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COMPUTER CONCEPTS Vocabulary Chapter 6 The Computer Marketplace Benchmark test A set of tests used to measure computer hardware or software performance. Level 1 cache (Ll cache) Cache memory built into a microprocessor chip. Ll cache can typically be read in one clock cycle.

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computer concepts vocabulary

COMPUTER CONCEPTSVocabulary

Chapter 6

The Computer Marketplace

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benchmark test
Benchmark test
  • A set of tests used to measure computer hardware or software performance.

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level 1 cache ll cache
Level 1 cache (Ll cache)
  • Cache memory built into a microprocessor chip. Ll cache can typically be read in one clock cycle.

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level 2 cache l2 cache
Level 2 cache (L2 cache)
  • Cache memory that is located in a chip separate from the microprocessor chip.

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sdram
SDRAM
  • Short for synchronous dynamic RAM, it is a type of RAM that synchronizes itself with the CPU, thus enabling it to run at much higher clock speeds than conventional RAM.

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controller
Controller
  • A circuit board in a hard drive that positions the disk and read-write heads to locate data.

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DMA
  • Short for direct memory access, DMA refers to specialized circuitry that transfers data between drives and RAM, bypassing the CPU.

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EIDE
  • Short for enhanced integrated drive (or device) electronics, EIDE is a disk drive technology formally known as ATA.

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scsi small computer system interface
SCSI (Small Computer System Interface)
  • An interface standard used for attaching peripheral devices such as disk drives. Pronounced "scuzzy."

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ultra ata
Ultra ATA
  • A disk drive technology that is an enhanced version of EIDE. Also referred to as Ultra DMA or Ultra IDE.

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touchpad
Touchpad
  • A touch-sensitive input device that allows the user to control an on-screen pointer by moving the fingertips over the pad's surface.

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track point
Track point
  • A small pencil-eraser-shaped device embedded among typing keys that controls an on- screen pointer when the user pushes the track point up, down, left, or right.

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trackball
Trackball
  • A pointing device consisting of a ball that is rotated in a frame to move a pointer around a computer screen.

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wavetable synthesis
Wavetable synthesis
  • A MIDI standard that creates music by playing digitized sound samples of actual instruments.

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crt cathode ray tube
CRT (cathode ray tube)
  • A display technology that uses a large vacuum tube, similar to that used in television sets. Although CRT technically refers to the vacuum tube, it is often used to refer to the entire monitor.

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lcd liquid crystal display
LCD (Liquid Crystal Display)
  • A type of flat panel computer screen, typically found on notebook computers.

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viewable image size vis
Viewable image size (vis)
  • A measurement of the maximum image size that can be displayed on a monitor screen.

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dot pitch
Dot pitch
  • The diagonal distance between colored dots on a display screen. Measured in millimeters, dot pitch helps to determine the quality of an image displayed on a monitor.

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maximum resolution
Maximum resolution
  • The maximum number of pixels a monitor can display, measured in number of horizontal pixels x number of vertical pixels.

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accelerated graphics card
Accelerated graphics card
  • A type of graphics card that contains special circuitry to increase the speed at which graphics can be displayed.

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active matrix screen
Active matrix screen
  • A type of LCD technology that produces a clear, sharp image because each pixel is controlled by its own transistor.

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color depth
Color depth
  • The number of bits that determines the range of possible colors that can be assigned to each pixel. For example, an 8-bit color depth can create 256 colors.

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passive matrix screen
Passive matrix screen
  • A display found on older notebook computers that relies on timing to ensure that the liquid crystal cells are illuminated.

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svga super video graphics array
SVGA (Super Video Graphics Array)
  • SVGA typically refers to 800 x 600 resolution.

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video memory
Video memory
  • Memory chips located on a graphics card that store images as they are processed. More video memory allows a computer to display images at higher resolutions and color depth.

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xga extended graphics array
XGA (Extended Graphics Array)
  • XGA usually refers to 1024 x 768 resolution.

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external bay
External bay
  • An opening in the computer case that allows the user to install a device, such as a floppy disk drive, that must be accessed from out- side the case.

