Characteristics of System Modules

Characteristics of System Modules Identify and report the names , purpose and characteristics of system modules such as mother board, power supply, CPU, Memory modules, storage devices, display devices, adaptor cards, ports and cases in the given machine.(10 marks) Name: Mother Board (P4-GA-EP45T-UD3LR {775/DDR3} w/Sound+LAN) Purpose: The purpose of mother board is to guide the computer do computations. It has buses, or electrical pathways to allow data to travel between the various components that include in a computer and it have two-chip layout that can perform with lower power consumption. Characteristics: It is the basic system of the electronic circuit of computer and all the components for the computer system are glued on it with its various slots and connectors. Moreover, CPU, panel connector slots, memory cards, the adapter cards, DDR slots, AGP, AMR and PCI slots, north and south bridges are glued on it. The back panel ports stick through the back of the case. fig 1.1 Motherboard Name : Power Supply ( ATX power supply with 550W ) Purpose: The purpose of power supply is to deliver electrical power for every connector in the system board and its expansion converter of AC current voltage to DC current voltage. Characteristics: power supply is the converter of AC current voltage to DC current voltage and it has 24 pin or 20 pin and 4 pin. Power supply of 24 pin and 20 pin is to provide motherboard and 4 pin auxiliary is for CPU fan. Name: CPU (Intel Core 2 Duo 2.93GHz {3 MB / 1066 / 775 LGA Socket}) Purpose: The CPU, the brain of the computer, is to receive data from user and it reads, interprets informations and executes commands. Characteristics: In a PC, the CPU uses its ALU (Arithmetic/Logic Unit) to carry out mathematical operation and it can change location data in memory to another address fig1.2_CPU Name : Memory Modules( DDR2 RAM 2GB 240pin 800 MHz Kingston ) Purpose: It enables computers to work faster because all the information processed by the CPU is written or read from memory, Characteristics: Memory module is a board used to refer to a series of dynamic random access memory integrated circuits modules mounted on a printed circuit board and designed use in personal computers, workstations and servers. Name : Storage Devices (such as Floppy, Hard disk, Tape, CD, DVD drives) Purpose: It can save data permanently from temporary data storage by optical and magnetic methods. Characteristics: Major magnetic devices (floppy disks, hard disks, and tape) are rigid disks that are permanently sealed in a non-removable, vacuum- tight portion of the drive unit. With the optical media (CDs, DVDs), data is stored digitally on a light-sensitive material by a powerful, highly focused a laser beam. Name : Monitor (19 LCD Color Monitor(View Sonic wide view 1932 wm with DVI+LED) Purpose: Monitor is the device to display the videos and graphics information generated by the computer through the video card Characteristic: Monitors are similar to televisions but display information at much higher quality. There are two kinds of monitor. They are CRT (Cathode ray tube) and LCD (Liquid Crystal Display).LCD monitors are much thinner, and less power consumptions than CRT monitors Name : Adaptor Cards Purpose: is to enable our computer to communicate with another peripherals such as monitor Characteristics: Motherboard Graphic Adaptors are low cost flat panel display interface card to use on board. Name : Ports Purpose: It is used to connect with electrical devices that need for personal computer system. Characteristics: It is the place where the devices needed to insert in motherboard for a computer. And there are many ports on following. Ports Name Pins Inserted Particles PS 2 6 pins Key Board, Mouse Serial 9 pins modem, mouse, joystick Parallel 25 pins printer VGA 15 pins monitor USB 4 pins mp3, memory sticks, etc. RJ 45 8 pins use to connect with network Name : Cases Purpose: It is the box or tower which can enclose the main components of a computer such as motherboard, power supply, drives and many peripherals. Fig 1.3- System unit and Casing Characteristics: Cases are usually constructed from steel, aluminium or plastic is sometimes used. And it is the largest component in computer system. Tower cases come in mini, mid and big towers and intended to stand on the floor. There are the capacities for CD-ROMs, floppy disk, hard disk drives. I/O ports can insert in back panel shield. Moreover, Cases are more than 14 inches tall. Task 1 b) Identify the names, purposes and performance characteristics of the standardized peripheral ports in the machine such as Serial, USB, Firewire, DB, RJ, Din, Mini-DIN, Centronics, Associated cabling and their connectors.(10 marks) Fig1.b Name: Serial Port(9 pin) Purpose: It is to provide a standard connector and protocol to let our attach devices, such as modems, to our computers Performance characteristics: It is the basic external connections to a computer and Integral part of most computers. The serial port completely in support of USB connections, most modems still use the serial port, and in some printers, PDA and digital cameras. Name: Parallel Port Purpose: It is to connect the PC with printer, external CD drives, Zip drive, external hard disk drive, or tape backup device. Performance characteristics: The parallel port can sends data simultaneously over 8 data lines at speeds of12,000 Kbps. Name: USB (Universal Serial Bus) Port Purpose: It can allow data to transfer between electrical devices and supply electrical power to that devices from cable without own power source. Performance characteristics: USB port is depended on by some devices to get power or charge their battery. Moreover, USB for connecting on personal computers and equipments such as network adapters, broadband and cellular modems for Internet access and USB printers to be shared on a home network. Name: Firewire Purpose: FireWire is to connect data storage devices to anything from TVs or even professional Video recording apparatus because of its high data transfer rate, its perfect for transporting video and digital playback device to a digital recording device. Performance: FireWire can provide more power than