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DC review 1 computers

Total questions: 71

Worksheet time: 47mins

Name
Class
Date
1.
What is the main function of the CPU?
a)
To carry out processing of the data.
b)
To help with playing games.
c)
To fetch instructions from memory, decode them and execute the instructions.
d)
To heat up the computer.
2.
CPU stands for
a)
Computer Processing Unit
b)
Central Processing Unit
c)
Core Processing Unit
d)
Central Power Unit
3.
Without a CPU the computer would not work.
a)
true
b)
FALSE
4.

The CPU fetches instructions from.... and executes those instructions.

a)

Memory

b)

ALU

c)

ROM

d)

Input Device

5.

Information used by the CPU is loaded first in

a)

ROM

b)

RAM

c)

CMOS

d)

Register

6.
Clock speed is measures in
a)
bytes
b)
bits
c)
time
d)
hertz
7.

Either stores the address from which data will be fetched from the CPU, or the address to which data will be sent and stored.

a)

MAR (Memory Address Register)

b)

MDR (Memory Data Register)

c)

CIR (Current Instruction Register)

d)

PC (Program Counter)

e)

ALU (Arithmetic and Logic Unit)

8.
What is a bus?
a)
A circuit that connect one part of CPU to other components.
b)
A type of long term memory
c)
A type of permanent memory
d)
A method of transport
9.
How does clock speed affect computer performance?
a)
The higher the clock speed the slower the computer will run.
b)
It improves the amount you can store on the computer.
c)
The higher the clock speed the better the performance.
d)
It will make loading program slower
10.
Which of the following CPU's will have a better better performance:
A: 3 GHz Quad Core CPU
B: 3 GHz Duel Core CPU 
a)
A
b)
B
11.
The purpose of the CPU is to ____. 
a)
Process data
b)
Store data
12.
____ is a small amount of memory which is a part of the CPU - closer to the CPU than RAM.
a)
Cache
b)
Core
c)
Intel
d)
Clock speed
13.
A clock speed of 500Hz means...
a)
500 cycles per second
b)
5000 cycles per minute
c)
5 cycles per hour
d)
50 cycles per minute
14.
What is the job of the control unit?
a)
It carries out calculations
b)
It stores information.
c)
It does nothing.
d)
It controls the input and output of data to make sure that it gets to the right place.
15.
What is the program counters job?
a)
To count the programs
b)
It contains the memory address of the next instruction to be loaded
c)
It stores instructions
d)
It carries out the calculations
16.
Which of the following is a job of the control unit?
a)
To start up the computer
b)
To manage the fetch decode execute cycle
c)
To create presentations
d)
To carry out calcul
17.
What is cache memory?
a)
A very large, temporary memory
b)
A very small but expensive memory
c)
It is used to store data and programs permanently
d)
It is a type of payment
18.
How can a bigger cache improve CPU performance?
a)
By being able to carry out more calculations
b)
By being able to store more recently used instruction inside the CPU for quicker access times
c)
By being able to 
19.

The main circuit board in the system unit is also called the

a)

Busboard

b)

Chipboard

c)

RAM

d)

Motherboard

20.

Computers use _______ signal to represent information

a)

Analog

b)

Digital

c)

Pulse

d)

Decimal

21.
What does RAM stand for?
a)
Random All Memory
b)
Read All Memry
c)
Random Access Memory
d)
Read Access Memory
22.
What does ROM stand for?
a)
Random Only Memory
b)
Random Only Memory
c)
Rapid Only Machine
d)
Read Only Memory
23.

ROM Vs RAM: What is used to boot up the computer when it is switched on...

a)

RAM

b)

ROM

24.

What does volatile mean?

a)

Data is lost when the power is turned off

b)

Data is NOT lost when the power is turned off

25.

Which component receives its instructions directly from the RAM?

a)

Motherboard

b)

BIOS

c)

CPU

d)

Hard Drive

26.

Why will a system create virtual memory?

a)

It is created when a computer is running many processes at once and RAM is running low.

b)

It is non- volatile.

c)

It is created when a computer is running many processes at once and ROM is running low.

d)

It is created when the processor is running at capacity.

27.

What does non-volatile mean?

a)

Data isn't lost once power is switched off.

b)

Once power is switched off, all data on it is lost.

28.

What is the name of the extremely fast memory that is built into the CPU. Used as temporary stores for data and instructions.

a)

Flash Memory

b)

Cache Memory

c)

Registers

d)

Virtual Memory

29.
A computer has 1024 megabytes of RAM. That is the same as ...
a)
1 Gb
b)
1000 Gb
c)
1 Kb
d)
1 Tb
30.
What is a disadvantage of Virtual Memory?
a)
Read/Write speed of a hard disk drive is slower than RAM. If the computer has to rely on this, the system is much slower.
b)
Read/Write speeds of a hard drive are faster than RAM, meaning the system is much faster.
31.
If the RAM is upgraded from 512MB to 4GB, what will be the biggest benefit?
a)
More programs and data can be opened at the same time
b)
The operating system will be faster
c)
There will be more hard drive space
d)
The computer will be quicker if you open a document
32.
More memory usually means that the computer is faster
a)
TRUE
b)
FALSE
33.
RAM is usually sold in multiples of how many megabytes
a)
16
b)
7
c)
10
d)
15
34.
Which of these is the largest file size?
a)
TB
b)
B
c)
KB
d)
GB
35.
RAM is non-volatile memory
a)
True
b)
False
36.
True or False:
RAM is Fast temporary memory
a)
TRUE
b)
FALSE
37.
More memory usually means that the computer is faster
a)
TRUE
b)
FALSE
38.
If the RAM is upgraded from 512MB to 4GB, what will be the biggest benefit?
a)
More programs and data can be opened at the same time
b)
The operating system will be faster
c)
There will be more hard drive space
d)
The computer will be quicker if you open a document
39.
Which RAM is faster
a)
Static RAM
b)
Dynamic RAM
40.
 Random Access Memory (RAM) falls into the category of the so-called volatile storage media. It requires a continuous flow of electricity to preserve its contents thus all the data stored in RAM lasts only while the power is on.
a)
True 
b)
False
41.
Which memory technology is tied to the system clock.
a)
SDRAM
b)
DDR
c)
RDRAM
d)
DDR4
42.

