2. COMPUTER SOFTWARE
• Computer Software.
• Software or program, enables
computer to perform specific
tasks as opposed to the physical components of the system
(hardware).
3. OPERATING SYSTEM
• An operating system (OS) is a computer program that manages the hardware
and software resources of a computer.
• At the foundation of all system software, an operating system performs basic
tasks such as controlling and allocating memory, prioritizing system requests,
controlling input and output devices, facilitating networking, and managing
files. • It also may provide a graphical user interface for higher level functions. It
forms a platform for other software
Examples :
1. Linux
2. Microsoft Window Vista
3. Red Hat
4. UTILITIES SOFTWARE
• Utility software (also known as service program, service routine, tool,
or utility routine) is a type of computer software.
• It is specifically designed to help manage and tune the computer
hardware, operating system or application software, and perform a
single task or a small range of tasks; as opposed to application software
which tend to be software suites.
• Utility software has long been integrated into most major operating
systems.
Example:
1. Disk defragmenters
2. System Profilers
3. Virus scanners
5. APPLICATION SOFTWARE
• Application software is a subclass of computer software that employs
the capabilities of a computer directly to a task that the user wishes to
perform.
• This should be contrasted with system software which is involved in
integrating a computer’s various capabilities, but typically does not
directly apply them in the performance of tasks that benefit the user.
Examples :
Microsoft Office
Open office
