Module 1: Concepts of information Technology Main Parts of a Personal Computer
Feb 16, 2016
Module 1: Concepts of information Technology
Main Parts of a PersonalComputer
Central processing unit (CPU)
Hard disk
Common input and output devices
Types of memory
Main Parts of a personalcomputer
The CPU (central processing unit) is the part of a computer controls the interpretation and execution of in-
structions.
Definition of CPU
Intel® Pentium® Processor E6300 (2M Cache, 2.80
GHz, 1066 MHz FSB)
CPU stands for Central Processing Unit. Its job is to process the instructions contained within com-
puter programs.
What Does CPU Stand for
Feature :CPU chips are generally very small and very
thin
Type:The primary
manufacturers of CPUs for personal
computers are Intel and Advanced
Micro Devices (AMD).
Function :A microprocessor chip is a small piece of silicon containing thousands
In a personal computer, a hard disk drive (HDD) is the mechanism.
controls the positioning, reading, and writing of the hard disk
There are 2 types of hard disk.
Definition of Hard disk
HDD : Samsung 320GB SATA2 7200RPM 16M
Hard disk driveA hard drive is made up of 2
to 5 magnetic disks, each measuring at around 2.5 inches in diameter. It also
has a motor, spindles, heads, controllers and an
actuator. All the components are encased in metal.
This hard drive is located in computer, so we can’t bring to
outside, but it is safe.
One of the advantages is
that this type of hard drive
contains many GB, such as 1 TB.
Portable Hard DiskA hard drive is made up of 2 to 5 magnetic disks, each measuring at around 2.5 inches in diameter.
It also has a motor, spindles, heads, controllers and an
actuator. All the components are encased in metal.
There are many types of portable hard disks, which
are 120GB, 160GB, 320 GB, 500 GB, and etc.
Portable Hard Disk’s advantages are that we can carry it easily, and it
contains lots of GB. However, they are easy to
broken.
Input devices
An input device is anything that puts information
inside a computer
Output device
An output device takes
information form a computer
and we can see it.
Types of memory
RAMRAM or Random Access Memory is volatile memory that is erased when the power goes off. Program instructions and data held in RAM can be accessed and saved much more quickly than that held in permanent storage.
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