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Computer Hardware How tos MUHAMMAD AHMED HUSSAIN / yahoo / homail.com By:

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Presentation on theme: "Computer Hardware How tos MUHAMMAD AHMED HUSSAIN / yahoo / homail.com By:"— Presentation transcript:

1 Computer Hardware How tos MUHAMMAD AHMED HUSSAIN / yahoo / homail.com By:

2 What will I Cover ? Hardware Show & Tell Hardware Show & Tell Internal Hardware: Parts & Ports Internal Hardware: Parts & Ports Peripheral Hardware Peripheral Hardware The XP Control Panel: Why it rules ! ! ! The XP Control Panel: Why it rules ! ! ! Drivers: Drivers: Why do we need them? Why do we need them? How to get them? How to get them? Installing a peripheral device Installing a peripheral device Troubleshooting Hardware: (Get the hammer) Troubleshooting Hardware: (Get the hammer) Fun With Windows (Formatting a drive, removable storage) Fun With Windows (Formatting a drive, removable storage) Questions: Stump the Rob ! ! ! Questions: Stump the Rob ! ! !

3 Definitions Drivers – A driver acts as a translator btw the device and the software (The Nervous system of a computer) re. Printer printing the document you made in MS Word Drivers – A driver acts as a translator btw the device and the software (The Nervous system of a computer) re. Printer printing the document you made in MS Word Operating System – The system that allows you to control your hardware/software/network (Windows XP, Linux) Operating System – The system that allows you to control your hardware/software/network (Windows XP, Linux)

4 Hardware Show and Tell What is hardware ? What is hardware ? The mechanical, magnetic, electronic, and electrical components making up a computer system. I will mainly be speaking about peripheral (external) hardware devices. But first here are some internal devices...

5 Internal Hardware Motherboard Motherboard A big plastic board that holds all the conductors and many components including connection to power supply. Motherboard The foundation of the computer

6 The Brains The Bios/ROM Chip A chip that stores the program that runs when the computer starts up. The Backup Battery Maintains clock and setting saved in CMOS (system setup)

7 The Big Mother Brain The CPU CPU (Central Processing Unit) Most PCs have microprocessors speed measured in micro hertz. CPU consists of 2 primary parts: Most PCs have microprocessors speed measured in micro hertz. CPU consists of 2 primary parts: ALU – Arithmetic Logic Unit performs Arithmetic and logical operations ALU – Arithmetic Logic Unit performs Arithmetic and logical operations Control Unit – Extract instructions from memory; decodes and executes them Control Unit – Extract instructions from memory; decodes and executes them

8 Storage Hard Drive The main storage device where software, documents, and files are kept on the computer The main storage device where software, documents, and files are kept on the computer Terms to know: Terms to know: Bytes – Storage space RPM – Rotation speed; the faster it goes the faster it can get information

9 Other Storage Floppy Drives – Becoming obsolete Floppy Drives – Becoming obsolete CD Drive – Only CD/R/W burners with a CD-R disk can save information CD Drive – Only CD/R/W burners with a CD-R disk can save information Removable Storage – To be discussed later Removable Storage – To be discussed later

10 Ports – A Brief Guide Serial Ports Serial Ports Very slow (transmits data one bit at a time); being replaced by parallel and USB ports. Still used for some keyboards and mice Parallel Ports Parallel Ports Faster than Serial port, slower than USB. Used for: Printers, Scanners, External hard drives, Iomega Zip removable drives Printers, Scanners, External hard drives, Iomega Zip removable drives

11 Parallel Port Parallel Port Parallel Port Moves data 8 bits at a time; faster than serial port; slower than USB. Still used for older : Printers Scanners External hard drives Iomega Zip removable drives Network adapters Tape backup drives

12 USB Ports/Cable The Connection of Today Faster than serial and parallel ports. Faster than serial and parallel ports. Most popular port for most devices, also used for PDAs and game counsels. Most popular port for most devices, also used for PDAs and game counsels. Expected to replace serial and parallel ports. Expected to replace serial and parallel ports. Many USB devices are plug and play (do not require drivers, start up once you plug them in) Many USB devices are plug and play (do not require drivers, start up once you plug them in) USB Symbol

13 USB Ports Many USB ports are conveniently kept on the front end which makes connecting peripheral devices much easier. Which means no more climbing/moving furniture or the horror of plumber views

14 Printers Most now connect to computer via USB port and include software/drivers that can monitor ink levels. Many printer drivers are already preset in Windows. Most now connect to computer via USB port and include software/drivers that can monitor ink levels. Many printer drivers are already preset in Windows. Two main kinds of printers are inkjet and LaserJet Two main kinds of printers are inkjet and LaserJet Inkjet Cartridge LaserJet Cartridge

15 Pros and Cons of Printers InkjetPros Prints finer, high quality, and photo quality pictures Prints finer, high quality, and photo quality pictures No warm up time No warm up timeCons Expensive ink cartridges Expensive ink cartridges Ink can blur and bubble if white Ink can blur and bubble if white

16 LaserJet Printer Pros Prints huge quantities of material at a time, at a lower cost than inkjet Prints huge quantities of material at a time, at a lower cost than inkjetCons More expensive to purchase than Inkjet More expensive to purchase than Inkjet Does not have the picture quality of inkjet Does not have the picture quality of inkjet

17 Other Printers Line Printers: Only used for huge bulk printing jobs (re. professional printer). Only used for huge bulk printing jobs (re. professional printer). Dot Matrix : Obsolete. Only dot matrix I would recommend is for cash registers or receipt printer. Obsolete. Only dot matrix I would recommend is for cash registers or receipt printer.

