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Chapter 9: Installing & supporting I/O devices

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1 Chapter 9: Installing & supporting I/O devices
Note: teacher no need to explain slide by slide! But focus on important point only. Lesson Plan: 4 hours = 200 minutes divided into two session 100 mns per session 1st session: Objective: describe how FDD & HDD store data physical & logical, install FDD 1. review old lesson mns 2. introduction 5 mns : slide 1, 2, 3: draw student attention and make them interested in the lesson, explain the important about the lessons…. 3. Body: slide 4 – : 65 mns - Floppy: slide : 20 minutes - hard disk: slide : 10 minutes 4. Summary, review question and assign homework: 15 minutes 2nd session: Objective: describe HDD interface, select and install HDD, indentify troubleshooting with HDD & FDD 1. Review old lesson: minutes, ask and answer 2. draw student attention: 5 minutes 3. body: slide 16th – 39th : 65 minutes - hard drive interface: 15 minutes: slide 16th – 26th - select and install HDD: 20 minutes: slide 27th – 32nd - troubleshoot HDD: 15 minutes: slide 33rd – 39th 4. Summary, assignment homework: 15 minutes - slide 40th , 41st , 42nd , 43rd Chapter 9: Installing & supporting I/O devices

2 Objectives After you have completed this lesson, you will be able to:
Identify name, purpose, and characteristic of input/output devices Describe about monitors and video cards and how they relate to the system. Identify the general approaches you need to take when installing and supporting I/O devices Identify name, purpose, and characteristic of ports and expansion slots for add-on devices. Install and support I/O devices. Identify diagnostic procedures and troubleshooting techniques to troubleshoot I/O devices, including keyboards pointing devices, and video. Note for teacher: print slide only from 1st slide to 48th slide, and word document Copyright © CIST

3 Scenario In this chapter, you will learn:
Basic principle to support I/O devices Working with keyboard The mouse and other pointing devices Specialty input devices Monitor, projectors, and video cards Using ports and expansion slots for add-on devices Troubleshooting I/O devices Copyright © CIST

4 Basic Principle To Support I/O Devices
Consider these basic concepts used when supporting I/O devices: Every I/O device is controlled by software When it come to installing or supporting a device, the manufacturer knows best. Some devices need application software to use the device. Problems with a device can sometimes be solve by updating the device drivers. Learning about I/O devices is a moving target. Copyright © CIST

5 Scenario In this chapter, you will learn:
Basic principle to support I/O devices Working with keyboard The mouse and other pointing devices Specialty input devices Monitor, projectors, and video cards Using ports and expansion slots for add-on devices Troubleshooting I/O devices Copyright © CIST

6 Working With Keyboards
Ergonomic means “designed fro safe and comfortable interaction between human beings and machines.” A danger from using keyboard too much is repetitive stress injury (RSI) known as carpal tunnel syndrome (CTS) Figure 9-1 Copyright © CIST

7 Working With Keyboards
HOW KEYBOARD KEYS WORK Keyboard use one of two common technologies in the way the keys make contact: Foil contact Metal contact KEYBOARD CONNECTORS Keyboards connect to a PC by one of four methods: DIN connector (outdated) PS/2 connector (sometimes called mini-DIN) USB port Wireless connection Note: there are two PS/2 connector: one for mouse and one for keyboard, physically, the mouse and keyboard connector fits into either port, but they both can’t be exchangeable mean you cannot connect mouse to the keyboard connector and vice versa. Copyright © CIST

8 Working With Keyboards
INSTALLING HOW KEYBOARD Because the system BIOS manage the keyboard, no keyboard drive are necessary. Exception for the wireless keyboard CLEANING THE KEYBOARD Mouse and keyboard need to be regularly cleaned to keep them working well You can use damp cloth to clean the keyboard surface You can also turn the keyboard upside down and bump multiple keys wit flat palm Use a can of compressed air to blow dust and debris Copyright © CIST

9 Scenario In this chapter, you will learn:
Basic principle to support I/O devices Working with keyboard The mouse and other pointing devices Specialty input devices Monitor, projectors, and video cards Using ports and expansion slots for add-on devices Troubleshooting I/O devices Copyright © CIST

