Edexcel GCSE Computer Science
Study Guide Unit 6: Programming
2026.
Assignment - ANSSetting the value of a variable
Boolean - ANSA value that can only be true or false
Character - ANSA single alphabetic or numeric character
Comparison - ANSChecking the values of two items and returning TRUE of FALSE
depending on the results
Concatenation - ANSCombining two string into a single string
Constant - ANSA label referring to a location in memory containing a value that can
be accessed but not changed by a program
Declaration - ANSIdentifying a variable or constant or array to a program so that
memory space can be aollocated
Extreme - ANSData that is at the extreme limit of valid or invalid to check boundary
conditions
Flowchart - ANSA diagrammatic method of showing the structure and data flow to
define a problem and its solution
Integer - ANSWhole number, positive or negative, with no decimal or fractional part
Integrated development environment - ANS(IDE) Resources supplied with high-level
languages to help the programmer
Invalid - ANSData used to test a program that should be rejected because it is 'out of
range'
Iteration - ANSA group of instructions is executed repeatedly until a condition is met
(loop)
Logic error - ANSThe logical structure of the program produces unexpected results
Machine code - ANSInstructions in binary used by the CPU
Nesting - ANSStructures inside other structures
Operator - ANSA logical, arithmetic or comparison operator used by the program
Python - ANSHigh-level programming language
Real - ANSA number that can have decimal or fractional parts
Selection - ANSThe pathway through a program is selected by using a condition to
decide on what instructions to execute next
Sequence - ANSA list of instructions to be carried out in order, one after the other
Source Code - ANSThe program written by the end user in a high-level language
before it is converted to machine code
String - ANSA sequence of alphabetic and/or numeric characters