USB 2.0 and can deliver data faster. And most satellite TV and digital receivers for cable have a Firewire output and this port can recorded programming to a PC in its original MPEG2 format. Fig: 1b.1for FireWire on popular digital cable terminal used today. Name: DB Purpose: Data Bus is connections between and within the CPU, Memory, and many peripherals that used to carry data. Performance: There are 2 types of data bus, they are data bus and address bus. The data bus is the media that transfer data and address bus transfer information about where the data should go and let to be transferred data faster. Name: RJ (Registered Jack) Purpose: It is the port for twisted pair cable called LAN (local area networks), especially Ethernet or RJ-45 that can link with MODEM or Ethernet Switch. And Modem RJ-11 connectors are also to connect some types of LANs with modems. Fig 1b.2 RJ-45, RJ-11 and Ethernet switch Performance Characteristics: RJ-45 looks similar to RJ-11 that used for telephone equipment, but RJ-45 are a bit wider than RJ-11. Moreover, RJ-11 is connector that has a four or six wire connectors that used to connect telephone equipment. Name: Din Purpose: It is used in AT style of computer. DIN connectors held in place by the friction of the connector body and by pins. And it is used in PC keyboards, MIDI instruments, and etc. Performance characteristics: DIN connectors are round, with pins arranged in a circular pattern. Name: Mini-Din Fig. 1b.3 Purpose: It is the another type of DIN connector Performance: MINI-Din connectors are 9.5 mm in diameters and come in seven patterns that in the form of number of pins from 3 to 9. Name: Centronics (printer port) Purpose: Centronics port shows the bi-directional version of the port, which allows the transmission and reception of data bits at the same time. Performance Characteristics: It has 36 pin connector to connect the PC with printer. That can flow data with maximum 4 megabytes per second for faster printing and back channel status and management. And new standard of Centronics port can connect scanners, tape drives, Hard disks, computer networks adapters and other devices. Task 2 List the 3 most popular types of mother boards, their components and their architecture (6 marks) Types of motherboards XT (Extended Technology) AT (Advanced Technology) ATX (Advanced Technology Extension) The components include in motherboard are The CPU, the busses, Chipsets (controllers), sockets, connectors, etc Architecture of motherboard The motherboard is a board covered with electronics and it is just a big plastic sheet which is full of electrical conductors. And the conductors (tracks) run across and down, and in several layers in order to connect all the individual components, and transfer data between them. The cabinet and the motherboard are made to satisfy each other, so there are holes in the metal for the connectors mounted on the board. Finally, the motherboard has to be linked to the PCs power supply installed in the cabinet. b) Identify the purpose of CMOS memory in your PC and list out what it contains. Describe how and when it is necessary to change the CMOS parameters (6 marks) The purpose of CMOS in PC CMOS (Complementary Metal Oxide Semiconductor) is situated in BIOS chip It requires very little power and it can be powered by a small battery thats integrated into the motherboard hold data It will be automatically recharges while the computer is on. CMOS MEMORY contains Standard CMOS Setup Program BIOS Features Setup Program Power Management Program PNP/ PCI Configuration Program Load BIOS Defaults Program Load Setup Defaults Program Looking about Integrated Peripherals Supervisor Password User Password IDE Hard Disk Drive Auto Detection Hard Disk Drive Low Level Format Save and Exit Setup Program Exit Without Saving Program CMOS Parameters can be changed in CMOS Setup Program and this program can be entered by pressing the DEL or F2 key continuously during the Window Program is started to run. In Most Motherboards that have jumper which allows the user to return to the default CMOS setting configured by the manufacturer in CMOS restore to factory defaults. This is useful because when you cannot enter the CMOS Setup Program because of the incorrect CMOS setting or Lost CMOS Setup password. So, that make sure the power is completely off when you shorten the jumper. c) You are required to use two different types of Printers and list the following information derived from each printer: i) What are the printer technologies, interfaces and options for upgrades available for your printers (4 marks) ii) What are the 2 common printer problems which you can expect from our printers, list our remedies for the problems using appropriate references? (4 marks) Two different types of Printers are Serial Printer Page Printer In Serial Printers, Two Groups can be categorized as follow: Impact Printers (Using Ribbon) -Dot Matrix Printers b) Non- Impact Printers (Using Toner Cartridge) -Thermal Printers -Ink Jet Printers In Page Printers, Non Impact Printers Laser Printers (Mono chrome, Color laser) Interfaces Of Printer: It is a collection of hardware and software that allows the printer to communicate with a computer. It can make some printer more flexible in multiplatform environment. If the printer has several interfaces, it can usually exchange between them on the fly so that several computers can print at the same time. Reference from: A+ Fast Pass written by David Groth Options for Upgrade: Resolution Of Printer can be measured as DPI (dots per inches) Printer Buffer Two Common Printer Problems Paper Jam Cause of Toner drum on laser printers Remedies for Printer Problems If the is jammed, the first work is to pull out any remnants. Even the smallest piece of paper could cause the problem so check your printer carefully. If the problem is related with toner cartridge, check to see your printer toner cartridge that is empty or low. So, the solution is to refill the toner to your laser printer and this problem is depending on time and you must check once a year for your printer. Moreover, the major problem is the ink will dry out in the small nozzles and block if they are not use at least once a week. Task 3 For this task and subsequent task you need to set up a small Windows XP network using at least 3 computers. Produce a report with appropriate screen capture evidencing your practical work and covering the following information: Identify the types of network cables, their characteristics and the connectors which you will use for the network.