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Chapter 3 Exercises Multiple Choice Select the best answer

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Chapter 3 Exercises
Multiple Choice

Select the best answer.
1. Which item is not a field replaceable unit (FRU) on newer motherboards?

a. CPU

b. CMOS battery

c. system bus

d. RAM
2. A CPU that uses one voltage for external operations and another for internal operations is considered a ______ CPU.

a. single voltage

b. cross rail design

c. expansion voltage

d. dual voltage
3. ________ is a small amount of static RAM that provides faster access to data and instructions than other types of memory.

a. fast memory

b. memory cache

c. level memory

d. dynamic RAM
4. Which of these is not a category of cargo carried over a bus?

a. control signals

b. memory addresses

c. data

d. IRQs
5. Which of these components is not used to keep a CPU cool?

a. cool sinks

b. heat sinks

c. fans

d. coolers

1. c

2. d

3. b

4. d

5. a

Write the word or phrase to fill in the blank in each of the following questions.
1.The CPU contains three basic components: a(n)________ unit, one or more _________, and a(n) __________.

2. A bus that works in sync with the CPU and the system clock is called a __________. A bus that works asynchronously with the CPU at a much slower rate is called an __________.

3. An _____________ is a basic set of commands permanently built into the CPU chip to perform fundamental operations, such as comparing or adding two numbers.

4. The design of a processor’s packaging is defined by the ________ or _______ used to connect it to the motherboard.

5. __________ processors have larger instruction sets and generally run more slowly, because it takes more steps to accomplish a simple operation. ________ processors have fewer instructions but run more quickly.

1. I/O, arithmetic logic, control

2. local bus, expansion bus

3. instruction set

4. slot, socket

5. complex instruction set computing (CISC), reduced instruction set computing (RISC)

Matching Terms

Match the terms with their definitions.

_h_ 1. ZIF sockets

a. the first expansion slots on early PCs

_a_ 2. ISA slots

b. metal plate that fits over the ports on the back of a computer case

_d_ 3. Firewire bus

c. bus used to connect slow I/O devices such as a mouse

_c_ 4. USB

d. very fast bus often used for downloading video from a camera to the computer

_b_ 5. faceplate

e. material used to protect chips and provide connectors of a standard size and shape

_g_ 6. standoffs

f. a clip-on device with fingers or fins that pull the heat away from the CPU

_j_ 7. AGP

g. pegs that separate the motherboard from the case

_f_ 8. heat sink

h. socket with a small lever to lift CPU up and out of the motherboard

_i_ 9. processor speed

i. the speed at which the CPU operates internally, often measured in MHz

_e_ 10. packaging

j. dedicated bus between the chip set on the video card and the CPU

Short Answer Questions

Write a brief answer to each of the following questions.

  1. Name at least eight components that are contained on a motherboard.

  2. What is bus speed and how does it relate to the system clock? Why do the buses on a motherboard operate at different speeds?

  3. What is one reason to flash BIOS? What is the easiest way to obtain the latest software to upgrade BIOS?

  4. List several types of form factors. What is the most popular type of form factor for PCs today?

  5. Describe the basic steps required to install a new motherboard in your computer.


  1. CPU, chip set, system clock, ROM BIOS, CMOS configuration chip, CMOS battery, RAM, RAM cache, system bus with expansion slots, jumpers and DIP switches, ports that are directly on the board, power supply connections.

  2. Bus speed is the frequency or speed at which data moves on a bus. The system clock synchronizes data transfer into and out of the system on the system bus. More than one bit, however, can be transferred in every clock cycle. Thus, if a CPU has a clock speed of 200 MHz and can transfer four bits per cycle, then the system bus speed (often referred to as front side bus speed) is 800 MHz. With today’s CPUs, common speeds for the system bus are 800 MHz, 533 MHz, or 400 MHz. Older CPUs have system bus speeds of 200 MHz, 133 MHz, or 100 MHz. Buses on a computer do not all operate at the same speed because not all devices to which the buses are connected transmit data at the same speed. The speeds of different hardware components are evolving at different rates.

  3. To add new features made available by the BIOS manufacturer or to attempt to solve problems with the motherboard. Go to the Web site of the BIOS or motherboard manufacturer.

  4. AT, ATX, LPX, NLX, and backplane form factors. The most popular is ATX.

  5. Basic steps to install a motherboard include:

    • Using a ground strap to ground yourself when working inside a computer case, to protect components against ESD.

    • Be sure the motherboard you plan to install has a form factor that fits in your computer case.

    • Read the manual that comes with the motherboard from beginning to end. Visually familiarize yourself with the configuration of the case and the motherboard.

    • Prepare the motherboard to go into the case by setting the jumpers or DIP switches and then installing the CPU, the fan, and the heat sink.

    • Install the CPU chip in the socket or slot.

    • Install the RAM in the memory slots.

    • Install the motherboard in the case by installing the faceplate, installing the standoffs, placing the motherboard inside the case, and using screws to attach it.

    • Connect the power cord from the power supply to the power connection on the motherboard.

    • Connect the wire leads from the front panel of the case to the motherboard.

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