Binary to Decimal

Question 1

ASCII

Answer 1

Each character of the alphabet, some special symbols and control codes are represented by a agreed binary patterns using 8-bit .(limit for characters is 256)

Question 2

Primitive Data types

Answer 2

> Integer (whole number)
Boolean (value of true or false)
Real /Float (a number with a fractional part(3.45.-6.25))
character (a letter, number or special symbol))
string (anything enclosed with quotation marks)

Question 3

Unicode

Answer 3

> Originally 16-bit code allowing for more than 65,000 characters to be represented.
Then updated to remove the 16-bit restriction by using a series of code pages with each page being chosen language symbols
original ASCII includes.

Question 4

Bases of code systems
>Denary
>Binary
>Hex

Answer 4

> Denary base^10
Binary base^2
Hex base^16

Question 5

MSB and LSB

Answer 5

> MSB = Most Significant Bit

> LSB = Least Significant Bit

Question 6

Binary Addition rules

Answer 6

0 + 0 = 0
0 + 1 = 1
1 + 0 = 1
1 + 1 = 0 carry the 1
1 + 1 + 1= 1 carry the 1

Question 7

Binary Subtraction rules

Answer 7

0 - 0 =0
1 - 1 = 0
1 - 0 = 1
0 - 1 = 1 (after borrowing 2 from the left)

Question 8

Why use hex?

Answer 8

> Easier to read and remember

> Quicker to use and write