Exam 2: The System Unit: Processing and Memory

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Because of its large size, when audio data is transmitted over the Internet it is often encrypted to shorten the download time. _________________________

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Unlike ASCII, Unicode is a universal coding standard designed to represent text-based data written in any language, including those with different alphabets.

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Explain what a register is and how it is used.

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A register is high-speed memory built into the CPU. Registers are used by the CPU to temporarily store data and intermediary results during processing. Registers are the fastest type of memory used by the CPU, even faster than Level 1 cache. Generally, the more data a register can contain at one time, the faster the CPU performs.

A ____ is equal to 1,024 bytes.

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The process of representing data in digital form so it can be used by a digital computer is called decimal byte representation.

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With bitmapped images, the color of each ____ is represented by bits; the more bits used, the better the image quality.

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A ____ is the smallest unit of data that a binary computer can recognize.

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Early computers required programs to be written in machine language.

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____ have begun to replace ROM for storing system information, such as a PC's BIOS.

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The backside bus (BSB) has been one of the most common types of expansion buses in past years.

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As large documents are stored, retrieved, and then stored again, they often become ____________________-that is, not stored in contiguous (adjacent) storage areas.

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Each location in memory has an address.

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Like the CPU, RAM consists of circuits etched onto chips. These chips are arranged onto circuit boards called ____________________.

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The control unit takes the instructions fetched by the prefetch unit and translates them into a form that can be understood by the control unit, ALU, and FPU.

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The bus width and bus speed together determine the bus's ____ or bandwidth; that is, the amount of data that can be transferred via the bus in a given period of time.

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Terascale computing is the ability of computers to process one ____ floating-point operations per second (teraflops).

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____________________ are locations on the motherboard into which expansion cards can be inserted to connect those cards to the motherboard.

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The central processing unit (CPU) consists of a variety of circuitry and components that are packaged together and connected directly to the motherboard. _________________________

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Video data-such as home movies, feature films, and television shows-is displayed using a collection of ____.

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Each machine language instruction in a CPU's instruction set is broken down into several smaller, machine-level instructions called supercode. _________________________

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