Chapter 6 Inside Computers and Mobile Devices – Flashcards
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A dual-core processor doubles the processing speed of a single-core processor.
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False
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Which of the following is a kind of ROM chip that contains permanently written data, instructions, or information that is recorded when the chip is manufactured?
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Firmware
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What are the three categories of items stored in computer memory?
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operating system and other programs; applications; data being processed
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Your business is looking to rely on cloud computing services to provide system backup and the archiving of earlier versions of files, for example. What is the term for this?
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Storage as a Service
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Inserting dirty media can damage a computer or mobile device's internal components.
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True
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Your business is looking to rely on cloud computing services to create applications using web-based development platforms. What is the term for this?
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Platform as a Service
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A petabyte is equal to approximately 1 billion bytes.
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False
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Which of the following connects the processor to cache?
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BSB
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Custom-built computers often do not include recovery media to restore the computer in the event it fails.
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True
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One gigahertz (GHz) equals how many ticks of the system clock per second?
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One billion
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In the binary system, the digit 1 represents the electronic state of off (absence of an electronic charge).
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False
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L1 cache is built directly into a processor chip and usually has a very small capacity.
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True
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What is memory access time?
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the amount of time it takes the processor to read data, instructions, and information from memory
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You should read reviews for programs and apps before you download and/or install them to make sure the program or app will meet your needs.
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True
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What are the four steps in the machine cycle?
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executing, fetching, storing, decoding
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With the cover off the system unit of a lab computer, your instructor pointed out a type of nonvolatile memory that can be erased electronically and rewritten. What did your instructor call this memory?
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Flash memory
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Which of the following modules is a removable flash memory device that adds memory, communications, multimedia, security, and storage capabilities to computers?
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ExpressCard
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Many batteries on computers and mobile devices can be charged only a certain number of times before they fail completely.
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True
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Which of the following adapter cards connects to musical instruments?
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MIDI
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Some computer and chip manufacturers use which of the following terms to refer to a personal computer processor chip?
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microprocessor
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Which of the following is NOT true of the new multi-core processor you have just purchased?
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Each processor core on the multi-core processor runs at a faster speed than a single-core processor
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Which of the following identifies ROM chips that contain permanently written data, instructions, or information?
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firmware
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What is unique about a multi-core processor?
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It is a single chip with two or more separate processor cores.
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The accompanying figure shows which of the following kinds of modules, which are small circuit boards where RAM chips usually reside, being inserted into the motherboard?
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memory
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If your instructor turns on his computer and then starts a web browser, what contents are in RAM?
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the web browser instructions and certain operating system instructions
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Built into the power supply is a fan that keeps the power supply cool.
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True
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Which of the following is the component of the system unit that converts the wall outlet AC power into the DC power a computer requires?
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power supply
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Your business is looking to rely on cloud computing services to manage your company's hardware, for example. What is the term for this?
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Infrastructure as a Service
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Platform as a Service is also known as a virtual desktop.
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False
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When the processor needs an instruction or data, it searches memory in this order: L1 cache, then L2 cache, then L3 cache (if it exists), then RAM — with a greater delay in processing for each level it must search.
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True
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Where do RAM chips usually reside within a computer?
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on a memory module
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ROM is nonvolatile.
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True
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Which of the following is a case on a desktop that contains and protects the item shown in the accompanying figure and other electronic components?
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system unit
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Two types of cache are memory cache and disk cache.
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True
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Which of the following is a small piece of semiconducting material, usually silicon, on which integrated circuits are etched
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computer chip
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In the machine cycle, executing is the process of carrying out commands
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True
