Numbering System CS AS

Convert the hexadecimal number 2C to decimal

• 3A
• 34
• 44

• 4A

How many nibbles are there in a byte?

• 2

• 4

• 6

• 8

Signed Integers Represent Which Type of Binary Values

• Any Positive Value between 0-255

• Any Negative Value between -128 and 0

• Any Value between Negative (-128) and Positive +127

• A Signed Integer Means that the Binary value is always 0

A group of 8 bits is known as a gigabyte.

• True
• False

What is 0101 + 1010?
HINT:
1 + 0 = 1
0 + 1 = 1
1 + 1 = 10

• 1111
• 2020
• 146.6
• ?

ASCII is:

• a numerical system that has 2 rather than 10 as a base.
• the most common format for text files in computers and on the Internet

Calculate the binary addition:

1111

1011

• 110101

• 11110

• 11011

• 11010

Lossy Compression is used with Audio files

• True

• False

RLE is a type of

• Lossy Compression

• Lossless Compression

• Analogue to digital conversion

• None of the above

Lossy Compression can be applied on ( Tick all that apply)

• Audio Files

• Word Files

• Video Files

• Drawing