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Worksheetsdata storage y10
Total questions: 47
Worksheet time: 16mins
Using a nibble (4 bits), write the binary for 2
(a)
Why do we use binary in a computer?
What kind of 'base' system is binary known as?
Base 12
Base 8
Base 2
Base 10
What is B in denary
10
11
12
13
12 in denary is what in Hex?
A
B
C
D
Why is hexadecimal used by humans
It is easier to read
it takes up less space on the page/screen
it is easier to remember
It is easier to type
It saves space on the computer
How many nibbles are there in a byte?
1
2
4
8
Smallest to largest, which of the below answers is correct?
bit, nibble,byte,megabyte,kilobyte,terabyte,petabyte
nibble, bit,byte,kilobyte,megabyte,terabyte,petabyte
bit,byte,nibble,kilobyte,megabyte,petabyte,terabyte
bit, nibble,byte,kilobyte,megabyte,terabyte,petabyte
How many bits are in a byte?
(a)
11010111 in binary is...
ODD
EVEN
How many bits was used to encode the original ASCII character set?
7
8
16
4
If 01000001 (65) is the ASCII code for the letter 'A' what is the binary code for 'E'?
01000011
01000101
01000110
01000111
The ASCII code is capable of representing non-European languages
TRUE
FALSE
In which character set can you find emoji?
(a)
A bitmap image is made up of
Pixels
Colours
Sounds
Samples
Additional Information about the image file is stored as ...?
(a)
What is the process called for converting analogue sound into binary (digital format)?
(a)
What is "bit depth" related to sampling sound?
Another setting that affects sound recording quality is the _________, or how many individual samples are taken each second
sample height
sampling rate
bit depth
frame rate
(Write the words in order, separated by a space)
Question: The size of a sound file = sample ____ x ___ depth x length
(a)
How many types of compression do we have?
(a)
Select the advantages for lossy compression
Makes the file much smaller
Will send much quicker
A very simple algorithm
The quality will not be affected much
Select the advantages for lossless compression
Makes the file much smaller
Will send quicker
A very simple algorithm
The quality will not be affected much
You would use (a) compression if you still need to have a high quality image
You would use ______ compression if space was more important than quality
Lossy
Lossless
Name one common file format that is LOSSY
.PSD
.TIFF
.JPG
.BMP
Which is a lossless file format?
.DOC
.JPG
.TIFF
.INDD
How is the file size of an image calculated?
image resolution * colour depth
Colour depth * number of pixels
Number of pixels squared
Sample rate * sample resolution * length in seconds
Colour depth defines...
How many bits are needed to store each pixel
How many pixels are in an image
The file size of a bitmap image
The sample rate of sound
How is the resolution of an image calculated?
width in pixels x height in pixels
Colour depth * number of pixels
Number of pixels squared
Sample rate * sample resolution * length in seconds
