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Exam 22: B: Extension: A Hardware and Software Basics

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Question 71

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The control unit performs all arithmetic operations (for example, addition and subtraction) and all logic operations.

A) True
B) False

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Question 72

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A supercomputer is the fastest, most powerful, and most expensive type of computer.Organizations such as NASA that are heavily involved in research and number crunching employ supercomputers because of the speed with which they can process information.Other large, customer-oriented businesses such as General Motors and AT&T employ supercomputers just to handle customer information and transaction processing.

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B) False

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Question 73

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What is roughly 1 million bytes?

What is a secondary storage medium that uses magnetic techniques to store and retrieve data on disks or tapes coated with magnetically sensitive materials?

Secondary storage consists of equipment designed to store large volumes of data for long-term storage.

What computer is designed to meet the computing needs of several people simultaneously in a small to medium-size business environment?

What refers to a device's ability to function with or without power?

What interprets software instructions and literally tells the other hardware devices what to do, based on the software instructions?

What is the term for the number of bits (0s and 1s) that can be processed by the CPU at any one time?

Desktop publishing transforms a computer into a desktop publishing workstation.Leading packages include Adobe FrameMaker, Adobe PageMaker, and QuarkXpress.

Spyware removes any software that employs a user's Internet connection in the background without the user's knowledge or explicit permission.

Utility systems are customized by using the control panel, which is a Windows feature that provides options that set default values for the Windows operating system.

What provides additional functionality to the operating system?

An input device is equipment used to capture information and commands.

Disk image is software for data recovery and relieves the burden of reinstalling applications if a hard drive crashes or becomes irretrievably corrupted.

A workstation is a cellular telephone with a keypad that runs programs, music, photos, email, and includes many features of a PDA.

A handheld computer is portable enough to fit in a purse or pocket and has its own power source or battery.

What is the computer's main memory, which consists of the random access memory (RAM) , cache memory, and read-only memory (ROM) that is directly accessible to the CPU?

Application software is used in computer appliances and special-purpose applications, such as an automobile, ATM, or media player, and is used for a single purpose.

Identify the different computer categories and explain their potential business uses.