(5 marks) Types of Network Cables Characteristics Connectors that use for the network Unshielded Twisted Pair (UTP) Cable It consists of several pairs of wires twisted in the insulated jacket and found in 10/100 Base T Ethernet networks. Topology: Star RJ 45 Coaxial Cable (RG) Suitable for most LANs communications that consists of copper wire sealed by insulation and metal foil shield Topology: Bus RJ 58 (use for 10base2 (Thinnet) Ethernet),RJ 8(use for 10base5 (Thicknet) Ethernet), Fiber Optic Cable A thin, flexible glass fiber covered by rubber coating and provides transmission speed from 100 Mbps up to 1 Gbps and a maximum distance of several Miles. Topology: Star ST/SC ST a barrel-shaped connector SC- square type connector Shielded Twisted Pair (STP) Cable 10 Mbps to 2 Gbps for Ethernet, 16 Mbps for Token Ring Topology: Star or Ring RJ 45 for Ethernet, IDC/UDC for Token Ring (IDC-IBM data connector, UDC-Universal Data Connector) Research and list five different technologies available for Internet connectivity for your network and list their strengths and weaknesses. (10 marks) 5 different technologies for Internet Connectivity DIAL-UP Dial up internet uses a modem and dial-up networking (DUN) in Window to establish a connection between a PC and an Internet Service Provider (ISP). It uses standard telephone lines and ties up the phone while it is operating. Dial-up speed is limited to between 52 Kbps and 56 Kbps. ISDN (Integrated Service Digital Network) it is a special type of phone line that is able to carry data faster than a regular dial-up. It also has a separate voice channel, so you can place voice calls while connected to the Internet. It requires special phone lines from the phone company. ISDN is a dial up connection and uses dial up networking. However, it establishes the connection much more quickly than a standard dial-up, usually within 5 seconds. ADSL (Asymmetric digital subscriber line) It enables Internet using existing copper wired telephone networks. It uses the main concept of DSL technology and it works by splitting the existing telephone line signal into two: one for voice and the other for data. ADSL is asymmetric as it uses most of the channel to transmit downstream to the user and only a small part to receive information from the user. http://homepages.uel.ac.uk/u0113650/DSLBASICS.html FIBER CONNECTION It can transfer data via light waves. And data transmission is incredibly fast. They are made from glass or plastic fibers in the core of the cable surrounded by a cladding layer (designed to reflect light back towards the core) and a buffer coating, BROADBAND internet access Broadband has a high rate data transmission and minimum speed that users can get is 256 Kbps. Broadband uses lower-bitrate transmission methods. Broadband technologies supply double rate than Dial-up modems and generally without disrupting telephone use. Strengths and Weaknesses for Internet Connectivity Kinds that use for Internet Connectivity Strength for using this technology Weakness for using this technology Dial-up . Cheapest type of Internet connection . Low price . Lower speed than any other . Discomfort of typing up phone line ISDN . Call setup is very quick . Low retrieval time . Can carry data and voice at the same time and voice clearness is incomparable . ISDN routers and modems are more expensive than any others . Data connections are not available in all locations ADSL . High speed connection . Use of phone line while connected . Faster download than upload . Line testing takes a long time . Home user is contented at 50:1 by sharing your 512 Kbps with 49 other people, giving you 10 bps. Fiber connection . It can transmit data over long distance without much data loss .. . Can cost more price than broadband connection cost . not susceptible radio frequency Broadband . Maximum transmission speed is 4 Mbps . Transmission capacity is faster than Primary ISDN . Bandwidth is not always reliable for customer . Not sufficient enough to provide good video quality. c) List the 5 networking capabilities of Window XP (5 marks) 5 networking capabilities of Windows XP Internet Connection Firewall (ICF) When your computer is connected to the Internet or other route for the network, there is a threat of not permission attack to approach your computer data. If the computer is connecting the external network, a Firewall can protect your home network versus the danger of unsafety network jammed to pass. Network Setup Wizard Window XP introduces us with a Network Setup Wizard for easy using of Setting up your network and it use to configure the Internet connection on your network, and supply the Internet Connection Firewall. Moreover, it can be run on the Window 98, Window ME and Window XP computers on your network using the CD or a floppy disk. Network Diagnostics Features Network Diagnostics features help diagnosing network problems increase people who is setting up small networks. The features of The Network Diagnostics Web Page and NetSh helper, Network Connections Support Tab, Network Connection Repair Link, Task Manager Networking Tab and Updated Command Line Network Diagnostics Tool, enable troubleshooting of various problems by the users. Point-to-Point Protocol over Ethernet (PPPoE) Window XP creates connections using Point-to-Point Protocol over Ethernet (PPPoE). By using this Broadband modem, LAN users can have high-speed data networks. And PPPoE provides separate connections for each user to a remote server. In addition, it also enables your internet connections join smoothly with Internet Explorer and other Window Applications. Wireless LAN Enhancements Window XP deploys some features and enhancements about Wireless LAN networks and these enhancements are summarized as follow. Enhanced Ethernet and Wireless Security (IEEE 802.1X Support) Wireless Zero Configuration Fig.3 c.1 showing about internet connections Task 4 Task 4 For this task you need to do a fresh install of Windows XP (or later operating system permitted by your tutor) on a computer. Prepare a report evidencing your practical work covering the following questions: List out the names, locations, purpose and contents of any 10 Windows XP (or later versions permitted) systems files.