Bits and Bytes

Definitions:

1)      Digit- A digit is a single place that can hold numerical values between 0 and 9. Digits are normally combined together in groups to create larger numbers.

2)     Base 10- It is our decimal (base-10) number system. In our customary base-ten system, we have digits for the numbers zero through nine. We do not have a single-digit numeral for "ten". Yes, we write "10", but this stands for "1 ten and 0 ones". This is two digits; we have no single solitary digit that stands for "ten".

3)     Computers use binary numbers, and therefore use binary digits in place of decimal digits. The word bit is a shortening of the words "Binary digIT."

4)     (4*1000)+(3*100)+(2*10)+(1*1)=4000+300+2+1.

5)       Binary  form : 21(10101), 24(11100), 30(11110)

Example of 30 :

6)      Bits are rarely seen alone in computers. They are almost always bundled together into 8-bit collections, and these collections are called bytes.

7)      Bytes:

Kilobytes- 1,024

Megabytes- 1,048,576

Gigabytes- 1,073,741,824

Terabytes- 1,099,511,627,776