1) A bit is the smallest unit of computer data and can have a value of 0 or 1. 8 bits form a byte. 2) Common units of computer data storage are the kilobyte (KB), megabyte (MB), gigabyte (GB), terabyte (TB), petabyte (PB), exabyte (EB), zettabyte (ZB), and yottabyte (YB), with each being 1024 times larger than the previous unit. 3) These units are used to measure and describe computer memory, storage, and data transmission speeds in bytes, kilobytes, megabytes etc. depending on the size of the data or storage being referred to

1. Bit, Byte, KB, MB, GB etc...
Computer Data Memory Units Explained in Detail
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3. Definition
What is Computer Data Units ?
Computer Data unit is a unit for measuring computer
memory.

4. Memory
Kinds Of Memory…
Computer Data unit is a unit for measuring computer
memory.

5. Memory
Storage Devices use the unit of memory card…

6. What is bit ?
Most important part in system.
• First we know about what is bit.
• Computer circuit need power of electricity.
• Electricity power mode On and Off
• The on and Off is Bit in electricity.
• Because the computer are store the data in form off electricity.
• In Electricity also called bit.
• Only two value in bit 0 and 1 mean on and off.

7. What is Nibble ?
This not import unit in computer.
Nibble Storage Unit
Half a byte (four bits) is called a nibble.

8. What is Byte?
This is import unit in computer.
Byte Storage unit
In Computer System are all information mention in
byte format data display on screen.
Bit or Byte both are different form.
1 Byte = 8bits.
A byte is the unit most computers use to represent a character such as a letter,
number or typographic symbol.
for example, “g”, “5”, or “?”

9. Confusion 
Sign
Which is bit and Byte.
b = bit
B = Byte
1024 * 1024 = 2048
2048/8 = 256
2Mb/s = 256 KB/s

10. Octet
This not import unit in computer.
Which is bit and Byte.
in some systems, the term octet is used for an
eight-bit unit instead of byte.
In many systems, four eight-bit bytes or octets form a 32-bit word.
In such systems, instructions lengths are sometimes expressed as
full-word (32 bits in length) or half-word (16 bits in length).

11. Kilobyte
1024 bytes = 1 KB
Note 
A Kilobyte (kb or Kbyte) is approximately a thousand bytes
(actually, 2 to the 10th power, or decimal 1,024 bytes).

12. Megabyte
1024 kilobyte= 1 MB
Note 
As a measure of computer processor storage and real and virtual me
mory, a megabyte (abbreviated MB) is 2 to the 20th power byte,
or 1,048,576 bytes in decimal notation.

13. Gigabyte
1024 Megabyte= 1 GB
Note 
A Gigabyte (pronounced Gig-a-bite with hard G’s) is a measure of co
mputer data storage capacity and is “roughly” a billion bytes. A gigab
yte is two to the 30th power, or 1,073,741,824 in decimal notation.

14. Terabyte
1024 Gigabyte= 1 TB
Note 
A Terabyte is a measure of computer storage capacity and is 2 to the
40th power of 1024 gigabytes.

15. Petabyte
1024 Terabyte= 1 PB
Note 
A Petabyte (PB) is a measure of memory or storage capacity and is 2
to the 50th power bytes or, in decimal, approximately a thousand
terabytes (1024 terabytes).

16. Exabyte
1024 Petabyte= 1 EB
Note 
An Exabyte (EB) is a large unit of computer data storage, two to the
sixtieth power bytes. The prefix exa means one billion billion, or on
quintillion, which is a decimal term. Two to the sixtieth power is
actually 1,152,921,504,606,846,976 bytes in decimal, or somewhat
over a quintillion (or ten to the eighteenth power) bytes. It is
common to say that an Exabyte is approximately one quintillion
bytes. In decimal terms, an Exabyte is a billion gigabytes.

17. Zettabyte
1024 Exabyte= 1 ZB
Note 
A Zettabyte (ZB) is equal to one sextillion bytes. It is commo
nly abbreviated ZB. At this time, no computer has one Zettab
yte of storage. It has 1024 Exabytes.

18. Yottabyte
1024 Zettabyte= 1 YB
Note 
A Yottabyte is equal to one septillion bytes. It is commonly a
bbreviated YB. At this time, no computer has one Zettabyte
of storage. It has 1024 Zettabytes.