terms
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each of the black spaces below before clicking
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| biometric device | an input device that inputs biological data about a person;fingerprints,facehandprints,voice,eye
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| chip creep | a condition in which chips loosen because of thermal changes
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| com1 | communications port 1
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| com1 | the number assigned a serial port that determines the system resources used by the port
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| crt | cathode ray tube
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| crt | an older technology used by monitors in which the filsments at the back of a cathode tube shoot a beam of electrons to the screen at the front of the tube
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| degauss button | a buttone on a crt monitor that can be pressed to eliminate accummulated or stray magnetic fields around the monitor which can cause a crt monitor to flicker or have wavy lines
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| dvi-d | video port that works only with digital monitors
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| dvi-i | video port that supports both analog and digital monitors
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| dxdiag.exe | a windows command to display information about hardware and diagnose problems with diectx
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| ecp | extended capabilities port
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| ecp | standard signaling method for bi-directional parallel communication between a computer and peripheral devices that offers the potential for much higher rates of data transfer than the original parallel signaling methods
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| energy star | green system that satisfies the epa requirements to decrease the overrall consumption of electricity
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| epp | enhanced parallel port
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| epp | allows data to flow in both directions
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| firewire | IEEE 1394
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| flat panel monitors | lcd monitor
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| hard drive dock | a device used to protect and house a hard drive outside the computer case and connect it to a esata,usb, or other typr of port
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| hdmi | high definition multimedia interface
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| hdmi | compact audio/video interface for transferring uncompressed digital audio/video data from a HDMI-compliant device ("the source" or "input") to a compatible digital audio device, computer monitor, video projector, and digital television.
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| hub | a network device or box that provides a central location to connect cables and distrubutes incoming data packets to all other devices connected to it
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| i.link | IEEE 1393
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| i/o controller card | an older card that can contain serial,parallel,and game ports and floppy drive and ide connectors
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| ieee 1284 | a standard for parallel ports and cables developed by the institute for electrical and electronics engineers and supported by hardware manufacturers
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| ieee1394 | standards for expansion bus that can also be configured to work as a local bus.
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| ieee1394.3 | designed for peer to peer data transmission and allows imaging devices to send images and photos directly to the printers without involving a computer
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| infrared transceiver | wirelessly uses infrared technology to support some wireless devices such as keyboards,mice and printers.
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| interlaced | a type of display in which the electronic beam of a monitor draws every other line with each pass,which lessons the overall effect of a lower refresh rate
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| ir transceiver | infrared transceiver
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| ieee1394 | expected to replace the scsi bus,providing an easy method to install and configure fast i/o devices
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| irda | infrared data association transceiver
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| irda | infrared data association
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| irq | interrupt request
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| irq line | a line on a bus that is assigned to a device and is used to signal the cpu for servicing
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| isochronous data transfer | transfers data continuously without breaks
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| kvm | keyboard video mouse
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| kvm switch | allows you to use one keyboard,mouse and monitor for multiple computers
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| lcd | liquid crystal dispaly
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| lcd monitor | produces an image using a liquid crystal material made of large easily polarized molecules
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| lpt | line printer terminal
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| lpt | is the usual designation for a parallel port connection to a printer or other device on a personal computer. Most PCs come with one or two LPT connections designated as LPT1 and LPT2. Some systems support a third, LPT3. Whatever the number, LPT1 is the us
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| native resolution | the actual and fixed number of pixels built into an lcd monitor
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| noninterlaced | a type of display in which the electronic beam of a crt monitor draws every line on the screen with each pass
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| refresh rate | the number of times in one second an electronic beam can fill the screen with lines from top to bottom
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| resolution | the number of pixels on a monitor screen that are addressable by software
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| rgb | red green blue
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| rgb | the three colors create a color space that contains three dots,one for each color
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| rs-232c | reference standard
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| rs-232c | interface standard used by a serial port
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| recommended standard 232 revision c | series of computer parts that allow everything in the computer communicate with each other. so it's not a particular thing. like roads and railways are both ways to get places, but but use a different series of pieces and means to get to those places
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| spp | standard parallel port
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| spp | an outdated serial port that allows data to flow in one direction and is the slowest of the three types of parallel ports
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| svga | super vga
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| s-video port | four pin port that sends two signals over the cable,one for color and the other for brightness,and is used by some high end tv and videos equipment
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| touch screen | an input device that uses a monitor or lcd panel as a backdrop for user options
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| uart | universal asynchronous receiver transmitter
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| vga | video graphics adapter
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| vga | a basic standard for color resolution in computer monitors that, today, represents the lowest common denominator for compatibility
