bvs

  Computer System   Computer system is an integration (combination) of hardware and software. From the physical aspect, a computer system consists of : a)      Input unit b)      Processing unit including main memory c)      Secondary storage d)      Output unit Which are controlled and managed by the system software.   Input  – Data and instructions given by the user to the computer is referred as input   Input Unit/Devices  – Input devices are the medium by which the user gives data and instructions to the computer. Input devices converts input information to a suitable form acceptable to a computer. Common examples of input devices are keyboard, mouse scanner etc.   Why does a computer need input devices? Computer basically works on the input (data and instructions) given by the user so in order to...

  Computer – Computer is an electronic and a digital device capable of accepting, storing, processing and retrieving the data given by the user to generate information. Computer works on the principle of Input                  Process                        Output The general purpose for using a computer is to process data and generate information.   Characteristics of a Computer a)       Storage b)       Speed c)       Accuracy d)       Automatic e)       Versatility f)        Diligence     Storage – Computers can store large volumes of data and information in its memory. It stores the information in terms of bits and bytes which are...