Hardware

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

CPU Registers

Central Processing Unit (CPU).

Registers are high-speed small-size storage locations within the CPU. Main ones are:

- Program Counter (PC): It stores the memory address of the next program instruction to be executed.

- Instruction Register (IR): It stores the program instruction to be executed (interpreted).

- Memory Address Register (MAR): It stores the address of the memory location to be accessed.

- Memory Data Register (MDR): It stores the data just read from or to be written to memory.

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