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Worksheets

exploring computer science

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

algorithm is a precise sequence of instructions that can be executed by a computer

a)

true

b)

false

2.

the collected information about an individual across the internet

a)

digital camera

b)

debugging

c)

indention

d)

digital footprint

3.

input is any device or computer that _______________

a)

allows information to be given to a computer

b)

is assembled and reassembled using force

c)

allows information to be received from a computer

d)

data globalized through a computer

4.

some key components of a computer include:

a)

input devices/output devices

b)

processor

c)

operating systems

d)

all of the above

5.

debugging is finding or fixing problems in an algorithm or program

a)

true

b)

false

6.

when planning a webpage, a creator should consider the

a)

subject

b)

audience

c)

layout

d)

all of the above

7.

mac, windows, linux, chromeOS, iOS, and android are all different _______________ systems

a)

job

b)

social

c)

safety

d)

operating

8.

what digits are in a binary system?

a)

0,1

b)

0,1,2,3,4,5,6,7,8,9

c)

0,1,2,3,4,5,A,C,D,E

d)

0,1,2,3,4

9.

which numbering system does a computer use?

a)

decimal

b)

hexadecimal

c)

binary

d)

linear

10.

what is the decimal value of binary number 1101

a)

15

b)

16

c)

7

d)

12

11.

what does CPU stand for?

a)

computer processing unit

b)

central processing unit

c)

central programming unit

d)

computer programming unit

12.

in scratch, what category contains blocks containing <,>,=

a)

data

b)

motion

c)

looks

d)

operators

13.

what is considered the brains of the computer?

a)

motherboard

b)

CPU

c)

keyboard

d)

monitor

14.

evaluating a web page for authority means looking for...

a)

updates

b)

bias

c)

the overall appearance

d)

the qualifications of the author

15.

this type of storage is erased once the computer is turned off

a)

RAM

b)

hard drive

c)

soft drive

d)

semi-permanent drive