RAVINDRA'S BLOG
Bit vs Byte
Bits:
- Bit is a smallest unit of data.
- It has two values ''0" or "1".
- Bit values representation in other forms:
- "True" or "False" (Logical Values)
- "+" or "-" (Algebraic Sign)
- "On" or "Off" (Activation State)
- Symbol of bits is "b". (Example : Mbps (Mega Bits Per Second))
Bytes:
- Byte is a storage value unit.
- It is the combination of 8 bits.
- Symbol of byte is "B". (Example : MBps (Mega Bytes Per Second)).
- In below figure, 1 Byte with bit representation is shown.
- Next stage units of bytes is:
- Kilobytes.
- Megabytes.
- Gigabytes.
- Terabytes.
- Petabytes.
- Next units of bytes are powers of 2. (i.e: 1 byte = 1024 KB = 2^10).
Implementation of "i" in KB:
- Storage Device manufacturers and internet providers started using bytes in powers of 10.
- They started measuring as 1 KB = 1000 Bytes.
- When we connect storage device it shows less memory (example 16GB as 14.9GB).
- In order to avoid this confusion implemented "i"
- Names of Bytes are :
- Kibibytes
- Mebibytes
- Gibibytes
- Tebibytes
- Pebibytes.
- This values are fixed for powers of 2.
Below is the table shows the byte values of next higher.