CIS-24 Home http://www.c-jump.com/CIS24/CIS24syllabus.htm

Computer Hardware

1. Computer Block Diagram
2. The Motherboard
3. Power Supply
4. Central Processing Unit
5. Basic Input/Output System
6. Main Memory
7. Secondary Storage
8. ATA/IDE Interface
9. IDE Hard Drives
10. SCSI Interface
11. SATA Interface
12. Removable Storage Devices
13. Peripheral Devices
14. The Bus
15. PC Interfaces
16. More PC Interfaces
17. Hardware Terms To Know

1. Computer Block Diagram

2. The Motherboard

3. Power Supply

4. Central Processing Unit

5. Basic Input/Output System

6. Main Memory

• Random Access Memory

  • Storage for data and instructions for executing programs (aka processes)

  • Common today to see 256 MB to 2 GB or more

  • Entire programs can be hidden, run as RAM-resident, and will disappear when the computer is powered down

• Cache memory

  • Very fast (expensive) memory to store most recently used data and instructions

  • Level 1 cache is internal to the CPU;

  • Level 2 cache is external;

  • Level 3 cache is on another chip

   

7. Secondary Storage

8. ATA/IDE Interface

9. IDE Hard Drives

10. SCSI Interface

11. SATA Interface

• Serial ATA Interface

   

   

12. Removable Storage Devices

13. Peripheral Devices

• Input/output devices

  • Keyboard, video monitor, mouse (KVM)

  • External storage devices

  • Printer, plotter, scanner

  • Game I/O devices, joystick

  • Network Interface Card (NIC)

   

14. The Bus

• The bus is used to carry information between the different components

  • Data and address bus are internal and parallel

  • Internal buses: ISA, EISA, MCA, PCI, VESA, PCMCIA, SCSI, IDE, EIDE, DMA/ATA, Serial ATA (SATA)

• External bus attaches the computer to external peripherals

  • Parallel bus: Centronix (printers)

  • Serial bus: EIA-RS-232, USB, IEEE 1394 (Firewire), V.35, RJ-11, RJ-45

   

15. PC Interfaces

16. More PC Interfaces

17. Hardware Terms To Know