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WorksheetsHow Computers Work Review
Total questions: 27
Worksheet time: 7mins
Name
Class
Date
1.
Which of the following is the best CONDUCTOR?
a)
copper
b)
water
c)
rubber
d)
plastic
2.
A microprocessor is really just a lot of ___?
a)
wires
b)
pixels
c)
memory
d)
switches
3.
Which of the following is NOT one of the four basic components of a computer?
a)
storage
b)
processing
c)
input
d)
audio
4.
Which of these devices is an example of OUTPUT?
a)
microphone
b)
printer
c)
keyboard
d)
mouse
5.
What are the little dots called that make up a monitor screen?
a)
pixels
b)
bits
c)
bytes
d)
points
6.
What did Charles Babbage invent?
a)
a mechanical computer
b)
the first browser
c)
the Internet
d)
the first electronic computer
7.
What does an INSULATOR do?
a)
stops the flow of electrons
b)
speeds the flow of electrons
c)
completes a circuit
d)
creates a load
8.
What type of memory is deleted when you turn off the computer?
a)
ROM
b)
RAM
c)
hard drive
d)
flash
9.
What type of code does a computer use to process sound?
a)
secret
b)
binary
c)
microphone
d)
rhythm
10.
What is a transistor?
a)
a type of pixel
b)
a byte
c)
a mechanical switch
d)
an electronic switch
11.
What does a computer use to get information faster without having to search through the hard drive?
a)
a browser
b)
RAM
c)
My Documents
d)
ROM
12.
Which of the following is the best INSULATOR?
a)
copper
b)
steel
c)
salt water
d)
rubber
13.
Pictures, movies, sounds on a computer are really just made of ___?
a)
real people inside a box
b)
new creative thought on a machine
c)
the internet
d)
combination of switches on and off
14.
What is RAM (Random Access Memory)?
a)
temporary storage
b)
permanent storage
c)
memory used to start the computer
d)
flash drive
15.
Which of the following are INPUT devices?
a)
printer
b)
speakers
c)
hard drive
d)
keyboard
16.
Which of the following are STORAGE devices?
a)
mouse
b)
speakers
c)
hard drive
d)
motherboard
17.
What does this part of the computer for?
a)
storage
b)
input
c)
output
d)
processing
18.
Which is an example of BINARY CODE?
a)
12321213
b)
aidnwldkgh
c)
#&)^%*&^%
d)
1011011100
19.
What hardware connects all the other parts of the computer together?
a)
motherboard
b)
audio card
c)
power supply
d)
hard drive
20.
Power supply, connector, switch, and load are all parts of a simple ___?
a)
computer
b)
circuit
c)
motherboard
d)
digital image
21.
An electronic switch is operated using what?
a)
your hand
b)
a load
c)
bios card
d)
electricity
22.
Binary code consists of what TWO numbers?
a)
decimal
b)
1 and 2
c)
0 and 1
d)
none; it consists of letters
23.
The 0's and 1's in binary code represent the "on" and "off" of what?
a)
electronic switches
b)
the power supply
c)
lights
d)
browsers
24.
Which is the largest file size?
a)
bit
b)
megabyte
c)
gigabyte
d)
kilobyte
25.
What does this picture represent?
a)
computer
b)
hard drive
c)
circuit
d)
memory
26.
In this picture, will the light be on or off?
a)
on
b)
off
c)
neither
d)
both
27.
What binary code number would represent this circuit?
a)
1
b)
0
c)
2
d)
none
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