computer hardware instalation
Computer Hardware Installation & Maintenance Terminology: Computers process Data: Data may be Letters, Pictures or Music etc: Information inside a computer is a series of Electrical Signals: The smallest piece of Data a computer handles is a Binary Digit or (bit): A bit is represented by a small b: And is either a 0 or a 1: A group of 8 bits is known as a Byte, and is represented by a capital B: Some characteristics of a computer are measured in bits e. ... A Computer System: Write Read Input: - Keyboard, Mouse, Camera, CD Rom, Scanner: Output: - VDU Monitor, Printer, Speakers: Backing Storage: - Hard Drive, Floppy Disc, Tape Drive, R-W CD, Large Capacity Removables: System Unit: - Chassis (case), Motherboard, Processor (CPU), Memory (aka Ram), Cards (Video, Sound, Network etc), Ports (allow connection to the Outside world), Power Supply (converts mains voltage to a level Usable by the PC): Power Supplies: Every computer requires a power supply. ... A good quality, reliable, power supply is the key to a computer’s reliability. ... AMD’s products include 80286 80486 Pentium = K5 PII = K6 Celeron = DURON PIII & PIV = ATHALON OPTERON (Server Processor) Exercise:- Dismantle computer tower with a view to putting it back together in the Future. ... Description AKA Devices 6 pin mini din (F) PS/2 Mouse, Keyboard 2 row 9 pin (M) connector Serial Port Mouse, External Modem 25 pin (M) D connector Serial Port Mouse, External Modem 25 pin (F) D connector Parallel Port Printer, Scanner, External HD 3 row 15 pin (F) connector VGA (Graphics Port) Monitor, LCD Panel 4mm by 10mm (F) connector USB Almost Everything 3 * mini Sound I/O Speakers, Microphone 2 row 15 pin D connector Sound I/O Joystick RJ 45 Network I/O Network Card On our AXT Mouse, Keyboard 6pin mini Din (2 off) Printer, Scanner 25 Pin (F) D Connector Mouse, External Modem 9pin (M) D Connector Joy Stick 15pin 2 Row D Connector (F) USB 4mm by 10mm (F) Connector (2off) Speakers, Microphone Mini Jack (2 off) *Never move a computer within 2 minutes of switching off as Hard Discs are still spinning, and movement may cause Read/Write head to scrape against moving Disc Black White Brown Expansion Slots ISA PCI AGP BIOS/CMOS Bios:- Basic input/output system- Bios checks functionality of inputs (through keyboard) and output (monitor). ... Computer will look for Operating system, and when it finds none, choose a. ... To access Disk Administrator in Windows 2000, go to Start/Control Panel/Administrative Tools/Computer Management. To access the Disk Administrator in Windows XP, go to Start/Control Panel/Performance and Maintenance/Administrative Tools/Computer Management. Under the Computer Management/Storage tree there will be an entry for Disk Management. ... To do this click on the Services and Applications entry in Computer Management and make sure that status of both the Logical Disk Manager entries are Started. Deleting an NTFS Partition If you use Windows 2000 or XP then you can delete the drive in the Disk Management service of Computer Management. ... Select a drive in Windows Explorer or My Computer and click the Format command in the file menu. ... Computer says keyboard not present press F1.