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Introduction To Computer Hardware

We are going to start from the basic and develop on that. These are going to help you understand computer hardware. With all these you ought to have basic skills on computer hardware which will help if you want to take up networking career.

When we say computer hardware we are referring to the physical parts of the computer like the monitor, the mouse, scanner, printer, speakers, keyboard, hard drive and more.

Definition of Computer

Computer is an electronic device which stores, reads, and processes data or information to produce a meaningful result.

Some Characteristics of a Computer

Speed – The computer speed is faster is usually measured in time units of access time.

Time:-
Millisecond [1ms] ——– A thousand of seconds (
10-3)
Micro Seconds [1┬Ás] —– A millionth of seconds (10-6)
Nano Seconds [1ns] —– A thousand millionth of seconds (
10-9)
Pico Seconds [1ps] —— A millionth of seconds (
10-12)

Storage – The computer can store large volumes of information, the storage capacity applies to both the primary and secondary storage. It is measured in Byte, Kilobyte (kB), Mega Byte (MB), Giga Byte (GB) and Tera Byte (TB).

Computer Software

Software is used or associated with and usually contrasted with hardware as the entire set of programs, procedures, and related documentation associated with a system and especially a computer system.

Read: Computer Components

The two types of software found in every computer are
1. Operating System (OS) – is the program that, after being initially loaded into the computer by a boot program, manages all the other programs on the computer.
2. Application Programs – are loaded and run on top of the OS.

The Computer Hardware

The hardware of a computer comprises the Electronic, Electrical and Mechanical components of the machine. The physical parts, which can be seen, touched and felt.

The Basic Components of Computer
=> Processor
=> Hard Disk
=> RAM
=> Keyboard
=> Drives – Hard Disk, CD-ROM
=> Mouse

Optional Components
=> Printer
=> Scanner
=> Modem
=> Speaker

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