(10 marks) By this question, I need to install a Window XP (Service pack 2); I insert a Window XP installer disc into my CD drive. When the CD is read, the monitor screen shows the following messages. Fig 4a.1 By this message, I pressed any key such as Space, Enter, Backspace, etc Fig 4a.28 So Finally, The Window XP installation was finished and the wallpaper and Recycle Bin icon is display on the screen. Simple Reference: From Practical Room List out the names, locations, purpose and contents of any 10 Window XP (or later versions permitted ) system files (10 marks) Names of 10 Window XP system files Location: All system files are located in C: Window XP file Purposes of system files NTLDR : It usually run on primary hard disk drive and the purpose is to loading the boot process for Window NT operating system including Window XP, Window Server 2003. NTDETECT.COM : is used on computer that has BIOS firmware. In Windows Vista and later Operating Systems, NTDETECT.COM is now only to supports ACPI (Advanced Configuration and Power Interface). IO.SYS is an essential part of MS-DOS and Window 9x because it contains MS device drivers and DOS initializing Program. And it can initialize the device drivers into memo MSDOS.SYS It is a hidden system file created on the root of the boot drive. It can changed the PC environment by replacing the file contents [Paths] WinDir=C:WINDOWS WinBootDir=C:WINDOWS HostWinBootDrv=C [Options] BootGUI=1 Network=1 BootMulti=1 CONFIG.SYS can set up the memory managers in the system. It can load files, mostly TSRs and devices drivers, in turn(console, disk, serial port, etc BOOT.INI: is to protected from user configuration by having the file attributes such as system, hidden, read-only. To manually edit it AUTOEXEC.BAT contains DOS commands that executed automatically when a PC boots . This locates in the root directory of the hard drive of the computer and is used to set defaults to run programs that should be executed during setup. Contents: PROMPT $P$G COMMAND.COM is the default operating system shell file for DOS operating system and the default command line interpreter on DOS-based 16/32-bit Window versions of 9x and Me. NTUSER.DAT : it is to set the default language to instead of English and can edit file to correspond to the new language BOOT.INI it is a text file available on the computer. And it is fetched by NTLDR and displayed as OS options. Contents: [boot loader] timeout=10 default=multi(0)disk(0)rdisk(0)partition(2)WINDOWS [operating systems] multi(0)disk(0)rdisk(0)partition(2)WINDOWS=Microsoft Windows XP /fastdetect C: = Microsoft Windows b) Use the following tools in Windows such as Microsoft Management Console (MMC), Event Viewer and Task Manager on the system. List out the practical uses of these tools. (10 marks) Microsoft Management Console (MMC) Fig 4b.1 First, if you want to enter the Microsoft Management Console, youll enter RUN (win key + R key) program and type MMC. And then MMC program is opened. Fig 4b.2 In Fig 4b.2, there is no program in console root and if you want to add or remove snap-in, go to the File Text Menu Bar (Ctrl+m). You can add the programs that you want to do in the same time and you can click Remove button to remove the program that you dont want to do. Fig 4b.3 Fig 4b.4 shows that you can choose the programs that you want to do and Click Add if not you can click Close Button to exit from the program. Fig 4b.4 The above example shows that the user chose the Device Manager Program to add to the Console Root. And he clicks Add. Fig 4b.5 And the message box shows on the screen to choose the kind of computer (local or another) and the user chose local computer. Click Finish to save the program in add or remove snap-in. Fig 4.6 This above Add/Remove Snap-in box shows that the program that you already add and if you want to add second program, you will click Add button for next time. Fig 4b.7 Fig 4b.7 shows that the user seems to add Disk Defragmenter, Disk Management (Local), Event Viewer (Local), Device Manager on local computer. And the picture is clicked Disk Defragmenter program. Fig 4b.8 The picture shows the Console1.msc file is saved in desktop. Fig 4b.9 Also the Console1.msc file is saved on the desktop on the screen. So, you can also see the Console1.msc file on desktop. And so, u can be use Disk Defragmenter, Disk Management (Local), Event Viewer (Local), Device Manager on local computer by clicking the Console1.msc file. Event Viewer Fig 4b.10 If you want to use event viewer software program, press Window key+R and type eventvwr and click OK. Fig 4b.11 In event viewer software program, you can see the application, Security and System software icons. Fig 4b.12 When you click Application list, you can see what happen in your Computer Operation System such as Informations, Warnings, and Errors when the computer is running. Fig 4b.13 And system list shows how many events occur date by date such as Errors and Information. Fig 4b.14 is as same as Fig 4b.13 In above picture is about System Properties and it can be opened by clicking right click on system icon. Fig 4b.15 In the box of System Properties, the user can adjust the Maximum log size, overwrite events date and clear log manually. Fig 4b.16 Fig 4b.16 shows that the user can change the Event types if the only he wanted by clicking right click and go to view and then click filter. And click OK to show them or click Cancel to get back to the Menu. Task Manager If you want to enter the Task Manager Program, press Window Key and Run key to enter Run Program and type as taskmgr. Fig 4b.17 The above message box is showing that which applications are running on the OS and has Applications, Processes, Performance, Networking and Users icons. Fig 4b.16 The above picture shows that if you want to close Windows Messenger, select it and click right click and choose End Task. Fig 4b.17 And this above picture is