Rohit Kumar sagar present’s

1. Rohit Kumar sagarpresent’s PRENTATION OF “INTRODUCTION TO COMPUTER FUNDAMENTALS”

2. DEFINITION OF COMPUTER The word Computeris derived from the word compute which means to calculate.

3. Computer is an electronic device which can be used to calculate and manipulate the problems

4. Characterstics of computer There are some important charactersticsof computer which can be given as below:

5. HIGH SPEED The computer have the ability to do calculation with high speed in comparision to human calculation

6. accuracy The accuracy means accurate the human beings sometime not calculate the data correctly but the computer have such a good quality that it can give an accurate and correct solution of our problems

7. sTORAge Today the computer can store data in lot of amount the data may be like pictures ,files,folders,imges,songs,vedios etc

8. deligence The human beings can become tired after doing some work but computer have the property of deligence and it can work regularly without any tiredness.

9. devices Devices are the media by which we can work on computer Generally the devices can be divided into two types: 1 INPUT DEVICE 2 OUTPUT DEVICE

11. INPUT DEVICES Input devices are those devices by which we can do inputting in our computer

12. SOME INPUT DEVICES ARE GIVEN AS BELOW KEYBOARD MOUSE SCANNER

13. keyboard Keyboard is an input device. It is just similar to the typewriter.It contains basically three types of keys i.e, Functional Keys,Alphanumeric Keys and Speacial Purpose Keys

14. mouse Mouse is also an input device it is also known as pointing device. Mouse can be used for open the files, folders, options etc Mouse can contains the two buttons known as right click and left click which perform the different functions and have roller to see the file up and down

15. SCANNER Scaner is also an input device . It ca be used to convert the data of hard copy like images ,text files etc into the soft copy and the converted copy can be seen on the monitor of computer

16. Output devices Some output devices can be given as below: Monitor Printer Speaker

17. monitor Monitor is an output device . It is just similar to the TV It can be used to see the output in the form of soft copy.

18. printer Printer is also an output device . It is mainly used to convert the data of soft copy into hard copy

19. Speaker Speaker is also an output device. It is used to create the sounds ofany song file,click sounds etc.

20. Memory Memory is the part of computer where the data can be stored . The memory of our computer can be classified into two types: Primary Memory Secondary Memory

21. Primary memory Primary memory is a memory in which we can store data for a short period of time . We cannot store the data permanently in primary memory.

22. Primary memory can also be classified into two types i.e,

23. RAM RAM stands on Random Access Memory. With the help of RAM we access data randomly. Ram also known as volatile memory.

24. ROM ROM stands on Read Only Memory.It can be used to read the memory of a computer.

25. Secondary memory Secondary memory is the memory in which we can store the data permanently . few examples of our secondary memory can be given as below: HARD DISK PEN DRIVE MAGNETIC TAPES

26. HARD DISK Hard disk is the part of our secondary memory. In secondary memory we can store data permanently we can store data like files , folders , pictures , images etc. Today the size of our hard disk be about 80GB , 160GB , 320GB , 500GB etc

27. Pen drive Pen drive also a type of secondary memory . It is the external secondary memory . It can be connected with Universal Serial Bus(USB). Its benefit is that we can move our data from one computer to another .

28. MAGNETIC TAPES Magnetic Tapes are also the secondary device. Magnetic tapes can store data don the tapes which can be made of magnetic coating . It stores data sequentially.

29. THANKYOU SUBMITTED TO: Mr. AnujSrivastav Sir PRESENTED BY ROHIT KUMAR SAGAR J.H.S. PAKBARA MORADABAD