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Questions and Answers List

Question	Answer
A computer can be defined as ...	a programmable, electronic device that accepts data, performs operations on that data, presents the results, and stores the data or results as needed.
The fact that a computer is programmable means that ...	a computer will do whatever the instructions—called the program—tell it to do.
The programs used with a computer determine ...	the tasks the computer is able to perform.
The four operations described in this definition are more technically referred to ...	as input, processing, output, and storage.
What is Input?	Entering data into the computer.
What is processing?	Performing operations on the data.
What is output?	Presenting the results.
What is storage?	Saving data, programs, or output for future use
Example: A computer is programmed to add two numbers.	The result can be seen in the pictures.
This progression of input, processing, output, and storage is sometimes referred to ...	as the IPOS cycle or the information processing cycle.
In addition to these four primary computer operations, today’s computers also typically perform...	communications functions.
What is communications function?	Sending or retrieving data via the Internet, accessing information located in a shared company database, or exchanging data or e-mail messages with others.
Therefore, communications technically an input or output operation, depending on which direction the information is going—is often considered ...	the fifth primary computer operation.