Hardware

عربي

Mark

Scores

Hardware

1	Computer Hardware
2	Computer Architecture Principles
3	Central Processing Unit (CPU)
4	Arithmetic and Logic Unit (ALU)
5	Control Unit (CU)
6	CPU Registers
7	Program Execution
8	Microprocessor Chips
9	CPU Speed
10	CPU Local Bus
11	Memory (Primary Storage Device)
12	Random Access Memory (RAM)
13	Memory Modules
14	Special Memory Devices
15	Cache
16	Read-Only Memory (ROM)
17	Buses
18	Boards and Ports
19	Secondary Storage Devices
20	Floppy-Diskette Drive (FDD)
21	Floppy-Diskette Drive: Properties
22	Floppy Diskette: Capacity Calculation
23	Hard-Disk Drive (HDD)
24	Compact-Disk (CD) Drives
25	Compact Disk-Read Only Memory (CD-ROM) Drive
26	Compact Disk-Recordable (CD-R) Drive
27	Compact Disk-ReWritable (CD-RW) Drive
28	Digital-Versatile-Disk (DVD) Drive
29	Computer Peripherals
30	Keyboard
31	Mouse
32	Mouse: Internal Work
33	Mouse: Connecting to Computer
34	Trackball, Joystick, Pointing Stick
35	Scanner
36	Monitor
37	Cathode-Ray Tube (CRT) Monitor
38	Liquid-Crystal Display (LCD) Monitor
39	Video Cards (Display Adapters)
40	Printers
41	Dot-Matrix Printer
42	Inkjet Printer
43	Laser Printer
44	Plotter
45	Speaker and Microphone

Secondary Storage Devices

Memory is volatile meaning that its contents are lost when the computer is shut down or when power goes off. It is referred to as the computer’s primary storage device, since secondary storage devices are hence needed to store data and programs for future use. Secondary storage devices are classified as:

- Magnetic: Operation of these devices involves the use of magnetic fields. Examples of magnetic devices are floppy-diskette drives (FDDs) and hard-disk drives (HDDs).

- Optical: Operation of these devices involves the use of laser light. Laser light differs from normal light in many aspects. Main ones are being very strong, very tight, and very concentrated. Examples of optical devices are compact disk (CD) drives and digital versatile disk (DVD) drives.

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