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internal bay
Internal bay
  • A location inside the system unit case where devices that do not need to be accessed from outside the case can be installed.

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pcmcia card
PCMCIA card
  • A small credit card-sized circuit board used to connect a modem, memory, network card, or storage device to a notebook computer.

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pcmcia slot
PCMCIA slot
  • A PCMCIA (Personal Computer Memory Card International Association) slot is an external expansion slot typically found on note- book computers.

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part replicator
Part replicator
  • A device that connects to a note- book computer, by means of a bus connector plug, and contains a duplicate of the notebook computer's ports for connecting devices such as an external monitor, mouse, or keyboard.

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hot swap
Hot swap
  • Switching batteries or other plug-in devices while the computer is on.

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Dpi
  • Dpi refers to the resolution of an image. Images with more dots per inch (dpi) appear more realistic than images with fewer dots per inch.

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duty cycle
Duty cycle
  • The amount of output that can be expected from a printer, typically measured in pages per month.

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ink jet printer
Ink jet printer
  • A non-impact printer that creates characters or graphics by spraying liquid ink onto paper or other media.

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laser printer
Laser printer
  • A printer that uses laser-based technology, similar to that used by photocopiers, to produce text and graphics.

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postscript
PostScript
  • A printer language, developed by Adobe Systems, which uses a special set of commands to control page layout, fonts, and graphics.

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printer control language pcl
Printer Control Language (PCL)
  • The unofficial standard language used to send page formatting instructions from a PC to a laser or ink jet printer.

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dot matrix printer
Dot matrix printer
  • A printer that creates characters and graphics by striking an inked ribbon with small wires called pins, generating a fine pattern of dots.

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multifunction printer
Multifunction printer
  • An output device that combines printing capability with other functions, such as scanning, faxing, copying, and answering machine.

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computer industry
Computer industry
  • The corporations and individuals that supply goods and services to people and organizations that use computers.

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vaporware
Vaporware
  • Software that is announced but not produced.

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alpha test
Alpha test
  • One of the first phases of software testing, usually conducted by the software publisher's in-house testing team.

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beta test
Beta test
  • A testing phase near the and of the software development process in which a software product is tested in real-world computer environments, often by and-users.

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revision
Revision
  • An updated form (indicated by x) of a software program, incorporating minor enhancements and eliminating bugs found in the most recent version.

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software publisher
Software publisher
  • A company that produces computer software.

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version
Version
  • A new or totally redesigned product (for example, in the identifying number 6.1, the 6 is the version number).

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competitive upgrade
Competitive upgrade
  • A special price offered to consumers who switch from one company's software product to the new version of a competitor's product.

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street price
Street price
  • The average discounted price of a product.

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version upgrade price
Version upgrade price
  • A special price for a new version of a software package, offered to owners of an earlier version.

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computer retail store
Computer retail store
  • A store that typically sells several brands of computers from a store-front location, such as a mall or shopping center.

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mail order supplier
Mail-order supplier
  • A merchant that takes orders by telephone or from an Internet site, then ships orders by mail or other courier service.

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manufacturer direct
Manufacturer direct
  • The selling of products by hardware manufacturers directly to consumers, by means of a sales force or mail order. create a system designed to meet the needs of specific customers or industries.

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computer related jobs
Computer-related jobs
  • Jobs in the computer industry that are similar to jobs in other industries (computer sales, high-tech recruiting, etc.).

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computer specific jobs
Computer-specific jobs
  • Jobs that are unique to the computer industry (computer programmer, Webmaster, etc).

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computer use jobs
Computer-use jobs
  • Jobs that require the use of computers to accomplish tasks in fields other than computing (laboratory technician, accountant, etc.).

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computer engineering
Computer engineering
  • A career that focuses on the design and development of computer hardware and peripheral devices.

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computer science
Computer science
  • A career field that focuses on developing fast and efficient computers, from their construction, to their programming and operating systems.

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information system
Information system
  • Refers to a computer system that stores data and supplies information, usually within a business context. Also refers to the career field that focuses on developing such systems.

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return to title page
Return to Title Page
  • Prepared by James Q. Jacobs

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