about if you want to open the program (eg. Window Media Player), click New Task to create New Task. Fig 4b.18 Moreover, the user can look which program takes how much memory usage in Process Option. And if you want to close Window Media Player click end process to close. Fig 4b.20 And in Performance option, the user can see the CPU and PF usages and histories. Moreover, In Networking option, the use would see the Connection between Local Area Network. Fig 4b.21 In user list, the user can see that how many user accounts in there. And he can disconnect or log off the Administrator (user) account. à ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦Ãƒ ¢Ã¢â€š ¬Ã‚ ¦. c) Install two new devices after you have installed the Operation system and list out the procedures which you used for adding and configuring the devices drivers. (10 marks) I installed the Printer after you have installed the Operation system. Installation of Printer First, connect the data cable with Printer port. Fig 4c.1 And, go to the control panel and click the Printer and Faxes. Then, click Add a printer dialog-box. So, the screen shows the display box Welcome to the Add Printer. And then click Next to continue. 19th August, Thursday at 9:48 AM. Fig 4c. 2 And the message box shows that you need to choose local or network printer. If you want to share a printer, chose network printer. But you must have a printers driver in computer. So choose local printer for the users computer only. 19th August, Thursday at 9:49 AM. Fig 4c.3 Select printers port such as LPT (Recommended Printer Port/Parallel Port), COM (Serial port), USB port, so chose USB port. Fig 4c.4 I think you need to choose the manufacture and models of your printer. If you dont have printers model, click Have Disk button and choose and assign as HP and add as HP Deskjet 2200 series. Fig 4c.5 Choose either share the printer or dont share the printer. So choose dont share the printer. Fig 4c.6 So, finished the installation of printer. 19th August, Thursday at 9:55 AM. Fig 4c.7 At the end of the installation of Printer, your installed Printer is in use. Moreover, if you want to share this printer, click right-click to the sharing of printer. Fig 4c.8 And in the Sharing Tab, you need to choose Share this printer. 19th August, Thursday at 9:59 AM. Fig 4c.9 At the end, the installation is finished and the printer is ready to use now. 19th August, Thursday at 10:00 AM. Installation of Scanner Fig 4c.9 First, I mounted the scanner to USB port then the message box shows Found New Hardware and I clicked the right click to My computer icon and then choose Properties to see the property of scanner. 17th August, Tuesday at 12:37 AM. Fig 4c.10 In Hardware tab, I click the Device Manager to see for the scanner installation. 17th August, Tuesday at 12:38 AM. Fig 4c.11 In Device Manager Option, the new scanner program is showing Question Mark as unknown device or other device. 17th August, Tuesday at 12:38 AM. Fig 4c.12 For the first step, I go to the My computer program and then click the Canoscanner icon to open. In second step, I chose the Setup to Install the scanner. 17th August, Tuesday at 12:41 AM. Fig 4c.13 And the CanoScan Message Box is shown to install the scanner and then some software installation notes is shown as to know. 17th August, Tuesday at 12:42 AM. Fig 4c.14 And the message box shows that the check marks will be installed and remove the check mark if some program is not unwanted by clicking next time to unwanted program. And click Install to install the marked program and click Back to go back to the main menu. 1

Replacements to CFCs Essay -- CFC Environment Geology

Missing Chart What do CFCs do? CFCs are commonly used as refrigerants, solvents in industrial cleaning applications, and as aerosol propellants. Why are CFCs being replaced? When CFCs work their way up into the stratosphere, UV radiation from the Sun can break the molecule down, and release a chlorine atom. This chlorine atom then interacts with an ozone molecule (ozone is vital to the Earth's system in that it protects the surface from harmful UV rays). This interaction results in the destruction of ozone and the eventual release of the chlorine atom to break apart another ozone. It has been estimated that one chlorine atom can dismantle about 100,000 ozone molecules. Ozone's importance and the direct threat to it by CFCs, are the reasons behind the replacement of the chemicals. One thing to notice from the chart is the extremely high ODP for the Halon compounds. These compunds (as can be seen from their formulas) contain a bromine atom that can destroy more ozone when compared to a chlorine. This occurs because it takes longer for a bromine atom to be taken out of the stratusphere. Halons were used in foam blowing apparatuses for fire-retarding systems, but were phased out along with CFCs. Innovative chemical companies With the advent of the Montreal Protocol and other legislation to reduce the production and use of CFCs, companies have increased research and development of replacement system and/or chemicals. The companies that have produced proven products for cleaning, refrigeration, and propellant use are 3M and Dupont. Their products Dupont is a world renowned company whose major contributions include chemicals. On the order of CFC replacement, Dupont has developed hydrofluo... ...iverging nozzle where it is accelerated to supersonic speeds. The supersonic gas-liquid stream is directed onto components that require cleaning or cleanliness verification. The velocity imparted to the water by the gas flow gives it sufficient momentum at impact to remove contaminants on the surface of the component being cleaned or verified while simultaneously dissolving the contaminant into the water, which can be captured for cleanliness verification. The flow parameters for the gas-liquid nozzle can be set so virtually any gas and liquid can be used for a desired flow and mixing ratio. In addition, the size and number of nozzles are adjustable. This adjustability makes it possible to create sizes ranging from small handheld cleaning nozzles to very large multiple-nozzle configurations. Unfortunately, the cost and maintenance required for such a system is high.

