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Computer Software

NIOS · Class 12 · Computer Science

Complete topic list for Computer Software in NIOS Class 12 Computer Science. Key concepts, sub-topics, and what to focus on for board exams.

43 questions25 flashcards5 concepts

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4 Topics · NIOS Class 12 Computer Science

Topics in Computer Software

1

What is Software?

  • Software is a complete set of instructions written to solve a problem on a computer.
  • Software causes the hardware to function in the desired manner.
  • Without software, hardware cannot perform any calculation, comparison, or manipulation.
2

System Software

  • System software consists of pre-written programs supplied by the manufacturer with the computer.
  • Primary objectives: (1) enhance efficiency of hardware utilisation, (2) make computers simple to use.
  • Main components: Operating System, Language Translators (Compilers/Interpreters), Utilities.
3

Application Software

  • Application software is written to perform a specific task or process (e.g., accounting, payroll, mailing lists).
  • Most application software is written in high-level languages.
  • Three sources of application software: (1) Write it yourself, (2) General-purpose packages, (3) Customised software.
4

Computer Languages

  • A programming language is a set of rules that provides a way of instructing a computer to perform operations.
  • Languages are lower (closer to machine, i.e., 0s and 1s) or higher (closer to human language).
  • Three main categories: Machine Language, Assembly Language, High-Level Language.

Key Concepts

A complete set of instructions writtenGeneral programs written for a computerThe most important system softwarePrograms written to perform specific tasksThe only language that computers directly

Frequently Asked Questions

What are the important topics in Computer Software for NIOS Class 12 Computer Science?
Key topics in Computer Software include Computer Software – Chapter Overview Mind Map, Computer Software Hierarchy and Classification, Computer Software – Complete Chapter Overview. These are the concepts NIOS Class 12 examiners draw on most — study them first, then practise related questions.
How to score full marks in Computer Software — NIOS Class 12 Computer Science?
Understand the core concepts first, then work through the 43 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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All 29 chapters — NIOS Class 12 Computer Science Syllabus

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