03-01-2013, 04:21 PM
Introduction to Computer Administration
1Introduction to Computer.ppt (Size: 443 KB / Downloads: 115)
Parts of the Computer System
Hardware
Mechanical devices in the computer
Anything that can be touched
Software
Tell the computer what to do
Also called a program
Thousands of programs exist
Data
Pieces of information
Computer organize and present data
Users
People operating the computer
Most important part
Tell the computer what to do
Essential Computer Hardware
Processing devices
Brains of the computer
Carries out instructions from the program
Manipulate the data
Most computers have multiple processors
Central Processing Unit (CPU)
Secondary processors
Processors made of silicon and copper
Software Runs The Machine
Tells the computer what to do
Reason people purchase computers
Two types
System software
Application software
Computer users
Role depends on ability
Setup the system
Install software
Mange files
Maintain the system
“Userless” computers
Run with no user input
Automated systems