10 The Mouse And Other Pointing Devices
A pointing device allows you to move a pointer on the screen and perform tasks such as executing (clicking) a command button. Copyright © CIST

11 The Mouse And Other Pointing Devices
MOUSE TECHNOLOGIES Mouse technologies include the wheel moue and the optical mouse. Copyright © CIST

12 The Mouse And Other Pointing Devices
A mouse can connect to the computer by several methods: Motherboard mouse or PS/2-compatible mouse By using mouse bus card that provide a PS/2 mouse port (bus mouse) By using the serial mouse (serial mouse) By using USB port By using a Y-connection with the keyboard By using a cordless technology whereby the mouse send signals to a sensor on the PC Copyright © CIST

13 The Mouse And Other Pointing Devices
TOUCH SCREENS A touch screen is an input device that use a monitor or LCD panel as the backdrop for input options. OTHER POINTING DEVICES Trackballs and touch pads Manufacturer Web Site BioStik Mitsumi Logitech Microsoft Intel Belkin Keytec, Inc. Copyright © CIST

14 Scenario In this chapter, you will learn:
Basic principle to support I/O devices Working with keyboard The mouse and other pointing devices Specialty input devices Monitor, projectors, and video cards Using ports and expansion slots for add-on devices Troubleshooting I/O devices Copyright © CIST

15 Specialty Input Devices
BARCODE READERS FINGERPRINT READERS AND OTHER BIOMETRIC DEVICES A barcode reader is used to scan barcodes on product to maintain inventory or at the point of sale (POS). Barcode come in different of size and features, including a pen wand (simplest and least expensive), slot scanners (to scan ID cards as they are slid through a slot), a CCD scanner (Charge-Couple scanner is a gun-type scanner often used at check-out counters), and image scanner (include a small video camera), and a laser scanner (most expensive and best type). A barcode can interface with PC by wireless connection, a serial port, a USB port, or a keyboard port. A biometric device is an input device that input biological data about a person, which can be input data to identify a person’s fingerprints, handprints, face, voice, eye, and handwritten signatures. Copyright © CIST

16 Scenario In this chapter, you will learn:
Basic principle to support I/O devices Working with keyboard The mouse and other pointing devices Specialty input devices Monitor, projectors, and video cards Using ports and expansion slots for add-on devices Troubleshooting I/O devices Copyright © CIST

17 Monitors CRT monitor (takes up a lot of desk space and costs less)
LCD Monitor (frees your desk space, looks cool, and cost more) HOW A CRT MONITOR WORKS CRT: chathode-ray tube LCD: riquid crystal display, LCD monitors are also called flat panel monitor for desktop. Copyright © CIST

18 How A LCD Monitor Works TFT (thin film transistor) display or active matrix display DSTN (dual-scan twisted nematic) display or passive matrix display Copyright © CIST

19 Choosing Between A CRT Monitor And An LCD Monitor
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20 Choosing Between A CRT Monitor And An LCD Monitor
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21 Choosing Between A CRT Monitor And An LCD Monitor
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22 Monitors, Projectors, And Video Cards
The different resolution standards are as follows: VGA (Video Graphics Array) support up to 640x280 SVGA (Supper VGA) support up to 800x600 XGA (eXtended Graphic Array) support up to 1024 x 768 SXGA (Super XGA) support up to 1280x 1024 SXGA + is a variation of SXGA and uses a resolution of x 1050 WSXGA + (Wide SXGA +) use a resolution of 1680 x 1050 UXGA (Ultra XGA) supports up to 1600 x 1200 WUXGA (Wide UXGA) supports up to 1920 x 1200 APPLY CONCEPT: INSTALLING DUAL MONITOR A+ Tip: the A+ Ess. expect you to know about these resolution used on LCD monitors: XGA, SXGA+, UXGA, and WUXGA. In addition, you need to be familiar with thee terms: active and passive matrix, contrast ratio, and native resolution. Copyright © CIST

