Skip to content
01 - Introduction to Computers

Introduction to Computers

Data & Information

  • The collection of raw facts and figures is called Data.
  • The processed data is called Information.

Data Processing

  • The process of converting data into information by processing it is called data processing.
  • Anything that processes data is called Processor.
  • The basic steps of data processing are:
    • Input (Data)
    • Process
    • Output (Information)

Computer

  • A machine that can be programmed to except data, process it, output the information & store it for later use.
  • Primary Components of Computer:
    • Input Device: A device that is used to input data to the computer.
    • Output Device: A device used to display output of processing
    • Processing Device: A device used to process data.
    • Storage Device: A device that holds data is called storage device.

Information Technology

  • A technology that uses computing with high speed communication links to spread information from one place to another.
  • Merging of various industries electronically is called Digital Convergence.

Software

  • A set of instruction given to the computer to perform a specific task is called Software.
  • There are two types of Software:
    • System Software
    • Application Software

System Software

  • It is a type of software which has direct concerns with computer hardware.
  • A few types of System software are given below:
    • Operating Systems: Manages computer hardware and software resources and provides common services for computer programs.
    • Device Drivers: Operates or controls a particular type of device that is attached to a computer.
    • Utility Software: Designed to help analyze, configure, optimize or maintain a computer.

Application Software

  • It is a type of that is designed to perform a group of coordinated functions, tasks, or activities for the benefit of the user.
  • Following are few types of application software:
    • Customization Software: Designed for particular customer or Organization.
    • Package Software: Developed for general public.

Comments