Data validation
Data validation is important in various areas of computer science – database data entry, data warehousing, program input, networking. Any time data is communicated it […]
Programming
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 […]
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”. FUNCTION addThis(a, b) total […]
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 […]
Intro to programming – procedural and object oriented
Recap of both the videos above:
Trace table
Trace tables are used to test the logic in algorithms, they should come after creating pseudocode, not after applying the code in a programming language. […]
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, […]
Algorithms
This Khan Academy course take you through algorithms including binary search and sorting. Khan Academy Algorithms Course