Hardware

Introduction

  • Hardware is considered as the first part of computer. 
  • Hardware does all the physical work a computer with the help of software.

Definition

  • Hardware refers to all the visible components of the computer system.
  • The physical components of a computer which can be seen and touched are known as hardware of a computer system.
  • Hardware is just a collection of circuits and pieces of plastic and metal.

Features

  • The computer hardware is essentially a piece of complex electronics that understands only 1‘s and 0‘s i.e. electrical on or off conditions. Hence, the instructions to perform a task must be written in a series of binary 1‘s and 0‘s. 
  • Hardware is an essential component of any computer system.
  • Hardware components are the building block of a computer.
  • Example of Hardware are –  keyboard, monitor, hard disk, printer, scanner, processing unit, memory, electrical connections etc.

Software

Introduction

  • The software enables a computer to perform all the useful and desired functions.
  • Different types of software help a computer to be used for multiple and varied purposes, in totally different areas of work.
  • Software is the second part of computer after hardware.
  • It is the software that enables a computer to perform all the useful and desired functions.
  • Different types of software help a computer to be used for multiple and varied purposes, in totally different areas of work.
  • Computer Programs – 
    • Programs are a set of instructions written in certain programming language to solve a problem.
    • To solve a given problem, we write various programs in different programming languages.

Definition

  • Software is a set of simple and step-by-step sequence of instructions that tell the hardware what to do and how to do it.
  • Software is organized set of instructions written in a defined order and to accomplish a specific task is called Computer Software.
  • A set of related and organised computer programs are collectively known as Software.

Features   

  • A computer software provides intelligence to the hardware, which otherwise is just a collection of circuits and pieces of plastic and metal.
  • A computer programmer writes the software in a particular programming language that gives a computer the ability to solve any business or scientific problem.
  • A programmer codes the program in the English like programming language which is easier to understand. This program is then translated into machine code by another computer program. This translated program, called the software is eventually executed to achieve the desired goal.
  • Software is an integral component of a computer system.
  • It is the software which directs a computer to do a specific task.

Evolution of Software

     

Software Licensing

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