Block diagram by vasant
- 5. CREATOR OF BLOCK DIAGRAM John Luis Von Neumann Neumann János Lajos December 28, 1903 Budapest, Austria-Hungary February 8, 1957 (aged 53) Walter Reed General Hospital Washington, D.C., United States
- 6. History of creator John luis von neumann’s original name is Neumann Janos Lajos His father was Miksa neumann His mother was Margit kann He was a mathematician and also a scientist
- 7. INPUT UNIT Computer receives data and instructions through the Input Unit. The input unit consists of one or more input devices. Input devices include: Keyboard Mouse Joystick Scanner
- 8. FUNCTIONS OF INPUT UNIT Accept the data and instructions from the outside world. Convert it to a form that the computer can understand. Supply the converted data to the computer system for further processing.
- 9. OUTPUT UNIT Computer provides information and results of computation to the outside world through the Output Unit. The output unit consists of one or more output devices. Output devices include: Monitor Printer Scanner Webcam Speakers
- 10. FUNCTIONS OF OUTPUT UNIT Accept the results produced by the computer. (These are in a coded form.) Convert it to a form that the outside world can understand. (OR, Converts it into human readable form.) Supply the converted results to the outside world.
- 11. CPU It is the brain of the computer. The ALU and the Control Unit (CU) of a computer system are jointly known as the central processing unit. CPU performs actual processing of data, according to instructions from programs
- 12. FUNCTIONS OF CPU It performs all calculations. It takes all decisions. It controls all units of the computer.
- 14. CONTROL UNIT It controls all other units in the computer. It is the central nervous system of the computer that controls and synchronizes its working.
- 15. ARITHMETIC LOGICAL UNIT All calculations are performed in the Arithmetic Logic Unit (ALU) of the computer It performs all arithmetic operations (addition, subtraction, multiplication, and division). It performs all logic operations
- 16. STORAGE The storage unit of the computer holds data and instructions that are entered through the input unit, before they are processed Storage devices are divided into two categories: ◦ or Primary memory or Main memory ◦ or Secondary memory
- 17. STORAGE FUNCTIONS It received the data and instructions required for processing from the input unit. It stores the intermediate results. It stores the final results before these results are released to the output unit. It saves data for later use.
- 19. TO BE COTINUED