23 Using A Projector Copyright © CIST

24 Video Cards The fives of data transfer are as follow:
RGB video using a VGA port: use a regular 15-pin VGA port DVI (Digital Visual Interface): for video card that only has a DVI port Composite video: use with Composite Out port to send output to a TV, have only one pin at the central of the port S-Video (Super-Video): use by some high-end TVs and video equipment, 4 pins round port HDMI (High-Definition Multimedia Interface) is currently used on television and other home theatre equipment. Copyright © CIST

25 Video Cards Copyright © CIST

26 The Bus Used By Video Cards
Four buses have been used for video cards in the past 20 years or so. They are VESA bus, The regular PCI bus, The AGP bus, and The newer PCI Express bus. VESA and AGP buses were developed specifically for video Copyright © CIST

27 Different AGP Standards
Note: if you are trying to buy an AGP video card to match a motherboard slot, you have to be really careful. When reading an AGP ad, it’s hard to distinguish between AGP 3.3 V and AGP 3.0 V, but there’ a big difference in these standards, and they are not interchangeable. Copyright © CIST

28 Different AGP Standards
VESA and AGP buses were developed specifically for video Copyright © CIST

29 PCI Express VESA and AGP buses were developed specifically for video
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30 Graphics Accelerators
A graphic accelerator is a type of video card that has its own processor to boost performance. Notes: One problem high-end graphics cards have is overheating. One possible solution is a PCI fan card mounted next to the graphics card. Some feature of a graphic accelerator card are MPEG decoding, 3-D graphics, dual porting, color space conversion, interpolated scaling, EPA Green PC support, digital output to flat panel display, and application support for popular, high-intensity graphic software such as Auto-CAD and Quart. Copyright © CIST

31 Video Memory The following list describes the different types of video memory: VRAM (video RAM) SGRAM (synchronous graphics RAM) WRAM (window RAM) MultiBank DRAM (MDRAM) 3-D RAM Direct RDRAM (DRDRAM) Graphics DDR, Graphics DDR2 (GDDR2), and Graphics DDR3 (GDDR3) Copyright © CIST

32 Installing A Video Card
Check your motherboard documentation Remove case cover and insert card in the slot and slide the retention mechanism Replace the computer case cover, plug the video cable, and turn on the system, Windows will launch the Found New Hardware Wizard Right-click anywhere on the desktop > Properties Select Settings tab > click Advanced > click Adapter tab Insert the CD came with the video card and click Updates Drivers and follow the onscreen direction. After the drivers are installed, use Display Properties window to check the resolution and refresh rate for monitor. Manufacturer Website Web Site ASUSTek Computer, Inc. ATI Technologies, Inc. Creative Technology, Ltd. Grainward Co., Ltd. Hercules Computer Tec. Matrox Graphics, Inc. MSI Computer Corporation nVidia VisionTek Copyright © CIST

33 Scenario In this chapter, you will learn:
Basic principle to support I/O devices Working with keyboard The mouse and other pointing devices Specialty input devices Monitor, projectors, and video cards Using ports and expansion slots for add-on devices Troubleshooting I/O devices Copyright © CIST

34 Using Ports And Expansion Slots For Add-on Devices
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35 Using Ports And Expansion Slots For Add-on Devices
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36 Using Serial Ports and Parallel Ports
RS-232c (Reference Standard 232 revision c) SPP (Standard Parallel Port) EPP (Enhanced Parallel Port) ECP (Extended Parallel Port) Figure 9-35 COM In DOS systems, the name of a serial communications port. DOS supports four serial ports: COM1, COM2, COM3, and COM4. However, most software uses system interrupts to access the serial ports, and there are only two IRQ lines reserved. This means that the four COM ports share the same two IRQ lines. Typically, COM1 and COM3 use IRQ4, while COM2 and COM4 use IRQ3. So in general, if you have two devices, one of which is attached to COM1 and the other to COM3, you cannot use them simultaneously. parallel port Last modified: Monday, July 21, 2003  A parallel interface for connecting an external device such as a printer. Most personal computers have both a parallel port and at least one serial port. On PCs, the parallel port uses a 25-pin connector (type DB-25) and is used to connect printers, computers and other devices that need relatively high bandwidth. It is often called a Centronics interface after the company that designed the original standard for parallel communication between a computer and printer. (The modern parallel interface is based on a design by Epson.) A newer type of parallel port, which supports the same connectors as the Centronics interface, is the EPP (Enhanced Parallel Port) or ECP (Extended Capabilities Port). Both of these parallel ports support bi-directional communication and transfer rates ten times as fast as the Centronics port. When a serial port is used by an external modem, you need to know that in documentation, the serial port is called DTE(Data Terminal Eqipment) And the modem is called the DCE(Data Communication Equipment) Copyright © CIST

