World of Computers Gyan

  Internal Structure of Computer A computer device is made up of various elements which help in its effective functioning and processing. There are five basic components of the computer which help in making this processing of data easier and convenient.  Input Unit Output Unit Central Processing Unit (CPU) ·          Input Unit A computer will only respond when a command is given to the device. These commands can be given using the input unit or the input devices.  For example: Using a keyboard we can type things on a Notepad and the computer processes the entered data and then displays the output of the same of the screen. The data entered can be in the form of numbers, alphabet, images, etc. We enter the information using an input device, the processing units convert it into computer understandable languages and then the final output is received by a human-understandable language. ·   ...

  Generations of Computer There are a total of five Generations of Computer, with each Generation something new was discovered to improvise the functioning and the use of the computer systems.   First Generation (Vacuum Tubes) – 1940-1956: This Generation computers relied on Machine Language (the Language of 0s and 1s) and used Vacuum tubes as components of memory. They were huge in size and occupied almost a room-size area to fit in.     Characteristic features of the 1st Generation of computer: The price of managing these computers was very high They were huge They were not capable of multitasking, and only one task could be performed at a time There was no use of monitors; the output was directly given in the form of print outs The electricity consumption was very high Examples of computers developed in this generation are ENIAC – Electronic Numeric Integrated and Computer, UNIVAC- Universal Automatic Computer, EDSAC ...