Revision

Revision

1. Programming constructs:

   • Sequence step by step instructions to solve a problem. Computer will run code one after the other in order.
   • Selection is where something is only run if a condition is met, otherwise the computer ignore the line of code, this is achieved by IF statements
   • Iteration
   • Selection is where you only want some lines of code to be run, only if a condition is met, otherwise the computer ignores the lines and jumps over them. This is done by using IF statements.
   • Iteration is where you want the computer to execute same lines of code multiple times, this done by using a loop. Three types of loops are for, while and repeat until.

2. Object orientated programs

   • Inheritance
   • Encapulation
   • Polymorphism
   • Polymorphism
   • Encapulation
   • Derived classes

3. Scheduling algorithems

   • Round robin
   • Shortest time running
   • First come first serve
   • Round robin
   • Shortest time remaining
   • First come first serve
   • Multi-level feedback
   • Shortest job first

4. Pseudocode

5. Pseudocode

   • Pseudo code can be used to plan out algorithms. It step by step outlines code. Can transcribe into programming language.