Internal and External Force of Change for Synergetic Solutions Essay

Synergetic Solutions lets us know that change is something that will happen no matter what we do. Executing change is not as simple as acknowledging the need for change. Synergetic Solutions understands the internal and external factors that have required a change to take place, and desire to improve operations but executing the change can be difficult when met with conflict. Both employees and leaders must understand, through good communication, the need for change and the way by which to achieve that change successfully. To survive in recent market environment organizations need to change constantly with current conditions that are constantly, who can accept change survive and who cannot accept change and suffer the consequences. Changes brought a effect of strategic initiatives within a company and how it affects work design and organization culture. While change is occurring you can see opposition to change at individual and organizational levels, change agent has to implement va rious tactics to restrain the resistance and dead organization step reward to work on new strategies. Synergetic solution Inc. is a $6 million company in the business of system integration assembling and reselling leading computers brands. It has 300 employees mostly in the sales and service departments working in five locations across the east–coast. most employees in this trading organization possess only basic computer assembling and trouble shooting skills, while a few technically higher skilled individuals operates as the specialists. Harold red, chief executive officers made changes in to the network solution business of designing and implementing complete computing networks. He got four of synergetic brightest engineers trained and certified on networking technologies. One internal factor that has caused Synergetic Solutions to implement change is limited skills of employees. Most employees have basic skills to complete tasks but how many  continue with education hours to keep progressing and learning? As with Synergetic Solutions, most employees have the basic computer skills needed but only a few employees are specialists in a chosen field (UOP, 2010). Being a specialist requires more time, training, and education which most employees will not do individually but will do collectively within the organization if the organization provides opportunity. For any change to occur positively, employees need to be trained to implement new routines and daily processing of tasks that increase skills and abilities of eac h employee. With 300 employees who mainly work in sales and service, Synergetic Solutions must implement change to educate these employees to expand skills and abilities.Another internal factor for change is to increase revenue. The goal of Synergetic Solutions is to increase revenue every quarter and by 80 percent over the next nine months. To be successful and meet the goals of earned revenue, a change must take place. Synergetic Solutions is taking a look at the certification and training needed to redirect the organization from reselling leading computers to designing and implementing tasks.

