Lecture Four
Software
• Instructions that tell the computer how to process data into the form
you want.
• Software and programs are interchangeable.
• Computer Instructions or data, anything that can be stored electronically
is Software.
1) System Software.
2) Application Software.
Two major types:
System software
System software is a term referring to any computer software which manages
and controls the hardware so that application software can perform a task.
Examples of system Software
◼ Operating System, compiler,
loader, linker, Interpreter.
Application software
Easy-to-use programs designed to perform specific tasks
Application Software includes programs that do real work for
user.
Common application software:
◼Microsoft Word
◼PowerPoint
◼Internet Explorer
◼Photoshop, Photo-Paint
Examples of Application Software
System software
Example : Windows
Application software
Example : Browsers
Micro office , itc
Hardware Computer
Example : keyboard ,
Monitor , CPU
Summary
Application Software : Apply to real-world tasks Solves user problems
System Software enables the application software to interact with the
computer hardware.
THE END
Lecture Four

All BAsic Of Ict