1.1 Notational Systems

Question 1

How is decimal notation expressed?

Answer 1

Each single digit is assigned on of ten values ranging from 0-9 whereby each column is ten times more than the digit to its right. this is also known as base 10.

Question 2

what is the most common character set used for coding to represent text in computers?

Answer 2

American Standard Code for Information Interchange (ASCII).

Question 3

Websites tend to use what Unicode standard?

Answer 3

UTF-8

Question 4

When should you use hexadecimal notation?

Answer 4

To express large numbers.

Question 5

how do computers differentiate binary data and map it to letters, numbers, and symbols?

Answer 5

A character set maps letters, numbers, and symbols to binary values.

Question 6

what are the two common ways of presenting character set data?

Answer 6

ASCII and Unicode are the most common character sets used to present data.

Question 7

which notation system presents the largest numbers using the fewest digits?

Answer 7

Hexadecimal.

Question 8

how is binary notation expressed?

Answer 8

A single digit in a range from 0 to 1 is used. this number represents an on or off state. Each column is worth two times the column to it’s right. this is also known as base 2.

Question 9

What type of notation is used in common math?

Answer 9

Decimal notation.