Assignment, Variables, Constants & Sequences
Inputs, Outputs & Type Conversion
IF Statements & Boolean Operators
Nested Selection and Iteration
WHILE, REPEAT-UNTIL Loops
Validation and verification
Validation and authentication routines
High-level & Low-level languages
Assemblers, Compilers & Interpreters
The purpose of verification and authentication is to check if a user is allowed to access a system. The most common method use for verification is a user ID and password.
We use authentication an check to see both if a user is allowed access to a system and to check that they are who they say they are. To do this we might ask for details that only they would know, like a pin number or a mother’s maiden name.
In more recent times sometimes authentication is done via biometrics, which can include: