Key Words 1 Flashcards
operating system
software that controls and manages the computer
float
stores a real or decimal number
FOR…NEXT loop
counter based iteration, repeats a set amount of times
integer
stores a whole number
constant
a structure for data storage, whose value may not change whilst the program is running
array
a structure for data storage, holding multiple items of the same type and size
utility
software that performs a single task, usually to maintain or configure the computer, eg text editor
CPU
the Central Processing Unit that executes the code
application
software that performs a general, user-focused task, eg word processor
DO…WHILE loop
condition based iteration, repeats while a condition is true, checks condition at the end so always executes at least once
WHILE…DO loop
condition based iteration, repeats while a condition is true, checks condition at the start
storage technologies
magnetic, solid state, optical
coding standards
comments, indentation, appropriate variable names, modularisation
software
the executable code and data stored and running on a computer
boolean
stores True or False
hardware
the physical components of a computer
string
stores a sequence of alphanumeric characters
variable
a structure for data storage, whose value may change during program execution
selection
choosing whether to execute a set of commands or not, based upon a decision
SELECT…CASE
selection based on the value of a variable
iteration
repeating a set of commands, based upon a counter, or while a condition is met
sequence
executing commands in a particular order, one after the other
IF…ELSE…END IF
selection based on a True/False condition
Embedded system
A computer system that is built into another device
MOD
Gives the remainder
DIV
Gives the integer division (the big number)
