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Array:A data structure that stores a list of values of the same data type. It is possible to input and output values or process an entire array using a For Next Loop. Each element has an index to specify ...

AND (both conditions on either side of the AND operation MUST be satisfied for the IF function to work)
OR (either condition on each side of the OR operation MUST be satisfied for the IF function to ...

A variable is a memory location given a name and a data type. Once a variable has been declared its contents may be modified using its name.
An identifier is the name you give a variable. (In the cas...

Data Validation
Data validation is the process of comparing data with a set of rules to find out if data is reasonable. 
There are many types of data validation such as:
...

The cache memory aims to reduce the memory access time and thus increase your computer speed by storing frequently accessed data. A buffer, such as a printing buffer, is just a temporary memory storage th...