WorksheetsBinary Bits & Bobs 2
Total questions: 12
Worksheet time: 24mins
ASCII is:
a numerical system that has 2 rather than 10 as a base.
the most common format for text files in computers and on the Internet
In an ASCII file, each alphabetic, numeric, or special character is represented with a 7-bit binary number (a string of seven 0s or 1s).
True or False
True
False
Upper and lower case letters have a different ASCII code.
True or False
True
False
What is the ASCII code for ... U?
55
85
68
87
What is the following word ... 79 70 70
ON
OFF
OR
ONE
What is the following word ... 67 65 84
COT
BAT
CAR
CAT
What is the ASCII code for ... E?
45
68
69
70
What is a pixel?
A tiny piece of music
A tiny square of colour
A tiny circle of colour
A tiny triangle of colour.
Each pixel has its own binary number, what does this tell the computer?
Where the pixel is located.
Which user can see the pixel.
What colour the pixel should be.
How much storage is in the pixel.
HIDE ANSWER
How do we represent more colours other than black and white in our images?
We use more bits per pixel
We stop using binary
We just type the colour in that we want
We just type the colour in that we want
HIDE ANSWER
The colour of a pixel can be stored as a _______ number
Unicode
Hex
Binary
ASCII
What is meant by the term 'colour depth'?
Width and height of an image.
A pixel in an image.
Quality of the colour.
Number of bits used to encode each pixel.
