MT1: UNIT 3 MULTIMEDIA SOFTWARE-Introduction to Multimedia Technology

Computer software, or just software, is a collection of computer programs and related data that provide the instructions telling a computer what to do and how to do it. Software is, in a way invisible, and therefore not recognized as important in an electronic imaging system. Software is just as important as hardware, however, because the hardware will not function without it. The "brains" of the system, software includes the instructions, procedures, and system supervisor in an electronic form. 2.0 OBJECTIVES By the end of this unit, you should be able to: ·Explain what software is State the significance of software in the multimedia system List the functions of a Software

SOFTWARE

Software refers to one or more computer programs and data held in the storage of the computer for some purposes. In other words software is a set of programs, procedures, algorithms and its documentation. Program software performs the function of the program it implements, either by directly providing instructions to the computer hardware or by serving as input to another piece of software. The term was coined to contrast the old term hardware (meaning physical devices).

Software performs the following functions:

Interfaces between the operator, peripheral components, and the control computer’s processor

Regulates the flow of information among the components and the central processing unit

Translates commands from the operator into specific hardware instructions

Allocates hardware resources for specific tasks

Indexes and cross-references

Produces workflow scripts for routing, document flow, and processing

Provides administration, statistics, and reports

CLASSES OF SOFTWARES

Practical computer systems divide software systems into three major classes system software, programming software and application software, although the distinction is arbitrary, and often blurred.

3.2.1 SYSTEM SOFTWARE

System software provides the basic functions for computer usage and helps run the computer hardware and system. It includes a combination of the following:

Device drivers

Operating systems

Servers

Utilities

Window systems

System software is responsible for managing a variety of independent hardware components, so that they can work together harmoniously. Its purpose is to unburden the application software programmer from the often complex details of the particular computer being used, including such accessories as communications devices, printers, device readers, displays and keyboards, and also to partition the computer’s resources such as memory and processor time in a safe and stable manner.

3.2.2 PROGRAMMING SOFTWARE

Programming software usually provides tools to assist a programmer in writing computer programs, and software using different programming languages in a more convenient way. The tools include:

Compilers

Debuggers

Interpreters

Linkers

Text editors

An Integrated development environment (IDE) is a single application that attempts to manage all these functions.

3.3.3 APPLICATION SOFTWARE

Application software is developed to aid in any task that benefits from computation. It is a broad category, and encompasses software of many kinds, including the internet browser being used to display this page. This category includes:

  • Business software
  • Databases
  • Decision making software
  • Educational software
  • Image editing
  • Industrial automation
  • Mathematical softwareMedical software
  • Molecular modelling software
  • Quantum chemistry and solid state physics software
  • Simulation software
  • Spreadsheets
  • Telecommunications (i.e., the Internet and everything that flows on it)
  • Video games
  • Word processinge

SELF ASSESSMENT EXERCISE

What is the significance of software in a multimedia computer system?

4.0 CONCLUSION

Software is in a way invisible, and therefore not recognized as important in an electronic imaging system. Software is just as important as hardware, however, because the hardware will not function without it. The “brains” of the system, software includes the instructions, procedures, and system supervisor in an electronic form.

5.0 SUMMARY

In this unit, we considered the Software system. We equally looked at some functions of multimedia software .We also discovered that computer systems divide software systems into three major classes system software, programming software and application software.

6.0 TUTOR MARKED ASSIGNMENT

1). Explain the term “software”

2). Describe the different feature of the different classes of Software.

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CIT 463    INTRODUCTION TO MULTIMEDIA TECHNOLOGY

3). Discuss the functions of system software

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