1. NAME – vivek singh. Class – VIII

2. WHAT IS COMPUTER ? A COMPUTER IS AN ELECTRONIC MACHINE. THAT CONVERT DATA INTO MEANINGFUL INFORMATION. IT CALCULATED THE ARITHMATICAL AND LOGICAL TASKS.

3. HOW MANY TYPES OF COMPUTER ? MAINLY THREE TYPES OF COMPUTER – 1.DIGITAL COMPUTER. 2.ANALOG COMPUTER. 3.HYBRID COMPUTER.

4. WHAT IS HARDWARE ? ALL THE PHISICAL COMPONENT OF THE COMPUTER SYSTEM, WE CAN SEE AND TOUCH IS CALLED HARDWARE ALL INPUT, OUTPUT, PROCESSING DEVICES, LOGICAL CIRCUITS ARE EXAMPLE OF HARDWARE.

5. WHAT IS SOFTWARE ? SOFTWARE IS A SET UP PROGRAM, WE CANNOT SEE AND TOUCH WE CAN FEEL IT CALLED SOFTWARE.

6. HOW MANY TYPES OF SOFTWARE ? TWO TYPES OF SOFTWARE :- 1.SYSTEM SOFTWARE 2.APPLICATION

7. WHAT IS THE SMALLEST UNIT OF COMPUTER MEMORY ? BIT – 4BIT – 1NOBBLE - 8BIT – 1 BYTE - 1024 BYTE – 1 K.B - 1024 M.B – 1 G.B - 1024 G.B – 1 J.B

8. WHAT IS PERIPHERALS ? DEVICE ANY PEACE OF HARDWARE ATTACH TO THE COMPUTERIS CALLED PERIPHERALS. EXAMPLE – KEYBOARD MOUSE SPEAKER P.D e.t.c

9. EXPLAIN THE DATA REPRESENTATION ? 1.BINARY NO. SYSTEM – 0 AND1 2.DECIMAL NO. SYSTEM – 0 TO 9 3.OCTAT NO. SYSTEM – 0 TO 7 4.HEXA DECIMAL NO. SYSTEM – 0 TO 9, A TO F

10. WHAT IS COMPUTERT MEMORY ? COMPUTER MEMORY IS ONE OF THE IMPORTANT PART