1 pc maintenance training. 2 after completing this lesson, you will know: computer hardware...
TRANSCRIPT
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PC Maintenance Training
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After completing this lesson, you will know:
• Computer hardware familiarization
• Assemble a computer system including installation of the motherboard, floppy and hard drives, CD-ROM, and video cards
• Install and manage Windows XP operating system and Microsoft Office 2003
• Add peripherals and multimedia capabilities
• Basic Troubleshooting & Maintenance
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Computer
• is a machine for manipulating data according to a list of instructions or programs
http://en.wikipedia.org/wiki/Computer
• Collects, processes, stores and output information
http://www.answers.com/topic/computer-1?cat=biz-fin
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So why use a computer?• Work faster & be more precise.• Use the same piece of information again in
different documents.• Make calculations without errors and correct
spelling mistakes.• Present more professional looking work.• Make as many copies and different versions of
electronic documents as you like.• Store and keep track of your (electronic)
documents.• Send (electronic) mail and documents to
distant relatives and business relations within a matter of minutes.
• Find information you need, available on one of the millions of computers worldwide that are connected to the Internet.
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Computer System• Computer Case – contains all the major
components• Monitor – is a device that display text &
images generated by the computer• Printer – is a device that produces a copy
of documents you create• Keyboard – is device that lets you type
information & instruction into a computer• Mouse –is a hand held device that lets you
select and move items on the screen• Speaker – lets you hear sound generated
by your sound card
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What’s inside a computer?
• Processor/CPU
• Motherboard
• RAM (Random Access Memory)
• Hard disk drive
• Video card
• Audio
• Power supply
• Floppy drive
• Networking
• CD-ROM Drive
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What’s inside of the Computer?• Processor – also
known as CPU or the Central Processing unit
Ex. Pentium 4 2.4Ghz 400MHzProcessor Type – Pentium 4Clock Speed – 2.4 Ghz (speed at
which operations took place inside the CPU)
System Bus – 400Mhz (the speed at which RAM memory was accessed)
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What’s inside of the Computer?
• Motherboard – also known as the mainboard. It contains circuit that perform various functions.
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What’s inside of the Computer?
• Memory – is technically any form of electronic storage, it is used most often to identify fast, temporary forms of storage. Ex. RAM, ROM, Bios etc.
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What’s inside of the Computer?
• Hard disk drive – a fixed computer storage medium.
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What’s inside of the Computer?
• CD-ROM drive – Compact Disk/Read-Only Memory drive, a device that can read information from a CD-ROM.
http://www.webopedia.com/TERM/C/CD_ROM_player.html
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What’s inside of the Computer?
• Sound Card –is a computer expansion card that can input and output sound under control of computer programs.
http://en.wikipedia.org/wiki/Sound_card
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What’s inside of the Computer?
• Modem – The word "modem" is a contraction of the words modulator-demodulator. A modem is typically used to send digital data over a phone line.
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What’s inside of the Computer?
• Network Interface Card –also known as LAN card. A PC interface to network cabling. It is a piece of computer hardware designed to allow computers to communicate over a computer network
http://en.wikipedia.org/wiki/Network_card
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What’s inside of the Computer?
• Power supply –changes the alternating current (AC) that comes from an outlet to the direct current (DC) that a computer can use.
• Note: the capacity of power is measured in watts.
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What’s inside of the Computer?
• Floppy drive –stores and retrieves information on floppy disk
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Proverbs
“A journey of a thousand miles began with a single step .”
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Assembly & Disassembly of PC
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Step 1- Ground yourself by touching the metal chassis
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Sample Motherboard
battery IDE connectors Power connectors
RAM slots
PCI slots AGP slots Built-in ports CPU socket
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CPU ready for insertion in the ZIP socket
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Connecting CPU fan to the Motherboard
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Aligning memory module with a RAM socket
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Motherboard ready to install into the case.