18 Keyboards Most Keyboards are plug and play and do not require individual driver software Most Keyboards are plug and play and do not require individual driver software Most keyboard ports are circular and located in the back of the computer below/next to the mouse port Most keyboard ports are circular and located in the back of the computer below/next to the mouse port Can be cleaned using a cleaning spray, keys can be removed via flat object Can be cleaned using a cleaning spray, keys can be removed via flat object come in many forms including: Wireles s Natura l Classica l

19 Mouse Many laptops have finger pads that act as a mouse but one can also hook up a traditional mouse to the computer Much like a keyboard, a mouse can be wireless; some older mice and portable mice do have software that acts as a driver and also ask you to align mouse so that it knows all of its positions (can also aligned in the control panel under mouse). Much like a keyboard, a mouse can be wireless; some older mice and portable mice do have software that acts as a driver and also ask you to align mouse so that it knows all of its positions (can also aligned in the control panel under mouse). If mouse is unresponsive or insensitive clean using a Q- tip.

20 Removable Storage USB Stick/Flash Drive A stick-like device that connects to a USB port and can store data like a zip drive or a floppy drive. A stick-like device that connects to a USB port and can store data like a zip drive or a floppy drive. Will store dozens of floppy disks worth of information. Many sticks have file encryptions feature and write protect options which prevents viruses from infiltrating computer. Will store dozens of floppy disks worth of information. Many sticks have file encryptions feature and write protect options which prevents viruses from infiltrating computer. Can be used multiple times Can be used multiple times

21 USB Sticks Problems The biggest problem with sticks is that some are not plug and play; thus if someone tries to use a USB stick on your library computer it might not work. Despite the fact that manufacturers say that flash drivers are installed on all Windows O/S post 2000 and Lynx; I have personally had problems with some sticks working on our computers (had to install driver software) The biggest problem with sticks is that some are not plug and play; thus if someone tries to use a USB stick on your library computer it might not work. Despite the fact that manufacturers say that flash drivers are installed on all Windows O/S post 2000 and Lynx; I have personally had problems with some sticks working on our computers (had to install driver software)

22 Portable Media Player/Drive A type of flash drive that stores, organizes and plays digital music files. It is more commonly referred to as an MP3 player or brand name I Pod A type of flash drive that stores, organizes and plays digital music files. It is more commonly referred to as an MP3 player or brand name I Pod Data can be downloaded from sites such as tunes, MP3.com, or downloaded from your own CDs on to a computer and transferred to drive Data can be downloaded from sites such as tunes, MP3.com, or downloaded from your own CDs on to a computer and transferred to drive Most computers are equipped with a form of an internal MP3 player (Win amp, Real Player, Windows Media Player Most computers are equipped with a form of an internal MP3 player (Win amp, Real Player, Windows Media Player

23 Much of the hardware discussed can be accessed or controlled with Windows XP Control Panel

24 Control Panel What is it ? The control panel is the virtual nerve centre of your computer. It is a very user friendly way to deal with hardware and O/S configuration. The control panel is the virtual nerve centre of your computer. It is a very user friendly way to deal with hardware and O/S configuration. It can be found in: It can be found in: Start | Setting | Control Panel

25 Some notable options include... Chang e Display Setting s

26 Add or Delete Software

27 Update Windows

28 Add Hardware

29 System Properties Create system restore Create system restore Name Computer (Very Name Computer (Very important to prevent confusion on system maintenance) Remote Settings (when computer is down 3rd Party can take over computer) Remote Settings (when computer is down 3rd Party can take over computer)

30 User Accounts ChangePasswords& Permission Permission

31 What is a Driver ? Further Definition A program that controls a device; every device requires a driver. Many are already installed on the computer or are included in the system program (re. when you buy a Dell computer there should be a disc that includes drivers for software included or it is a part of the reboot program). A program that controls a device; every device requires a driver. Many are already installed on the computer or are included in the system program (re. when you buy a Dell computer there should be a disc that includes drivers for software included or it is a part of the reboot program).

32 How to get Drivers The device might be plug and play. Plug the device into the USB/fire wire port (Driver already configured on O/S) The device might be plug and play. Plug the device into the USB/fire wire port (Driver already configured on O/S) Look in hardware package: a driver disk should be included (Run the startup/install program of the disc and follow instructions) Look in hardware package: a driver disk should be included (Run the startup/install program of the disc and follow instructions)

33 Get Driver from company website website Look for support/drivers section. Most companies have downloadable drivers. If there is no driver on line, contact company to see if they can send you disk with the driver on it.