Supply Demand Curve In The Airline Industry Tourism Essay Essay Example

Supply Demand Curve In The Airline Industry Tourism Essay Essay Example Supply Demand Curve In The Airline Industry Tourism Essay Paper Supply Demand Curve In The Airline Industry Tourism Essay Paper Airline industry provides us air transit that improves our lives by shortening the clip it takes us to make a finish and besides present goods. Airline industry undergoes oligopoly market, where merely a few Sellerss that provide similar merchandises or services but differentiated in the stigmatization and the publicity method. Basically, there are four chief classs in the air hose industry, which is international, national, regional, and lading. International flights supply services between states ; both national and regional flights are domestic flights within a state, but regional flights have shorter distance comparison to national flights ; lading is chiefly for the usage of conveyance goods. In this assignment, we are traveling to briefly explicate the determiners and the alterations in market status that affect the demand and supply of the air hose industry. There are few determiners that will do a alteration in the supply demand curve in the air hose industry. Determinants on demand curve. The first determiner is income. When a state experiences a growing in the economic system, the mean income of citizens will increase. In this instance, air ticket plays a function as a normal good, this is because an addition in the income will take to an addition in the demand of air ticket purchased, one illustration is households might go more frequently as they are in good economic status. The 2nd determiner is monetary values of related goods, where a alteration in monetary value of a good might impact the demand of the other good. In the air hose industry, the monetary value of fuel has a direct influence to the demand of air ticket. When the monetary value of fuel additions, air hose industry has to increase the monetary value of air ticket to keep its gross. Therefore, the fuel monetary value and the demand of air ticket have a relationship of complements, where addition in the fuel monetary value leads to a lessening in the demand for air ticket. However, in some particular instances particularly during a diminution in the economic system, the air hose industry will non raise the monetary value of air tickets because the clients would frighten off. Therefore, the demand of air tickets is besides rather dependent to the status of economic system. The 3rd determiner is figure of purchasers. The more the purchasers in the air hose industry, the demand of air ticket will be higher. When a publicity is held by the industry air hoses, there will be more purchasers on the purchase of air ticket. This is because the air tickets usually sell at a lower monetary value to pull more clients particularly during a not-so-peak season. Therefore, the demand or air tickets will increase and the air hose industry will derive more net incomes even though the air tickets are selling at a lower monetary value. The last determiner is outlook on future income and future monetary value, which means the anticipation of consumers on how much they will gain and the value of a good in the hereafter. For illustration, if the economic system has a positive development, where people expect a higher income in the hereafter, they might travel for a holiday and switch the demand curve of air ticket to the right. However, if they realize there will be an addition in monetary value of air ticket in the hereafter likely due to top out season, they will take to buy now so later and do the demand curve to switch to the right. For the other variable like gustatory sensations that can impact demand curve, we will disregard it because it is based on personal behaviour and is unsure to the air hose industry. Determinants on supply curve. The first determiner is input monetary values. When the cost of bring forthing goods additions, the supply will diminish. In air hose industry, one of the chief input monetary values is the fuel monetary value. As other variables are changeless, when the monetary value of fuel additions, the figure of flight per twenty-four hours will diminish to cut down the cost of air hose industry. The 2nd determiner is engineering. A better engineering can switch the supply curve to the right. Technology promotion plays a really of import function in air hose industry. Airline industry is seeking their best to seek for better engineering in fuel preservation. Besides, they besides work with airframe and engine maker in planing the constituents of aircraft to cut down the fuel ingestion of each flight. Therefore, with the betterment of engineering, air hoses can supply more flight so before utilizing the same sum of fuel. The 3rd determiner is weather. As this is air transit, weather frequently becomes a large issue to the air hose industry. A heavy snow during winter, or a bad pollution, frequently disrupts the takeoff and landing of aircraft. Unfortunately, conditions is non control by worlds, the air hose industry merely can make their best in supplying complete and safety installations to protect their users. Although bad conditions does non last really long, it does convey some consequence on flight for short periods. The last determiner is outlook on future monetary value. When a house expects there is a rise of monetary value in future, they will provide less today until the monetary value of the merchandise addition. In the air hose industry, when they expect the monetary value of air ticket to lift in the coming extremum season that brings higher net incomes, they will cut down or keep the figure of flights now. Therefore, when comparing the figure of flights for two periods, the supply for now can said to be less comparison to future. Since air hose industry undergoes the oligopoly market, the determiner of figure of Sellerss will be excluded. Other variables like revenue enhancements and subsidies will besides be excluded as they are non unsure. Decision As we can see from above, air hose industry has to concern many determiners that can impact the air hoses demand and supply. Besides, they have to detect carefully on the alterations in market status and take immediate action if there is any unexpected issue. Harmonizing to the Air Transport Association ( ATA ) , labour is the largest disbursals of the air hose industry, followed by fuel cost. Other variables like conditions and engineering besides have to set good attending to guarantee the safety and gross of the air hose industry. The survey of economic sciences may assist the air hose industry when doing a determination and better pick by supplying cognition on the efficiency usage of resources.

Twelver Shiites, or Ithna Ashariyah

Twelver Shiites, or Ithna Ashariyah Twelver Shiites, known in Arabic as IthnÄ  ‘AsharÄ «yah, or ImÄ miyÄ h (from Imam), form the principal branch of Shiite Islam and are sometimes synonymous with Shiitism, even though factions such as the IsmÄ Ã„ «lÄ «yah and ZaydÄ «yah Shiites do not subscribe to Twelver doctrine.   Alternate spellings include  IthnÄ  ‘AsharÄ «yah,  ImÄ miyÄ h,  and ImamiyÄ . Twelvers are the followers of the 12 imams they consider to be the only rightful successors of the Prophet Muhammad, beginning with Ali ibn Abu Talib (600-661 CE), Muhammads cousin and son-in-law, and ending with Muhammad ibn al-Hasan (born 869 CE), the 12th imam whoaccording to Twelver beliefwill emerge and bring peace and justice to the world, becoming the ultimate savior of humankind (Muhammad never appeared publicly and is currently considered in major occultation as the Mahdi). Sunnis recognize Ali as the fourth caliph, but founding commonalities between Sunnis and Shiites end with him. Some Muslims have never recognized the first three as legitimate caliphs, thus forming the nucleus of Islams protesting Shiites. The seeming subversion never sat well with Sunnis, whose habit it became to mercilessly and brutally persecute Alis followers and assassinate subsequent imams, most spectacularly among those the killing in the battle of Hussayn  (or Hussein) Ibn Ali, the third Imam (626-680 CE), on the plains of Karbala. The killing is most famously commemorated in the annual rituals of Ashura. The copious bloodletting gave Twelvers their two most prominent characteristics, like birthmarks on their creed: a cult of victimology, and a cult of martyrdom. The Safavid Dynasty Twelvers never had an empire of their own until the Safavid dynastyone of the most remarkable dynasties ever to have ruled Iranwas established in Iran in the 16th century and the Qajar dynasty in the late 18th century when Twelvers reconciled the divine and the temporal in the leadership of the reigning imam. Ayatollah Ruhollah Khomeini, through his 1979 Islamic Revolution in Iran, pushed the fusion of the temporal and the divine furthest, adding a layer of ideological expediency under the banner of Supreme Leader. A strategic revolutionary, in the words of writer Colin Thubron, Khomeini created his own Islamic state above Islamic law. Twelvers Today The majority of Twelverssome 89%reside in Iran today, with other large populations existing but being mightily oppressed in Azerbaijan (60%), Bahrain (70%), and Iraq (62%). Twelvers make up some of the most destitute populations in countries such as Lebanon, Afghanistan, and Pakistan as well. The three major legal schools of Twelver Shia Islam today include the Usuli (the most liberal of the three), the Akhbari (who rely on traditional religious knowledge), and the Shayki  (at one time absolutely apolitical, the Shaykis have since become active in the Basra, Iraq, government as its own political party).