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ATX motherboard is installed
Keyboard/mouse
Serial port
USB
Parallel port
Ethernet port
firewire
Audio port
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ATX motherboard is installed
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ATX motherboard power cable
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Connecting LED & button cables
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Fixing AGP video card in place
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Connecting IDE cables
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Installing an internal device
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Attaching an internal device to the drive cage with screw
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Connecting the IDE cable to the back of internal device
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Connecting the power connector
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CPU case with a clear side panel
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Software Installation
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The Operating System
• The program that controls the operations of the computer’s hardware
• Controls the allocation and use of:1. computer memory
2. CPU (central processing unit) time
3. disk space
4. peripheral devices
• The foundation program on which all software applications depend
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Windows XP Desktop
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E-Mail and Calendaring Software
(continued)
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Word Processing Software
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Spreadsheet Software
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Presentation Software
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Database Software
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Troubleshooting & Diagnostics
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Troubleshooting & Diagnostics
• Trouble: Start up problems1. No power
2. Fan is not running
3. No LED
• Cause: 1. Power cord/bad power outlet
2. AVR or UPS not power on
3. Power supply
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Troubleshooting & Diagnostics
• Possible Solution:1. Try another cord /outlet
2. Turn on the AVR or UPS
3. Replace power supply
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Troubleshooting & Diagnostics
• Trouble: Display Problem1. The PC is turned on but the display isn’t
working
• Cause: 1. Power cord is unplugged from the outlet or from
the PC2. Display power switch is turned OFF3. Video cable is unplugged to the PC4. Video card problem/board problem (if on board)
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Troubleshooting & Diagnostics
• Possible Solution:1. Plug the power cord to the outlet or PC
2. Turn on display power switch
3. Plug video cable
4. Replace video card/board
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Troubleshooting & Diagnostics• Trouble: Mouse problem
1. The mouse does not respond at all
2. The mouse moves poorly
• Cause: 1. The mouse is not properly plugged in
2. Dirt on the rollers or the ball
3. Defective mouse
4. Defective mouse port (serial/ps2)
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Troubleshooting & Diagnostics
• Possible Solution:1. Plug the mouse properly
2. Turn the mouse upside down. Rotate the little door to allow the ball to drop out. Rub the ball to clean it, and scrape the rollers to get the dirt away.
3. Replace mouse (PS/2) or USB if problem with port.
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Troubleshooting & Diagnostics
• Trouble: Keyboard problem1. Keyboard does not respond
• Cause: 1. Keyboard is not connected
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Troubleshooting & Diagnostics
• Possible Solution:1. Try plugging again.
2. Replace keyboard (PS/2) or USB if problem with port.
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Troubleshooting & Diagnostics
• Trouble: Hard disk problem1. Hard disk not detected
2. Hard disk error
• Cause: 1. Loose cable or no power
2. Bad block/sector
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Troubleshooting & Diagnostics• Possible Solution:
1. Secure data connector/power connector
2. Replace HDD
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Troubleshooting & Diagnostics
• Trouble: Audio problem1. No sound heard from audio
• Cause: 1. Volume control
2. Device driver not installed properly
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Troubleshooting & Diagnostics• Possible Solution:
1. Check the volume control
2. check the audio cable
3. Reinstall device driver
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Troubleshooting & Diagnostics• User problem:
1. Powering off without properly shutdown the computer
2. Placing water, sodas, or any liquids on the top of CPU
3. Installing unnecessary application and highly graphical games that can hamper the CPU
4. Fixing the computer even no trouble detected 5. Removing cover of the unit/PCI slots that
exposes the CPU to insects and rats.
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Preventive Maintenance
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PC Maintenance
• Using Scandisk (Win9X/ME) & CHKDSK (Win 2K/WinXP)
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PC Maintenance• Using Scandisk (Win9X/ME) & CHKDSK (Win
2K/WinXP)• Scandisk/CHKDSK performs the following task:
1. Check the disk surface of the specified drive for read errors
2. Repairs problems with the logical disk structure3. Provides disk usage statistics at the end of its operation
• Open the Windows Explorer/My Computer1. Right Click a drive, select Properties, and then click the
Tools tab.2. Click Check Now to start the process
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PC Maintenance
• Using Defrag
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PC Maintenance
• Using Defragment - Speed up the system performance of your computer during reading & saving files.
• Open the Windows Explorer/My Computer
1. Right Click a drive, select Properties, and then click the Tools tab.
2. Click Defragment Now
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PC Maintenance
• Disk Cleanup
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Q & A
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Q & A
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Chinese Proverbs
“Give a man a fish and you feed him for a day. Teach a man to fish and you feed him for a lifetime.”
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Tech Support
PETE RABAGO
Email: [email protected]
YM : myyouthtech Skype: petedrabago Tel: 02-7521187/0917881-8312
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Tech Support
JEROME BLANCO
Email: [email protected]
YM : [email protected] Skype: Tel: 02-7521187/0917881-8313