Introduction to Computer

 

   

What are computers?

    We are living in an information age dependent upon digital information.Digital information is electronic information, the result of computer processing.Every type of job relies upon getting information, using it, managing it,and relaying information to others. Computers enable the efficient processing and storage of information.

 

    Computers are electronic machines that perform tasks or calculations according to a set of instructions, or programs. Computers work through an interaction of hardware and software.

  

    Hardware refers to the parts of a computer that you can see and touch.Hardware items such as your monitor, keyboard, mouse, printer, and other items are often called hardware devices, or devices.

 

    Software refers to the instructions, or programs, that tell the hardware what to do. The operating system (OS) is software that manages your computer and the devices connected to it.

 

Introduction TO IT by Ms.S.Ramya & ms.M.Naga sankari

  • Operations

    The four main operations of computer are Input, Output, Processing And Storage… Read more »

  • Generations

    The Five generations of computers are as follows… Read more »

  • Parts

    The four main components of computers are ALU, CU, MU and I/O…… Read more »

  • Memory

    The working place in computer where all data is stored is called memory.… Read more »

  • Software

    Software represents the set of programs that govern the operation of a computer system and make the hardware run… Read more »

  • Networks

    A network consists of two or more computers that are linked in order to share resources, exchange files, or allow electronic communications.… Read more »