1ST SEMESTER BCA IGNOU STUDY NOTES-BLOCK1-UNIT - COMPUTER THEIR ORIGIN AND APPLICATION-PC HARDWARES

The word computer comes from the word “compute” which

means to calculate. Computer is also meant for calculation but it is much more than just a

calculating machine. A computer accepts the input through various

input devices. After receiving the input data, computer performs different operations

required by the user on these input. Finally, computer generates the resultant of the

processed data as the output through various output devices. A computer is an electronic device, which is used for means of communication,information  gathering,data processing,high -speed mathematical calculation, computation and accuracy.