34 Get Driver from Control Panel Go to Control Panel | Add Hardware Go to Control Panel | Add Hardware Follow instructions Follow instructions

35 Go to a Driver Website Many sites such as: Many sites such as: Offer drivers for large amounts of hardware. I can not guarantee the security for these sites. I recommend only using these sites as a last resort.

36 Things to Consider When Purchasing/Installing Hardware Do you want it to be read from the network or an individual terminal ? Do you want it to be read from the network or an individual terminal ? Who do you want to use it ? Who do you want to use it ? Do you want a warranty ? Do you want a warranty ? Is the port accessible if you are moving hardware around frequently ? Is the port accessible if you are moving hardware around frequently ?

37 Things to Consider When Installing/Connecting Hardware Is the hardware going to be using a dedicated port or are you going to be moving the hardware around to various machines? Is the hardware going to be using a dedicated port or are you going to be moving the hardware around to various machines? Is the port accessible if you are moving hardware around frequently ? Is the port accessible if you are moving hardware around frequently ? Do you have a USB cable? (Some hardware does not come equipped with a cable) Do you have a USB cable? (Some hardware does not come equipped with a cable)

38 Installing a peripheral device 1. Open box and remove all wiring and documentation (see Mariannes Presentation) 2. Peruse/Read manual 3. Connect all wiring to hardware 4. Insert wiring into internal port (see manual for port) 5. See if O/S reads hardware (might require a minute) if not a driver should be installed

39 Software & Drivers for Peripheral Devices Install/run driver software (if it is being used by multiple machines install driver on Network computer) Install/run driver software (if it is being used by multiple machines install driver on Network computer) Do a test on device. Does it work ? If so you might want to look at the additional software that came with hardware and decide whether or not you want to use the software (re. picture editing software) Do a test on device. Does it work ? If so you might want to look at the additional software that came with hardware and decide whether or not you want to use the software (re. picture editing software)

40 Making Peripheral device work on a network Change Users by going into Control Panel | Peripheral Device | Right Click Peripheral Device | Sharing. Change Users by going into Control Panel | Peripheral Device | Right Click Peripheral Device | Sharing. Set users to desired permission. Set users to desired permission.

41 Add Device to Workstations If peripheral device is connected to Network and is to be used on individual terminals go to individual terminals and add device. (might require installing driver on individual terminal). If peripheral device is connected to Network and is to be used on individual terminals go to individual terminals and add device. (might require installing driver on individual terminal).

42 Troubleshooting a Peripheral Device 1. Make sure the peripheral device is plugged in/turned on 2. Can you use the peripheral device from other programs (re. if stuff is not being printed from Internet Explorer but is from Notepad it might be the program settings) 3. Check ink/light bulb/battery. Do any of these need replacing? If one of these are out sometimes a peripheral device will not work 4. Can you print a test page (usually printers have a button that can do test printers). if it does print a test page it might be an idea to check connections again (push them all in) or it might be a setup problem.

43 Troubleshooting Contd Troubleshooting System Setup Problems 5. On the computer you are sending output from Go to Control Panel | Printers and Faxes (or other peripheral device you are having trouble with); is the printer/device installed/added to your computer? If not you have to use the add a … option 6. Check on the Port options to make sure that correct port is selected

44 User Setting 7. Is the user given permission to use the device? If not they should be added by selecting the user sending item to printer.

45 The Last Resorts 8. Try peripheral device on another computer. Does it work. If so the driver for the device might have been erased or needs to be reconfigured on the computer. Can you just use the device from the computer that it the device works on or not? 9. /call manufacturer. Some companies provide better service than others; some will only speak to you if you have a warranty or only answer via 10. If manufacturer is not helpful you might want to get assistance from 3rd party or just buy a new device (new printer $ about equal to 2 hours of a service call $160)

46 A True Story 1. Did the trouble shooting procedure 3 times (step 7 through 9) each time with more and more colorful language 2. Finally called unnamed printer company (starts with E and ends with N) 3. When I went to send something to the printer (to get the error message for the printer manufacturer); it finally worked.

47 3 Lessons I learned after this experience Lesson 1: sometimes stuff happens without a logical explanation (it is not your fault and out of your control) Lesson 2: Colorful language will not repair your computer but you will feel better Lesson 3: Computers are like having a compact, silicon version of Gary Busey on your desk – you never know what is going to happen – Bill Maher

48 Fun with Windows (Formatting a Floppy or Flash Storage) 1. Insert disk or stick 2. Go into My Computer and find the drive that is labeled to the desired drive 3. Right click on the drive | Format 4. Select quick format Note: CD/DVDs do not require formatting

49 THANK YOU ! ! ! MUHAMMAD AHMED HUSSAIN / yahoo / homail.com


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