Q9: Why do we use the binary number system in Computing? (4-6) ü

To represent the two different states of transistors

Because a CPU has two transistors

To allow the CPU to be in one of two states

Q8: A character set is… (4-6) ü

Possible characters represented by a computer system

What language can be used in a computer system

The fonts that a computer has installed.

Q10: ASCII Stands for (6-7) ü

American Standard Code for Information Interchange

American Scientific Code for Information Interchanging

Absolute Standard Codes for Instruction Interchange

Q2: What is meant by Colour Depth? (4-6)

The number of colours available for each pixel

Q3: What is meant by bit depth? (3-6) ü

The number of bits used to store each sound sample

The number of samples taken per second

The number of bits used per second of audio

Q4: Which of the following is true if you decrease the bit rate? (3-6) ü

Number of sound samples taken per second increases

Q7: The purpose of a Digital to Analogue converter is to… (6-8)

convert binary data into analogue form so we can hear it

convert soundwaves to binary so its understood by a computer

Q10: The amplitude of a sound wave is… (6-9) ü

how high the wave is from the crest or trough

the frequency at which it is sampled

the speed at which it travels through air

Q1: What is compression? (1-4) ü

To reduce the size of data to save space

To minimize the time taken for a file to be downloaded

To compress something by pressing it very hard

Q2: What does Lossy Compression do to files? (4-6) ü

Remove unneeded data in a file to reduce file size

Increases the file size and keeps the same quality

Eliminates no information at all

Decreases the file size and keeps the same quality

Q3: What is Lossless Compression? (4-6) ü

There is no loss in information at all after compression

No information is lost but file size is increased

Files which have the exact same data after compression

Compression that involves an algorithm

Q10: JPEG Stands for (4-6) ü

Joint Photographic Experts Group

Junior Photographic Export Group

UNIT 2.6 DATA REPRESENTATION

Quiz

•

Computers

•

10th Grade

•

Practice Problem

•

Medium

Richard Smith

Used 38+ times

FREE Resource

50 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Q1: What numeric base does Binary operate on? (1-4) ü

2

1

8

16

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Q2: How many bits are there in a byte? (1-4) ü

8

16

1

2

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Q3: What is the maximum number of bits needed to represent 15 in denary? (3-5)

6

4

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Q4: What is the 8 bit binary representation of 17? (5-7) ü

10010

10001

1101

100010

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Q5: What is the binary representation of 32? (5-7) ü

100000

100100

110000

100001

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Q6: What is the Denary representation of this 8 bit number? 01001111 (5-7)

59

79

69

49

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Q7: Q7: What is the Denary representation of this 8 bit number? 11010101 (5-7)

199

206

228

213

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UNIT 2.6 DATA REPRESENTATION

50 questions

Q1: What numeric base does Binary operate on? (1-4) ü

Q2: How many bits are there in a byte? (1-4) ü

Q3: What is the maximum number of bits needed to represent 15 in denary? (3-5)

Q4: What is the 8 bit binary representation of 17? (5-7) ü

Q5: What is the binary representation of 32? (5-7) ü

Q6: What is the Denary representation of this 8 bit number? 01001111 (5-7)

Q7: Q7: What is the Denary representation of this 8 bit number? 11010101 (5-7)

Q8: How Bytes are there in a Terabyte? (5-7) ü

Q9: Why do we use the binary number system in Computing? (4-6) ü

Q10: What is the hex number 6B in binary? (6-8) ü

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