COLLEGE OF COMPUTING STUDIES
Bachelor of Science in Information Technology
DHVSU Main Campus, Villa de Bacolor, Pampanga
CC 113A – Introduction to Computing Page 1 of 3
Chapter 4: System Software
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and exclusive only for the
Introduction to Computing subject
of 1styear BSIT students of Don Honorio Ventura State University-Main Campus-CCS. Any reproduction of this material whether thru a
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DON HONORIO VENTURA STATE UNIVERSITY
Chapter 4 - System Software
Learning Objectives:
1.
Understand the importance of a software particularly the system software.
2.
Learn the different types of system software.
3.
Identify the importance, types and components of the operating system.
Summary:
What is Software?
- A computer without software is useless. It provides the commands that tell the hardware what tasks to
perform, what to read and write, how to send the output to a monitor and/or printer.
Software Categories
A.
Shareware
- Software developed and released as demonstration versions of their commercial product. Each demonstration
copy has an expiration date which gives the user ample time to evaluate and decide whether to purchase the
product or not.
B.
Commercial software
– comes prepackaged and is available from software vendors. This must be purchased.
C.
Open source software
- Created by groups of generous programmers and released to the public domain for free and for public use.
System software
- System software performs basic computing functions, including starting your computer and loading the
operating system, which provides the interface between you and the machine. It also provides tools for
configuring and maintaining your computer system and managing programs and files.
- includes your operating system and several types of utility software.
Types of System Software
System control program – they control the execution of programs
Operating system – a set of programs which contr ols and coordinates the whole operation of
the computer system.
Device drivers – device drivers are system programs which are responsible for proper functioning
of device.
System support program – they provide routine service function to other computer programs and users.
Utility programs – these are small programs that perform many of the general housekeeping
tasks for the computer, such as system maintenance and file compression.
Backup Utilities – these utility programs helps us to backup of our important data.
Data recovery software – sometimes an illegal operation may result in an accidental loss of data
which was still to be needed then we used data recovery software. Such the recycle bin.
Compression utilities – compression utility are used to compress large sized files so that they
can be stored in storage of low capacity. Win-zip is a popular compression utility used in window
based desktops.
Anti-virus utility – any program that affects the normal working of the other programs or effects
that the boot sector of the disk is a virus. The anti-virus software detects the virus identity and
prevents it from spreading.
System development programs – they assists in the creation of computer programs.