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| div | digital visual interface
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| ecp | for non-printer peripherals
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| hdmi | digital alternative to consumer analog standards, such as radio frequency (RF) coaxial cable, composite video, S-Video, SCART,
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| every i/o device is controlled by | software
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| internal devices | network card sound card video card
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| primary windows tool to manage hardware devices | device manager
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| energy star | satisfy certain energy conserving standards required by the EPA
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| external i/o | monitor printer mouse keyboard
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| drivers | control i/o devices
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| usb version 1.1 | allows for two speeds
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| basic speed usb | original usb
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| usb version 2.0` | high speed usb
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| usb2 | 480 mbps
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| high speed usb | backward compatible
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| usb3.0 | superspeed usb
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| four wires on a usb cable | two for power. two for communications
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| ps2 ports | not hot swappable
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| parallel port | female connector
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| serial port | male connector
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| IEEE 1394 | firewire
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| rj45 | network port
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| three types of video ports | vga s video ddi
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| video | analog signal
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| a male connctor | flat and wide
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| b male connector | square
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| static data | data referred to byte
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| transmitting data | bits per second
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| advantages of usb | easy to configure plug n play faster
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| usb1.1 | 1.5 mbps and 12 mbps
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| usb2.0 | allows for up to 480 mbps
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| IEEE1394a | firewire 400
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| IEEE1394b | firewire 800
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| IEEE1394c |
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| IEEE1394.3 |
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| IEEE1394b |
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| db | data bus
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| parallel | male
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| serial | female
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| db9 pin |
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| db25 pin |
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| spp | standard parallel port
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| epp | enhanced parallel port
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| ecp | extended capabilities port
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| epp | standard port
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| standard part | slowest of three ports
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| epp | centronics port
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| epp | data flows in both directions
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| ecp | bi directional data
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| parallel ports | pink ports
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| ecp | designed to increase speed over epp using a dma channel
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| dma | direct memory access
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| data integrity | gets were its suppose to be and gets there together at the same time
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| IEEE 1284 | epp and ecp
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| analog | sign wave
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| digital | binary 1 and 0
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| infrared transceiver | obsolete technology due to line of sight issue
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| two ir header pins | receiver and transmitter heads
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| monitor and video card | needed for video output
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| categories of monitors | crt lcd flat panel led
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| led | light emmitting diodes
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| dot pitch | the distance between any two dots
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| primary lights | red green blue
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| lcd monitor | an image using a liquid crystal material made of large easily polarized molecules
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| lcd | can receive digital and analog signalsfrom the video card have two ports to accommadate each
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| pixel | formed by the intersection of the row and column electrodes
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| vesa | video electronics standard association
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| minimum refresh rate | 70hz or 70 complete refreshes per second
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| noninterlaced monitor | progressive monitor
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| interlaced | draws the screen in two passes
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| noninterlaced | draws it in one pass
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| native resolution | actual fixed number of pixels built into the monitor
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| minimum resolution for monitors | 800 x 600
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| xga | extended graphics array resolution
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| sxga+ | super extended graphics array resolution
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| uxga | ultra extended wide graphics array resolution
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| wuxga | wide ultra resolution
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| convert resolution | horizontal times vertical pixels
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| qwxga | quad wide
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| wqxga | wide quad
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| vram | video ram
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| sgram | synchronous graphics ram
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| wram | window ram
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| mdram | multibank dram
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| 3-d ram |
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| drdram | direct dynamic ram
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| ddr | double data rate
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| ddr2 | double data rate 2
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| ddr3 | double data rate 3
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| gddr3 | graphic dynamic direct
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| gddr4 | graphic
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| direct x | microsoft tool that developers can use to write multimedia applications,games
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| direct x components | direct draw direct music direct play direct 3d
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| drivers | handle communicationbetween bios and operating system
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