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Chapter 6 Inside Computers and Mobile Devices

A dual-core processor doubles the processing speed of a single-core processor.
False
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?
Firmware
What are the three categories of items stored in computer memory?
operating system and other programs; applications; data being processed
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?
Storage as a Service
Inserting dirty media can damage a computer or mobile device’s internal components.
True
Your business is looking to rely on cloud computing services to create applications using web-based development platforms. What is the term for this?
Platform as a Service
A petabyte is equal to approximately 1 billion bytes.
False
Which of the following connects the processor to cache?
BSB
Custom-built computers often do not include recovery media to restore the computer in the event it fails.
True
One gigahertz (GHz) equals how many ticks of the system clock per second?
One billion
In the binary system, the digit 1 represents the electronic state of off (absence of an electronic charge).
False
L1 cache is built directly into a processor chip and usually has a very small capacity.
True
What is memory access time?
the amount of time it takes the processor to read data, instructions, and information from memory
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.
True
What are the four steps in the machine cycle?
executing, fetching, storing, decoding
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?
Flash memory
Which of the following modules is a removable flash memory device that adds memory, communications, multimedia, security, and storage capabilities to computers?
ExpressCard
Many batteries on computers and mobile devices can be charged only a certain number of times before they fail completely.
True
Which of the following adapter cards connects to musical instruments?
MIDI
Some computer and chip manufacturers use which of the following terms to refer to a personal computer processor chip?
microprocessor
Which of the following is NOT true of the new multi-core processor you have just purchased?
Each processor core on the multi-core processor runs at a faster speed than a single-core processor
Which of the following identifies ROM chips that contain permanently written data, instructions, or information?
firmware
What is unique about a multi-core processor?
It is a single chip with two or more separate processor cores.
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?
memory
If your instructor turns on his computer and then starts a web browser, what contents are in RAM?
the web browser instructions and certain operating system instructions
Built into the power supply is a fan that keeps the power supply cool.
True
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?
power supply
Your business is looking to rely on cloud computing services to manage your company’s hardware, for example. What is the term for this?
Infrastructure as a Service
Platform as a Service is also known as a virtual desktop.
False
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.
True
Where do RAM chips usually reside within a computer?
on a memory module
ROM is nonvolatile.
True
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?
system unit
Two types of cache are memory cache and disk cache.
True
Which of the following is a small piece of semiconducting material, usually silicon, on which integrated circuits are etched
computer chip
In the machine cycle, executing is the process of carrying out commands
True

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