1.2.3 Unit Flashcards
1
Q
Put the units of data and capacity in order
A
Bit Nibble Byte Kilobyte Megabyte Gigabyte Terabyte Petabyte
2
Q
What is a bit?
A
A Binary Digit is the smallest unit of data a computer can store
3
Q
How many bits is a nibble?
A
It describes a group of 4 bits
4
Q
How many bits is a byte?
A
A ‘byte’ is a collection of 8 bits.
5
Q
Why is binary used for computers?
A
Because of binary components are:
Easier to manufacture
Cheaper
More reliable
6
Q
Calculations of data capacity requirements?
A
text files:
Bit per character x Number of characters
Sound files:
Frequency × bit depth × channels = bit rate
bit rate x duration (s) = file size
Image files:
colour depth x image height x image width
