Comp Sci logic gates, programming processing steps, truth tables, flow charts, and relational operators

>

greater than

<

less than

=

equal to

≥

equal to or greater than

≤

equal to or less than

≠

Not equal to

Oval

Denotes the beginning or end of the program (Start)

Parrallelogram

Denotes an input operation (Input A)

Rectangle

Denotes a process to be carried out (_=1+1)

Diamond

Denotes a decision to be made. The program should continue along one of two routes (If, then, else)

Hybrid

Denotes an output operation (Print: We’re Good)

Flow line →

Denotes the direction of logic flow in the program

Document

Denotes file or document

Pre-defined process

Denotes a process that has been defined previously

Steps in programming process 1

Define the problem

Steps in programming process 2

Write, revise, refine the algorithm

Steps in programming process 3

Write the code

Steps in programming process 4

Test and Debug

Not - Makes the input inverse (Input 1: Output 0)

And - If A & B are true, Q is true, 1 true 3 false

Or - If A or B are true, then Q is True, 3 true 1 false

Nand - If A and B is true, then Q is false, Inverse of And, 3 true 1 false

Nor - If A or B is true then Q is false, 3 false 1 true