37 Infrared Transceivers
An infrared transceiver, also called IrDA (Infrared Data Association) transceiver or an IR transceiver Version of USB USB Version 1.1: 1.5 Mbps and 12 Mbps USB Version 2.0: 480 Mbps Copyright © CIST

38 Using USB Ports USB allows for hot-swapping and hot-pluggable devices.
USB host controller Preparing to install a USB device A motherboard or expansion card that provides a USB port An OS that support USB A USB device A USB device driver USB was originally created by a seven member consortium, including Compaq, Digital Equipment, IBM, Intel, Microsoft, NEC, and Nortern Telecom, and was designed to make the installation of slow peripheral devices as effortless as possible. Copyright © CIST

39 Using IEEE 1394 Ports IEEE 1394 as also called FireWire and i.Link
FireWire use serial transmission, support speed up to 3.2 Gbps Use with digital camcorders, DVDs, and hard drives One host controller support up to 63 FireWire devices Two standards for IEEE 1394 are 1394a and 1394b 1394a supports speeds up to 400 Mbps, 4.5 meters (15 feet) 1394a supports two types of connectors and cables: Tip: Windows XP, 2000, 98, all support FireWire. Windows 95 and NT do not. Plug and Play: the ability of a computer system to automatically configure expansion boards and other devices. you should be able to plug in a device and play with it without worrying about setting DIP switches, Jumpers, and other configuration elements. Hot plugging: the ability to add and remove a device to a computer while it is running and have the operating system automatically recognize the change. two external bus USB and IEEE 1394 supports hot plugging. Copyright © CIST

40 Using IEEE 1394 Ports A newer standard 1394b, supports speeds up to 3.2 Gbps, but currently are running at only 800 Mbps, which is why 1394 is also called WireWire 800. can support cable up to 100 meters (328 feet) and use 9-connector. Copyright © CIST

41 Installing And Supporting Expansion Cards
SELECTING PCI CARDS There are several PCI and PCI express standards. When selecting a Pci card you must match the notch, voltage requirements of the card, you can install a 32-bit PCI card into a longer 64-bit PCI slot, in this case, the extended end of the long PCI slot is unused. for motherboard that support the PCI-X standards, these PCI slots might support several different speeds. But know that when more than one PCI cards is installed in PCI slots using the same PCI bus, the PCI bus runs at the speed of the slowest PCI card. Copyright © CIST

42 Installing And Supporting Expansion Cards
INSTALLING AND CONFIGURING A PCI MODEM CARD A modem is a device used by a PC to communicate over a phone line. A modem can be an external device connected by a USB or serial port, a modem card Using either PCI or PCI Express slot, or a smaller and less expensive modem riser card. Or can be on-board component. On a notebook, a modem is embedded component on the motherboard or in a PC Card installed in a PC card slot. A modem provide one or two RJ-11 (registered jack 11), The most common speed is 56 Kbps APPLY CONCEPT: Mr. Bill was hurriedly setting up a computer for a friend. When he got the modem, he installed it as he had installed many modems in the past. He put the modem card in the PCI slot and turned on the PC. When the found new hardware Wizard launched, he installed the drivers, but it wouldn’t work. After four hours, then it hit him to read the instruction. He open the booklet and it say “The modem WILL NOT WORK if you install the card first and the software second” There are several PCI and PCI express standards. When selecting a Pci card you must match the notch, voltage requirements of the card, you can install a 32-bit PCI card into a longer 64-bit PCI slot, in this case, the extended end of the long PCI slot is unused. for motherboard that support the PCI-X standards, these PCI slots might support several different speeds. But know that when more than one PCI cards is installed in PCI slots using the same PCI bus, the PCI bus runs at the speed of the slowest PCI card. Copyright © CIST

