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Binary

What is the base 2 number system called?

Denary

What is the base 10 number system called?

Hexadecimal

What is the base 16 number system called?

On and off

In binary, what do 1 and 0 represent?

A single 0 or 1

What is a bit?

4 bits

How many bits are there in a nibble?

8 bits

How many bits are there in a byte?

1024

How many bytes are there in a kilobyte?

1024

How many kilobytes are there in a megabyte?

1024

How many megabytes are there in a gigabyte?

1024

How many gigabytes are there in a terrabyte?

10

1024 is 2 to the power of what?

1

What is 2^0?

2

What is 2^1?

4

What is 2^2?

8

What is 2^3?

16

What is 2^4?

32

What is 2^5?

64

What is 2^6?

128

What is 2^7

256

What is 2^8

255

What is the largest number that can be represented in a single byte?

Pixels

What are images made of?

The amount of red, green and blue in it

How can any colour be described?

3 bytes

In raw format, how much memory does each pixel use?

24 Mb

In raw format, how much memory does an 8 mega pixel image use?

American Standard Code for Information Interchange

What does ASCII stand for?

A standard way of converting from binary to letters or symbols

What is ASCII?

128

How many different symbols are there in ASCII?

4 bits

How much binary memory can be represented by one character of hexadecimal?