Study of Computer Hardware System using Block Diagram

Study of Computer Hardware System using Block Diagram

1. B UILD I NG B LOCK D IAGRAM OF C OMPUTER 1 C. P. Divate

2. B UILDING B LOCK D IAGRAM OF C OMPUTER Also cal l ed ana t omy st r ucture, architec t ure diagram of computer Str u cture diagram consists o f i nput devic e s , processing units and output devices. Computer also has s ystem t h a t m a k e s computer to run smooth There are three units in building a computer. 2 7/28/2017

3. Fig: Building Blog Diagram of Computer 7/28/2017

4. 1. I NPUT UNIT Used to receive data and instruction from users Converts the data and instruc t ions to machine readable code. Common input devices are keyboard, mouse, joystick, scanner, etc. 4 7/28/2017

5. F UNCTIONS OF I NPUT UNIT Ac c e p t - the data an d inst r uctions f r om outside world. Convert - it to a form that the computer can understand. S u p p ly - t he co n verted data t o t he co m put e r system for further processing. 5 7/28/2017

6. 2. P ROCESSING U NIT It is the brain of the computer. d a ta, CPU performs actual processing of according to instructions from programs. Consists of three parts: Memory Unit, Control Unit And Arithmetic Logic Unit (ALU) 6 7/28/2017

7. Memory unit : place where data and instructions are stored during proc e s sing period. Popular memory are RAM and ROM. Control unit : It controls the entire system of computer. It makes pr o per s equen c e t o direct the in p ut data and instructions to memory to ALU. It also controls sig n als t o v a r i o u s p a r ts of computer. It also t ra n s fer r es u lt f r om A L U t o me m o r 7 y and then to output devices. 7/28/2017

8. Arithmetic L ogic Unit : compr i s es number of register on its constructions. All data from memory gets loaded in ALU. It performs various arithmetic and logical operations of the programs. 7/28/2017

9. 3. O UTPUT U NIT Computer provides information and results of computation to the outside world through output unit. The output unit consists of one or more output devices. Some output devices are: Monitor Printer Spe a k e r 9 7/28/2017

10. T HANK Y OU 7/28/2017 10