The document discusses the basic components and functions of a computer system. It describes the input, processing, output, and storage units. The input units take in data and instructions, the central processing unit processes the data, the memory units temporarily and permanently store information, and the output units display or print the processed data. The document also provides some examples of early computer pioneers and their inventions that helped advance computing technology.

1. 33

2. 1.
2.
3.
4.

3. 1. (CAI)

4. 2. ( ATM )

5. 3.

6. 4.
5.

7. .. 2336 (Charles Babbage)
(Difference Engine)
“”

8. .. 2376 (Analytical Engine) 3

9. (difference engine) (analytical engine)
“”

11. 1. (Input Unit)
– Keyboard ()
– Mouse ()
– Scanner ()
– Webcam ()
– Microphone ()

12. 1. (Input Unit)
– Keyboard () – Mouse ()
– Scanner () - Webcam ()
– Microphone () – Touch screen ()

13. 2.(Central Processing Unit)
(Processor) (chip)
1. (Arithmetic & Logical Unit :
ALU)
2. (Control Unit)
3. (Main Memory)

14. 3.(Output Unit)
(Output Unit) 2
3.1) (Soft Copy)
– (Monitor)
– (Projector)
– (Audio Output)

15. 3.2) (Hard Copy)
– (Printer)
– (Plotter)

16. 4. (Memory Unit)
(Memory Unit) 2
4.1) (Main Memory Unit)
4.2) (Secondary Storage Unit)

17. (ROM)
(ROM : Read Only Memory) Nonvolatile
Memory ROM
(RAM)
(RAM : Random Access Memory)
Volatile Memory (Secondary Storage)

18. (Hard Disk)
(Hard Disk)
(Floppy Disk)
(Floppy Disk) (Diskette)
(Compact Disk : CD )
(CD- ROM
(Flash memory)
(Flash memory) (Electrically Erasable
Programnable Read Only Memory : EEPROM)

19. 1 (input)

20. 2 (process)
3 (storage) (hard disk) (flash drive)

21. 4 (output)

22. (Automatic Teller Machine : ATM ) 4
1.
2.
3.
4.

23. :
C
IDC PREMIER