MIS CH 6 – Flashcards with Answers
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The larger the number of bits handled by the bus, the slower the computer transfers data.
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false
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When determining the amount of RAM necessary for a computer you wish to purchase, what should you consider?
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the types of software you plan to use
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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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If you see eight numbers such as 01000101 grouped together and you are told these numbers represent the letter E, what is this combination of numbers called?
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a coding scheme
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The speed of the system clock is one of the factors that influences a computer's performance.
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true
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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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How many fans are typically in a desktop case?
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at least three
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What is the unit of measurement for the clock speed for the channel shown in the accompanying figure?
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hertz
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What is the best analog for a 32-bit bus?
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a 32-lane highway
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Your business is looking to rely on cloud computing services to make data available to its developers to incorporate in applications. What is the term for this?
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Data as a Service
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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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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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Double Data Rate SDRAM (DDR SDRAM) chips are even faster than SDRAM chips because which of the following is true?
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They transfer data twice for each clock cycle.
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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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Which of the following is the component of the processor that directs and coordinates most of the operations in the computer?
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control unit
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Which of the following describes a computing environment where everyday objects are connected to the Internet?
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IoT
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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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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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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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The electronic components and circuitry of the system unit, such as the processor and memory, usually are part of or are connected to a circuit board called the fatherboard
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false
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L2 cache is slightly faster than L1 cache but has a much smaller capacity.
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false
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In the accompanying figure, what on the motherboard holds the memory modules?
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memory slots
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In the machine cycle, fetching refers to the process of translating instructions into signals the computer can execute.
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false
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If a computer advertisement states a computer operates at 5 GHz, what does that mean?
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The system clock has a clock speed of five billion clock cycles per second.
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If a dog is identified by scanning the shoulder or neck of the animal, what provides the information about the dog?
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a microchip
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Buses transfer bits from input devices to memory, from memory to the processor, from the processor to memory, and from memory to output or storage devices
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true
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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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A can of compressed air can be used to free a keyboard from any dirt and debris that might interfere with the operation of the keys.
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true
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ROM is nonvolatile
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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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Which of the following rests below a laptop and protects the computer from overheating and also your lap from excessive heat?
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cooling pad
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When you examine a computer chip under a microscope, what will you see?
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integrated circuits
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Which of the following is another term for the system unit?
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chassis
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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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Memory access times can be measured in fractions of a second. When measuring memory access times, which of the following is the fastest?
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picosecond
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Which of the following is an alternate term for an adapter card?
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expansion card
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The access time (speed) of memory has no effect on how fast a computer processes data.
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false
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You want to allow sound to be input through a microphone and output through external speakers on your computer. What must you have in order to do this?
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sound card
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A computer technician told your friend he needed a circuit board that provides a connection to a peripheral device for use with his computer. What category of circuit board should your friend purchase?
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adapter card
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When 8 bits are grouped together as a unit, how many individual characters can these 8 bits represent?
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256
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What type of circuit board is used to convert computer output into a video signal that displays an image on a monitor?
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graphics card
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Which kind of tablet typically does not include a physical keyboard and puts the case behind the display?
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slate
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The processor relies on which of the following to control the timing of all computer operations?
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system clock
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Which of the following interprets and carries out the basic instructions that operate a computer?
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CPU
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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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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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Which of the following are small high-speed storage locations contained by the processor that temporarily hold data and instructions?
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registers
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On a personal computer, the various functions performed by the processor extend over many separate chips and often multiple circuit boards.
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false
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Which of the following is a type of nonvolatile memory that can be erased electronically and rewritten?
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flash memory
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Dynamic RAM (DRAM) chips are faster and more reliable than any version of SDRAM chips.
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false
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The batteries in mobile computers and devices typically are rechargeable lithium-ion batteries.
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true
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What are three names for the electronic component that interprets and carries out the basic instructions that operate a computer?
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CPU, processor, central processing unit
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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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The faster the clock speed, the more of these the processor can execute per second. What are they?
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instructions
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Processors all use the same type of register.
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false
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Which of the following describe computer memory?
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electronic components that store, among other things, instructions waiting to be executed by the processor
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Which of the following identifies three types of RAM in sequence from the slowest to the fastest?
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DRAM, SRAM, RDRAM
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Computer memory and computer storage are available in varying sizes. Which of the following is the largest amount of memory or storage?
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terabyte (TB)
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Which of the following are the two leading manufacturers of personal computer processor chips?
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Intel and AMD
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A byte is uninformative because it provides only enough different combinations of 0s and 1s to represent 8 individual characters.
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false
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Current processors include advanced transfer cache, a type of cache built directly on a processor chip. Which type of cache is this?
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L2 cache
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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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The case of the system unit is made of metal or plastic and protects the internal electronic components from damage.
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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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Which of the following refers to an environment of servers that house and provide access to resources users access via the Internet?
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cloud computing
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A dual-core processor doubles the processing speed of a single-core processor.
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false