43 Installing And Supporting Expansion Cards
Follow these steps to install a modem card: Read the documentation If you installing the modem card to replace an onboard modem port, enter CMOS setup and disable the onboard modem card. Protect PC from ESD Power down the PC and unplug it. Open computer case, remove face plate. Insert the card in the expansion card properly Insert the screw that connects the card to the case Replace the case cover, power cord, and other peripheral. Plug the telephone line from the house into the jack on the modem Copyright © CIST

44 Installing And Supporting Expansion Cards
Turn on your computer and follow these steps to configure modem: Log in as a user account that has administrative privileges You might have to boot twice: once to allow Plug and Play to detect firmware on the modem card that run the modem. In most case, Windows XP installs a modem card without giving you the opportunity to use the modem manufacturer drivers. Open Device Manager > Properties >Driver > Update Driver > No not at this time > Next Insert the CD, select Installed from a list or specific location (advanced) and click Next Select Search for the best driver in these locations. Click Browse > click OK and click Next > click Finish. After install drivers, verify that the OS configured the modem correctly, open Device manager and modem Properties Right-click on My network place > Properties > Create a new connection > Connect to the Internet Copyright © CIST

45 Scenario In this chapter, you will learn:
Basic principle to support I/O devices Working with keyboard The mouse and other pointing devices Specialty input devices Monitor, projectors, and video cards Using ports and expansion slots for add-on devices Troubleshooting I/O devices Copyright © CIST

46 Troubleshooting I/O Devices
Generally, when troubleshooting an I/O devices, follow these steps: For new installation, suspect the drivers are not installed correctly, plug in or set in the expansion slot correctly For problems after an installation, ask the user what has just changed in the system Analyze the situation and try to isolate the problem. Check simple things first Try using Device Manager to uninstall the device. Then reboot and installs the drivers again Exchange the device for a known good once or install the suspect device in a working system After problems is fixed, document the symptoms, source of the problem, and the solutions. Copyright © CIST

47 Troubleshooting Keyboards
A FEW KEYS DON’T WORK THE KEYBOARDS DOES NOT WORK AT ALL KEY CONTINUES TO REPEAT AFTER BEING RELEASED KEYS PRODUCE THE WRONG CHARACTERS MAJOR SPILL ON THE KEYBOARD Copyright © CIST

48 Troubleshooting a Touch Screen
Check the touch screen cable is connected to the PC and Device Manager recognizes the device with no errors Examine the screen fro excessive scratches Examine the edges of the touch screen for crumbs If the touch screen is not accurate, see the documentation Try uninstalling and reinstalling the touch screen under Windows Copyright © CIST

49 Troubleshooting A Mouse Or Touchpad
Check the mouse port connection Check the dust or dirt inside the mouse. Reboot the PC. Update driver Try a new mouse Uninstall and reboot then reinstall the mouse driver. Reboot the PC Reboot the PC and select the logged option from the startup menu to create the Ntbtlog.txt file. Continue to boot and check the log for errors. For notebook touchpad, check the CMOS setup to see if the touch pad was set to disabled. Copyright © CIST

50 Troubleshooting Monitors And Video Cards
POWER LIGHT (LED) DOES NOT GO ON; NO PICTURE POWER LED IS ON, NO PICTURE ON POWER-UP POWER IS ON, BUT MONITOR DISPLAYS THE WRONG CHARACTERS MONITOR FLICKERS, HAS WAVY LINES, OR BOTH NO GRAPHICS DISPLAY OR THE SCREEN GOES BLANK WHEN LOADING CERTAIN PROGRAMS SCREEN GOES BLANK 30 MINUTES OR ONE MINUTE AFTER THE KEYBOARD IS LEFT UNTOUCHED POOR COLOR DISPLAY PICTURE OUT OF FOCUS OR OUT OF ADJUSTMENT CRAKLING SOUND DISPLAY SETTINGS MAKE THE SCREEN UNREACHABLE Tips: a user very much appreciate a PC support technician who take a little time to clean a system being serviced. When a servicing a monitor, take the time to clean the screen with a soft dry cloth. Notes: when you turn on a PC, the first thing you see on the screen is the firmware on the video card identifying itself. You can use this information to search the Web, especially the manufacturer’s Web site, for troubleshooting information about the card. Caution: a monitor retains a charge even after the power cord is unplugged. If you are trained to open a monitor case to replace a fuse, unplug the monitor and wait at least 60 minutes before opening the case so that capacitors have completely discharge. Copyright © CIST

