System software consists of the programs that control or maintain the operations of the
computer and its devices
There are two
types of system software :-
- · Operating system - An operating system (OS) is a set of programs containing instructions that work together to coordinate all the activities among computer hardware resources.
- Utility program –
The process of starting or restarting a
computer is called booting. There are
two methods of booting :-
- · Cold boot – turning on computer that has been power off completely.
- Warm boot – using the operating system to restart computer
How an
operating system handles programs diresctly affect your productivity –
- · Single user and multiuser
- · Single tasking and multi tasking
- · Foreground and back ground
- · Preemptive multitasking
- · Multi processing
An embedded operating system resides on a
ROM chip on a mobile device or consumer electronic device.
A utility
program is a type of system software that allows a user to perform
maintenance-type tasks.
A file manager is a
utility that performs functions related to file management –
- · Displaying a list of files
- · Organizing files in folders
- · Copying, renaming, deleting, moving, and sorting files and folders
- · Creating shortcuts.
An image
viewer allows users to display, copy, and print the contents of a
graphics file.
An uninstaller
removes a program, as well as any associated entries in the system files.
A disk
defragmenter reorganizes the files and unused space on a computer’s hard
disk so that the operating system accesses data more quickly and programs run
faster.
A backup utility allows users to copy
files to another storage medium.
A restore utility reverses the process
and returns backed up files to their original form.
A screen saver causes a
display device’s screen to show a moving image or blank screen if no activity
occurs for a specified time.
A personal
firewall detects and protects a personal computer from unauthorized
intrusions.
No comments:
Post a Comment