Binary

Question 1

How do binary numbers compare with decimal numbers?

Answer 1

Binary numbers use a base two system while decimal numbers use a base ten system.

Question 2

What is the algorithm to increase a binary number by one?

Answer 2

You work from right to left. You check the digit, if it is a zero, change it to a one, if it is a one, change it to a zero and move to the next digit.

Question 3

Why do computers use binary numbers?

Answer 3

Computers can only understand switches, one for on and one for off. They cannot understand multiple digits, so they use binary.

Question 4

What is ACII code?

Answer 4

It is a type of code that can be used to tell a computer to write certain characters. Each character has a number, including spaces. Each number uses 8 bits.

Question 5

What are hexadecimal numbers?

Answer 5

They are numbers that are base sixteen. Each column has a value sixteen times the one to the right.

Question 6

What are the digits used in hexadecimal numbers?

Answer 6

0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F