Which of these is the smallest file size?

a)

TB

b)

B

c)

ZB

d)

KB

43.
Which of these are in the correct order? (smallest to largest)
a)
B, KB, MB, TB, GB
b)
GB, KB, MB, TB, B
c)
B, KB, MB, GB, TB
d)
KB, MB, TB, GB, B
44.

Power supplies convert AC power from the wall into what type of power?

a)

DC

b)

Voltage

c)

Wattage

d)

Ultimate Power

45.

In North America, electrical systems operate at around what voltage?

a)

440

b)

220

c)

110

d)

24

46.

When working inside a computer, it's important to power it off and unplug it.

a)

True

b)

False

47.

To calculate the wattage of a device, we use what formula?

a)

volts + ampsvolts\ +\ amps

b)

volts × ampsvolts\ \times\ amps

c)

volts ÷ ampsvolts\ \div\ amps

d)

πr2\pi r^2

48.

If a power supply is found to be defective, you should attempt to repair it.

a)

True

b)

False

49.
What type of power connector is this?
a)
SATA
b)
SCSI
c)
Molex
d)
Berg
50.
What type of power connector is this?
a)
SATA
b)
SCSI
c)
Molex
d)
Berg
51.

Electrical systems in Europe, Africa, and Asia mostly operate at around what voltage?

a)

110

b)

220

c)

60

d)

180

52.

When troubleshooting a PC that is not powering on, what is the BEST first step?

a)

Open the case and check the main power connector

b)

Replace the power supply

c)

Verify power from the wall

d)

Replace the power cord

53.

In addition to power from the wall, mobile devices can also be powered by what?

a)

Nuclear power

b)

Water

c)

Solar power

d)

Rechargeable batteries

54.

When choosing a power supply, what are the two most important items to consider?

a)

Size and Shape

b)

Wattage and Connectors

c)

Voltage and Amperage

d)

Brand and Color

55.

Almost all desktop computers come with a Power Supply that has a fan blowing air out of the system unit. Why then would someone need to add another fan to the front of the system unit?

a)

To blow hot air out of the front of the system

b)

To keep the air already inside the case cooler

c)

To blow more cool air over other components

d)

You have no choice, front fans are required for all ATX12V equipment.

56.

You go to a job site and determine that you need to test a Power Supply on a computer. Which tool should you use to accomplish this task?

a)

Device Manager

b)

Multimeter

c)

Anti-static strap

d)

CMOS Health monitor

57.

You walk into Brad's office and notice a strong burning odor coming from inside his computer case. Which part should you suspect in his computer?

a)

PSU

b)

Processor

c)

CMOS battery

d)

Hard drive

58.

Tom replaces the Power Supply in a PC and now it won't boot. What two things should he check next?

a)

RAM

b)

CMOS setup settings

c)

Motherboard

d)

HDD

e)

Graphics Card

59.

Jill calls the IT Dept. and says when her computer boots, it just shuts back down. What should the technician assigned to her case use to troubleshoot the problem?

a)

Toner probe

b)

Power supply tester

c)

Loopback plugs

d)

Event logs

60.

Gary's computer randomly reboots at odd times of the day. What two things should be performed first when troubleshooting this issue.

a)

Check the PSU integrity

b)

Check the CMOS battery

c)

Check the video card integrity

d)

Check the memory integrity

e)

Check the optical drive integrity

61.

All Power Supplies are rated by their _____________ output.

a)

Wattage

b)

Amperage

c)

Joule

d)

Farad

62.

What is a graphics card?

a)

A monitor

b)

Speeds up processor

c)

Its a card that shows pixels on a monitor

d)

A piece a junk

63.

What are Pixels?

a)

a minute area of illumination on a display screen, one of many from which an image is composed

b)

A movie with Adam Sandler

c)

Something that applies to a graphics card

d)

a dot

64.

Does a card need a fan?

a)

Yes

b)

No

c)

Maybe

65.

Is a graphics card important?

a)

very important

b)

Not important

c)

Semi-important

66.

How much are graphics cards?

a)

$500-$1,000

b)

$200-$600

c)

$100-$500

d)

$1,000-$3,000

67.

How long do graphics card last?

a)

3 years

b)

5 years

c)

1 year

d)

10 years

68.

Who Sells Graphics Cards?

a)

Marshalls

b)

Gigaparts

c)

Hobby Lobby

d)

Dirt Cheap

69.

Which is the best graphics card company?

a)

MSI

b)

GeForce

c)

Zotac

d)

AMD

70.

How much memory does a graphics card have?

a)

4GB

b)

8GB

c)

16GB

d)

It depends

71.

Did this game help you learn more about graphics cards?

a)

Yes

b)

No

c)

A little

d)

Not at all

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