This document provides an overview of the key components of a typical desktop computer system, including the keyboard, monitor, CD/DVD drive, hard disk, RAM, motherboard, CPU, and optional components like a scanner. It describes the basic functions and specifications of these components.

1. Keyboard
PS/2
USB USB
Monitor
15 17, 19, 20, 21,
24 CRT
17
15

2. 15
Resolution
CASE
Power
Supply

3. mouse)
Pointing
Device
PS/2
(
USB
CD-ROM / CD-RW / DVD

4. (CD-RW)
Audio CD) Photo CD) Video
CD)
CD-
RW DVD DVD
Combo
Drive DVD CD-
RW
X 8X, 40X,
50X CD-RW
24/10/40X CD-R
CD-
RW

5. Power Supply
450

6. Microprocessor / CPU (Central Processing Unit)
AMD, Intel, PowerPC,
Sparc, Cyrik
Clock
Speed) Pentium 4 1.6 Pentium 4
3.0
Intel
Pentium Celeron AMD AMD
Athlon XP, AMD Duron

7. Mobile CPU)
RAM)

8. DRAM, DDRRAM, SDRAM,
RDRAM, FlashRAM, VRAM
MSI MS6373 3DDR
DIMM
DDR

9. Hard Disk)
1. IDE 2.
SCSI (
IDE
SCSI
120
GB 7200 rpm (

10. Main Board)
ASUS, ECS, GIGABYTE,
CHAINTECH, MSI, ABIT, INTEL

11. DISK Drive
3.5
3.5
(
FDD Connector
Scanner)

12. Bar
Code)
3
1. flatbed scanner)
2. Sheet-fed scanner)
3.
1. (Flatbed scanner)
1/90,000
Optical Character Recognition
software)

13. A-D:Analog-to-Digital
Converter)
3
2. sheet-fed scanner)
3.

14. 1