Plain Tour Essay Example | Topics and Well Written Essays - 500 words

Plain Tour - Essay Example Florida Bebidas acknowledges the consumer's freedom of choice, emphasizes its powerful position in its operations, and indicates that production efficiency is subservient to consumer reaction. In order to remain competitive, Florida Bebidas increased its product lines and manufactured bottled water, natural fruit drinks, juices, nectars, flavored alcoholic beverages, and carbonated drinks. Currently, it employs 2.638 people. In contrast to many other companies, Florida Bebidas penetrated different markets such as real estate industry and tourism industry (since 1950s). Today, its three main subsidiaries are in Florida Bebidas, Florida Inmobiliaria, and Florida Capitales. To remain competitive and profitable, Florida Bebidas invests in beverage and bottling industries outside Costa Rica. Florida Bebidas is involved in a vast, complex manufacturing and distribution operation producing a wide variety and assortment of consumers' and producers' goods. This productive mechanism is designed to satisfy a myriad of consumer wants and desires. Complex manufacturing operations are balanced by a complex group of marketing operations. The result is a maze of marketing networks designed to tie the actual and potential demands of the marketplace to company operations.

Organisational change management Essay Example | Topics and Well Written Essays - 3000 words

Organisational change management - Essay Example Such moves, however, may not be successful in ensuring the company’s progress. The Case Study D2, the auto components producer, introduced change due to external pressures such as competition from other auto parts manufacturers, and the financial recession that resulted in fewer customers. In response to these external pressures, D2 made some immediate changes to counter the down turn in revenue. To cut costs, the company stopped manufacturing some of its components while increasing the production of others in specific sites. The company also made the decision to close down its UK Plant because it contained archaic manufacturing technical gadgets. Moreover, the company’s management is yet to divulge the new changes of the impending closure of the UK Plant to its employees. It is a fact that the workers based at the UK plant in Didcot will be shocked by their discharges because they are expecting continued business operations with even more investment or capital being di rected into the operations there. It also has not deigned to share the new strategies with the firms remaining employees. Only the higher ranking managers are aware of the strategies. Most researchers tend to first evaluate organisational change through the input of Kurt Lewin’s Field theory. The field theory asserts that all businesses exist in an active though constant state. To sustain this balance, businesses are compelled to make changes in reaction to forces that affect or influence the business’s field (Burnes 2004). Lewin’s model seeks to prove that most of the time, any kind of organisational change will be gradually realised. Moreover, when a company is experiencing a crisis, any organisational changes it decides on are quickly implemented. The field’s theory states that when an organisation ahs to realise changes on a fast pace, it has to ensure that there are corresponding powerful forces working to see the needed changes become an accepted pa rt of the organisation’s functions (Burnes 2004). The theory also asserts that there is a need to ensure that there is a dissuasion of any efforts that encourage the organisation’s status quo to remain. Lewin’s model asserts that, when there is gradual change in an organisation, the necessary steps will take place in three stages: (i) The old, archaic and ‘accepted’ business operations or ways of doing things must be ‘unfrozen’ or removes altogether so that the coming changes can be allowed to take hold without any competing functions making the process difficult. In the ‘unfreezing process’, an organisation’s management will examine why the change is necessary while also looking into facts that exists and which might impair or assist the changes that will be suggested. The management will also encourage workers to think as they do about the necessity of incorporating changes in the organisation in order to improve i t. (ii) In the second stage, movement, the organisation starts to change its behaviour. These shifts in behaviour usually occur after the organisation’s personnel understand the how different options of change will work and have selected their preferred method of change (Cameron and Green 2004). In most organisations, the process of change is supervised or overseen by a specialist such as an organisational development practitioner. (iii) In the third stage of the field model, refreezing, the organisation generates structures and functions to