Exam 2: Computers: the Machines Behind Computing

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Describe a binary system.

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Flash memory is used in memory cards for storing and transferring data between computers and other devices.

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An advantage of silicon over gallium arsenide is that:

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A petabyte is 2³⁰ bytes.

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A(n) _____,made of Mylar or metal,is used for random-access processing.

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Beginning in the 1940s,first-generation computers used _____.

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Describe how computer speed is measured.

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A(n) _____ is a machine that accepts data as input,processes data without human intervention by using stored instructions,and outputs information.

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In a network-attached storage (NAS),as the number of users increase,the performance increases.

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A write once,read many (WORM) disc is a common type of _____.

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The _____ is the heart of a computer.

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Computers and communication systems use _____ to represent and transfer information between computers and network systems.

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A magnetic tape stores data randomly.

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_____,which is nonvolatile,holds data when the computer is off or during the course of a program's operation,and it is also used to store large volumes of data for long periods.

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A magnetic disk is a type of secondary memory device.

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A personal computer can perform a variety of tasks by using application software,which can be commercial software or software developed in house.

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_____ is the most common output device for soft copy.

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The control programs managing computer hardware and software perform the _____ function to control and prioritize tasks performed by the CPU.

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A(n) _____ is a step-by-step direction for performing a specific task,which is written in a language the computer can understand.

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_____ servers store computer software,which users can access from their workstations.

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