Key Words Flashcards
Algorithm
A set of instructions that achieve a task
Sequence
Following instructions one after another
Variable
A named container for a value (wich can be altered by the program)
Iteration
A repeated set of instructions, common loops eg. Forever, while true
Selection
A choice of wich set of code to follow which is dependent on a true or false question eg. ‘if then else’ ‘if true, if false’
Program
A set of algorithms that have been created to solve a problem commonly known as apps
Imput
A method of entering data onto a computer system, usually with an input device, such as a keyboard or mouse
Output
A method of displaying information eg. A screen
CPU
The central processing unit- every process passes through the cpu
ROM
Read only memory, non-volatile memory, contains the boot strap and BIOS
Volatile
Data is lost when the machine is turned off
RAM
Random access memory, very fast, volatile data storage, containing the operating system, current programs and data