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Introduction to Computer Software. S. Sabraz Nawaz, MCP Lecturer in MIT. In this lesson . After completing this lesson, you should have clear understanding on What is computer software System software Operating system and its functions Utility programs Language Translators.

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introduction to computer software

Introduction to Computer Software

S. Sabraz Nawaz, MCP

Lecturer in MIT

in this lesson
In this lesson
  • After completing this lesson, you should have clear understanding on
    • What is computer software
    • System software
      • Operating system and its functions
      • Utility programs
      • Language Translators

By: S. Sabraz Nawaz, Lecturer in MIT

computer software
Computer Software
  • A set of programs that are specifically written to provide the user a precise functionality like solving a specific problem is termed as a software package
  • Tells the computer what to do and how to do it.
      • instructs to display on the user’s screen
      • what kinds of input to take from the user
      • what kinds of output to generate.

By: S. Sabraz Nawaz, Lecturer in MIT

categories of software
Categories of Software
  • System software
  • Application software.

By: S. Sabraz Nawaz, Lecturer in MIT

system s oftware
System Software
  • Consists of several programs directly responsible for controlling, integrating, and managing the individual hardware components
    • Operating System
    • Utility Programs
    • Language Translators

By: S. Sabraz Nawaz, Lecturer in MIT

operating s ystem
OperatingSystem
  • A set of system programs that controls and coordinates the activities of the computer’s hardware and application.
  • The platform on which the application software operates
      • DOS (Disk Operating System), Windows 3.x, Windows 95, Windows NT, Windows 2000, Windows XP, Windows Vista, Mac OS, UNIX and LINUX

By: S. Sabraz Nawaz, Lecturer in MIT

functions of an operating system
Functions of an Operating System
  • Memory Management

By: S. Sabraz Nawaz, Lecturer in MIT

functions of an operating system1
Functions of an Operating System
  • Spooling Print Jobs

By: S. Sabraz Nawaz, Lecturer in MIT

functions of an operating system2
Functions of an Operating System
  • Configuring Devices

By: S. Sabraz Nawaz, Lecturer in MIT

functions of an operating system3
Functions of an Operating System
  • Monitoring System Performance

By: S. Sabraz Nawaz, Lecturer in MIT

functions of an operating system4
Functions of an Operating System
  • Administering Security

By: S. Sabraz Nawaz, Lecturer in MIT

functions of an operating system5
Functions of an Operating System
  • Managing Storage Media and Files

By: S. Sabraz Nawaz, Lecturer in MIT

functions of an operating system6
Functions of an Operating System
  • User Interface

By: S. Sabraz Nawaz, Lecturer in MIT

functions of an operating system user interface
Functions of an Operating System:User Interface
  • Command-driven:
    • you enter commands. You type keywords or special keys on the keyboard to enter data and instructions. Example: MS DOS.

By: S. Sabraz Nawaz, Lecturer in MIT

functions of an operating system user interface1
Functions of an Operating System:User Interface
  • Menu-driven:
    • you select command choices from various menus displayed on the screen. Example: Windows and Mac OS.

By: S. Sabraz Nawaz, Lecturer in MIT

functions of an operating system user interface2
FunctionsofanOperatingSystem:User Interface
  • Graphical (GUI):
    • use menus and visual images such as icons and buttons to issue commands

By: S. Sabraz Nawaz, Lecturer in MIT

utility programs
UtilityPrograms
  • system software used to perform maintenance-type tasks such as managing a computer, its devices and its programs
  • Most utility programs are included in the operating system

By: S. Sabraz Nawaz, Lecturer in MIT

utility programs1
Utility Programs
  • System Diagnostics

By: S. Sabraz Nawaz, Lecturer in MIT

utility programs2
Utility Programs
  • Backup Utility

By: S. Sabraz Nawaz, Lecturer in MIT

utility programs3
Utility Programs
  • Data Recovery Utility

By: S. Sabraz Nawaz, Lecturer in MIT

utility programs4
Utility Programs
  • Disk Defragmenter

By: S. Sabraz Nawaz, Lecturer in MIT

utility programs5
Utility Programs
  • Installer/Uninstaller

By: S. Sabraz Nawaz, Lecturer in MIT

utility programs6
Utility Programs
  • Disk Scanner

By: S. Sabraz Nawaz, Lecturer in MIT

utility programs7
Utility Programs
  • File Compression Utility

By: S. Sabraz Nawaz, Lecturer in MIT

utility programs8
Utility Programs
  • File Viewer

By: S. Sabraz Nawaz, Lecturer in MIT

utility programs9
Utility Programs
  • Antivirus Programs

By: S. Sabraz Nawaz, Lecturer in MIT

language translators
Language Translators
  • A language translator is a type of system software that translates a program in assembly or higher level language into machine language
    • Assemblers: is system software that translates the assembly language program into machine language
    • Compiler: a language translator that converts the entire program of a higher level language (source code) into machine language
    • Interpreter: a language translator that converts each high level language statement into machine language and executes it immediately statement by statement

By: S. Sabraz Nawaz, Lecturer in MIT

what we have covered
What we have covered
  • What is computer software
  • System software
    • Operating system
    • Utility programs
    • Language Translators

By: S. Sabraz Nawaz, Lecturer in MIT

doubt
Doubt?

By: S. Sabraz Nawaz, Lecturer in MIT

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