Tuesday 31 January 2017

Computer Hardware Theory


MODEL EXAMINATION

Subject: Computer Hardware
Time: 2 Hrs
Max. Marks: 50

I. Fill in the blanks :-

1. A printed circuit board that contains most of the processing components required by the computer is called…………………….
2. The main function of SMPS is to convert ………..into …………..
3. A processor socket which has holes on it is known as …………………
4. Orange wire of the power supply contains  ……………volts
5. MBR stand for………………….
6. PGA stands for………………..
7. A 4 pin connector that provides power to the hard drive/CD drive is known as ……………
8. ………..is an example of non impact printer.
9. A processor socket which has holes on it is known as …………………
10. ………..is used to cool excess heat off the processor.
 (1 x 10 =10)
II. Fill in the blanks :-
1. Motherboard power connector has 12 pins.
2. IDE connector provide connectivity to hard drive or CD/DVD drive
3. BIOS is used to display images on screen.
4. Jumpers provide configuration setting of the hardware
5. CMOS battery is used to provide power to the memory chip.
6. IDE’s are faster than SATA.
7. FSB is used to transfer data between processor, memory and the north bridge chip
8. SMPS can be checked by shorting green and black wires.
9. In BGA type packaging, processors are permanently attached to the motherboard
10. SRAM’s are mostly used in cache memory.
 (1´10=10)

III. Write short notes on ( Attempt any six):-
1. FSB and BSB
2. ROM and its types
3. Tracks, sectors and cylinders.
4. SRAM and DRAM
5. Northbridge and south bridge chip
6. BIOS and CMOS.
7. SMPS and its colour codes
 (3 x 6=18)
IV. Answer any three of the following:-
1. Explain the working of a CPU.
2. Draw a labeled diagram of a computer motherboard.
3. Writer down the steps of laser printing
4. What is a virus? What are the symptoms and prevention of computer virus?
 (3 x 4 = 12)