Statements and control structures (selection and iteration)
Each line of code which performs an action is a statement. When a statement tests if something is true or false it is a control […]
Programming
Variables – local, global, and parameter
Local A local variable is only available to the module (or block of code) it is within. That is its “scope”. The variable total is […]
Variables, constants, and arrays
Variable A variable exists to store a value in a location (in memory) identified by a symbol (a name). When creating a variable we identify […]
Data types
Computers store information as binary 1’s and 0’s. These are known as bits. Groups of 8 bits are bytes. Ultimately, whatever data we store in […]
Binary, Decimal, and Hexadecimal
Binary Base 2. 0’s and 1’s. Binary is how all computers store and deal with data, whether that data is representing numbers, words, images, audio, […]