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A Primary key is a field in a database that is used as an unique identifier for each record. Therefore the field that is chosen as the primary key has to be something that will be different for every reco...
This is the process of breaking down a problem into sections which become progressively smaller until each module can be written as a singular function. Each module can be tested separately or form part o...
Interpreted code is compiled line by line when a program is run which means there could be errors. Compiled code is translated into object code, all at once and an executable file is produced. Interpreted...
Spooling refers to the use of a temporary storage area, a buffer held in memory for a peripheral device to access when it's ready to process the instruction. This is because devices access data at differe...
The two terms are acronyms for "Control Unit" and "Arithmetic and Logic Unit". The ALU handles all arithmetic operations (for example, addition) and all logical operations (for example...
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