51 Vocabulary 3-D RAM hot-pluggable passive matrix display
active matrix display hot-swapping pixel bus mouse hub PS/2-compatible mouse chip creep i.Link refresh rate DCE, DTE I/O controller card resolution Direct RDRAM (DRDRAM) IEEE 1384 serial mouse dot pitch IEEE 1394 SGRAM DSTN infrared transceiver TFT (Thin film transistor) FireWire interlaced touch screen ECP, EPP isochronous data transfer UART flat panel monitor LCD monitor USB host controller graphic accelerator motherboard mouse VRRAM (video RAM) Graphics DDR (G-DDR) MultiBank DRAM (MDRAM) WRAM (window RAM) Graphics DDR2 (G-DDR2) noninterlaced null modem cable Hard-disk loading when vender sell counterfeit(not true) software by installing unauthorized software on computer for sale The right to copy the work call copyright Copyright © CIST

52 Summary Adding new devices to a computer requires installing hardware and software. Even if you know how to generally install an I/O device, always follow the specific instructions of the product manufacturer. Use Device Manager under Windows to determine what resources currently installed devices use. A keyboard can use a DIN, PS/2, USB, or wireless connection. Biometric input devices, such as a fingerprint reader or iris scanner, collect biological data and compare it to that recorded about the person to authenticate the person’s access to a system. Features to consider when purchasing a monitor are the screen size, refresh rate, interlacing, response time, dot pitch or pixel pitch, resolution, multiscan ability, color quality, contrast ratio, viewing angle, display type (active or passive matrix), backlighting, and type of connector (analog or digital) used by the monitor. A video card is rated by the bus that it used and the amount of video RAM on the card. Both features affect the overall speed and performance of the card. Some types of video memory are VRAM, SGRAM, WRAM, 3-D RAM, MDRAM, G-DDR, G-DDR2, G-DDR3, and DRDRAM. Copyright © CIST

53 Summary Most computers provide one or more USB ports, one parallel port, and perhaps an IEEE 1394 port or serial port to be used for a variety of devices. The PCI bus is presently the most popular local bus. The VESA local bus is an outdated standard designed by the Video Electronics Standards Association of video cards, the VESA bus was replaced by PCI, which as then replaced by the AGP bus, and more recently by the PCI Express bus. Generally, expansion cards used PCI Express or PCI slots. UART logic on a motherboard chipset controls serial ports. Because data might become corrupted, parallel cables should be not exceed 15 feet (4.5 meters) in length. HP recommends that the cable not exceed 10 feet (3 meters). Three types of parallel ports are standard, EPP, and ECP. The ECP type use a DMA channel. Serial ports are sometimes configured as COM1, COM2, COM3, or COM4, and parallel ports can be configured as LPT1, LPT2, or LPT3. The USB and IEEE 1394 bus only used one set of system resources for all devices connected to it, and USB devices are hot-pluggable. Copyright © CIST

54 Quizzes Among the following, what are the input devices?
Keyboard c. Monitor Mouse d. Processor Which one can support the fastest speed? USB c. Serial FireWire d. Parallel How many pins of the mini-DIN or PS/2 port? c. 4 d. 5 Copyright © CIST

55 Question Questions? Delivery guide for instructor. Guide to managing and maintaining your PC – sixth edition Video ‘chapter 9/Using Dual monitors’ Video ‘chapter 9/Installing a video card’ Video ‘chapter 9/FireWire ports’ Video ‘chapter 9/Disabling Onboard Ports’ and now it’s time to practice Copyright © CIST


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