UNIT-2
COMPUTER HARDWARE AND OPERATING SYSTEM
CHAPTER-1
COMPONENTS OF A PERSONAL COMPUTER
1. What is the normal size of the hard disk available today?
a. 1KB
b. 1MB
c. 1024 bytes
d. 1TB
Ans. d
2. The device which supplies controlled voltage to various components in CPU is ------------------
Ans. SMPS(Switched Mode Power Supply)
3. ------------ is a PCB that is used to connect all main components together inside CPU cabinet.
Ans. Mother Board
4. Expand USB
Ans. Universal serial Bus
5. System date is stored using memory?
a. RAM
b. Secondary Memory
c. CMOS memory
d. ROM
Ans. c
6. BIOS means
Ans. Basic Input Output System .The routine instructions present in ROM which is executed at the initial stage of booting are generally called BIOS.
7. What is booting?
When we switch on the computer a series of activity take place and operating system is loaded into memory (RAM).This process is called booting.
8. Explain any three types of expansion slots?
1. Industry Standard Architecture(ISA) - Slowest type of bus.
2. Personal Computer Interface(PCI) - Faster than ISA, supports plug and play.
3. Accelerated Graphics Plot (AGP) - Designed for video adapters.
9. Explain various components present inside CPU cabinet?
Brief description about above components. Ref Text.
