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Units of Storage in Computer for JSS2

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Data can be stored in the computer through several methods using varying electronic components. Some these components include: Hard disk, Compact disk, Flash drive, Floppy disk, Random Access Memory (RAM), etc.
Some units of storage in computer include:
Bit: The Smallest Unit of data on a binary computer. A single bit consist of 0 (zero) or 1 (one).
Nibble: A nibble is a collection of four bits.
Bytes: A byte consists of eight bits. It is the smallest item that can be individually accessed by a program.
Word : A word is a group of 16 bits
Others are;
Name Symbol size Approximate size
Kilobyte KB 1024 B 1000 B
Megabyte MB 1024 KB 1000 KB
Gigabyte GB 1024 MB 1000 MB
Terabyte TB 1024 GB 1000 GB
Petabyte PB 1024 TB 1000 TB
Exabyte EB 1024 PB 1000 PB
Zettabyte ZB 1024 EB 1000 EB
Yottabyte YB 1024 ZB 1000 ZB
Conversion from one Unit to another
The conversion process from one unit to another can be done using the following standard table.
1 bit = 0 or 1
1 nibble = 4 bits
1 bytes = 8 bits
1 word = 16 bits
1 kilobyte = 1024 bytes
1 MB = 1024 KB
1 GB = 1024 MB
1 TB = 1024 GB
1 PB = 1024 TB
1 EB = 1024 PB
1 ZB = 1024 EB
1 YB = 1024 ZB
Examples
Convert the following
a. 12 bits to byte
b. 50 bits to word
c. 1420 Bytes to Kilobytes
d. 2 Gigabytes to Megabyte
Difference between Kilometer, Kilogram and Kilobyte
Kilometre, Kilogramme and kilobytes are different units of measurement used for different purposes.
1.To measure distance travelled from one place to another, unit of distance must be used, which is the metre, and one of its multiples is the kilometer. i.e. 1km = 1000m =10 3m
2.To measure quantity or weight of an object, a unit of weight must be used, which is the gramme, and one of it multiple is the kilogramme. i.e. 1kg = 1000g = 10 3 g
3. To measure the amount of space that is required for a document or data to be held temporary or permanently in a storage medium, a unit of storage must be used which is the byte, and one of its multiple is the kilobyte. i.e 1 KB = 1024 B
From the above, it follow that Kilometre (Km), Kilogramme (Kg) and Kilobyte (KB) are units of different parameters.
Parameter Unit Symbol Multiple
Distance metre m Km
Weight gramme g Kg
Storage byte B KB
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