Exam 3: Computer Hardware

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Digital cameras and digital video cameras enable users to shoot, store, and download still photos or full-motion video and audio onto their PCs.

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Most CD-ROM disks can hold more than 600 megabytes of information.

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High speed storage media _______________ than lower-speed storage media.

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Data are processed and stored in a computer system through the presence or absence of electronic or magnetic signals to the computer. This is called a _______________ representation of data, because the computer and the media can exhibit only two states or conditions.

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DVD+RW+R with CD-RW provides an all-in-one drive for burning DVD-RW or DVD-R disks, burning CDs, and reading DVDs and CDs.

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The first electronic digital computer was completed in the 1960s.

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In the 1950s, _______________ were invented and quickly replaced the thousands of vacuum tubes used in electronic computers.

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The dark, magnetic stripe on the back of credit cards can hold about _______________ of information.

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Which of the following would not be considered a characteristic of supercomputer systems?

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The primary storage (main memory) of a computer consists of microelectronic semiconductor memory chips.

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Some touch screens emit a grid of infrared beams or sound waves that is broken when the screen is touched.

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The primary storage (main memory) of a computer is also called:

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Mainframe computers are sometimes used as front-end computers in order to assist midrange computers in performing telecommunications processing and network management.

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A computer that uses vacuum tube technology is called a __________-generation computer.

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Speaker independent voice recognition systems:

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The function of an output device is to:

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According to Moore's Law, _______________ doubles every 18 to 24 months.

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Optical _______________ devices read text or graphics and then convert them into digital input for your computer.

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It is predicted that in the future we will be able to back up our biological memories.

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The main advantage of CD-R (compact disk-recordable) disks is that they enable recorded data to be erased many times.

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