Computing key terms

Question 1

Algorithm

Answer 1

A set of instructions that achieve a task

Question 2

Sequence

Answer 2

Following instructions one after the other

Question 3

Variable

Answer 3

A named container for a value (Which can be inspected or altered by the program)

Question 4

Iteration

Answer 4

A repeated set of instructions - common loops include forever, while true, while

Question 5

Selection

Answer 5

A choice of which set of code to follow is dependent on a true or false question - common selections are “if then else” , “when… do”

Question 6

Program

Answer 6

A set of algorithms that have been created to solve a problem - commonly known as apps (application software)

Question 7

Input

Answer 7

A method of entering data onto a computer system, usually with an input device, such as a keyboard or mouse

Question 8

Output

Answer 8

A method of displaying information to a user e.g. a screen

Question 9

CPU

Answer 9

The central processing unit - every command passes through the CPU

Question 10

RAM

Answer 10

Random access memory, very fast, volatile data storage, contains the operating system, current programs and data

Question 11

ROM

Answer 11

Read only memory, non-volatile memory, contains the boot strap and BIOS

Question 12

Volatile

Answer 12

Data is lost when the machine is turned off