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apluschapter 9
terms
| Question | Answer |
|---|---|
| biometric device | an input device that inputs biological data about a person;fingerprints,facehandprints,voice,eye |
| chip creep | a condition in which chips loosen because of thermal changes |
| com1 | communications port 1 |
| com1 | the number assigned a serial port that determines the system resources used by the port |
| crt | cathode ray tube |
| 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 |
| 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 |
| dvi-d | video port that works only with digital monitors |
| dvi-i | video port that supports both analog and digital monitors |
| dxdiag.exe | a windows command to display information about hardware and diagnose problems with diectx |
| ecp | extended capabilities port |
| 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 |
| energy star | green system that satisfies the epa requirements to decrease the overrall consumption of electricity |
| epp | enhanced parallel port |
| epp | allows data to flow in both directions |
| firewire | IEEE 1394 |
| flat panel monitors | lcd monitor |
| 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 |
| hdmi | high definition multimedia interface |
| 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. |
| 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 |
| i.link | IEEE 1393 |
| i/o controller card | an older card that can contain serial,parallel,and game ports and floppy drive and ide connectors |
| ieee 1284 | a standard for parallel ports and cables developed by the institute for electrical and electronics engineers and supported by hardware manufacturers |
| ieee1394 | standards for expansion bus that can also be configured to work as a local bus. |
| 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 |
| infrared transceiver | wirelessly uses infrared technology to support some wireless devices such as keyboards,mice and printers. |
| 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 |
| ir transceiver | infrared transceiver |
| ieee1394 | expected to replace the scsi bus,providing an easy method to install and configure fast i/o devices |
| irda | infrared data association transceiver |
| irda | infrared data association |
| irq | interrupt request |
| irq line | a line on a bus that is assigned to a device and is used to signal the cpu for servicing |
| isochronous data transfer | transfers data continuously without breaks |
| kvm | keyboard video mouse |
| kvm switch | allows you to use one keyboard,mouse and monitor for multiple computers |
| lcd | liquid crystal dispaly |
| lcd monitor | produces an image using a liquid crystal material made of large easily polarized molecules |
| lpt | line printer terminal |
| 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 |
| native resolution | the actual and fixed number of pixels built into an lcd monitor |
| noninterlaced | a type of display in which the electronic beam of a crt monitor draws every line on the screen with each pass |
| refresh rate | the number of times in one second an electronic beam can fill the screen with lines from top to bottom |
| resolution | the number of pixels on a monitor screen that are addressable by software |
| rgb | red green blue |
| rgb | the three colors create a color space that contains three dots,one for each color |
| rs-232c | reference standard |
| rs-232c | interface standard used by a serial port |
| 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 |
| spp | standard parallel port |
| spp | an outdated serial port that allows data to flow in one direction and is the slowest of the three types of parallel ports |
| svga | super vga |
| 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 |
| touch screen | an input device that uses a monitor or lcd panel as a backdrop for user options |
| uart | universal asynchronous receiver transmitter |
| vga | video graphics adapter |
| vga | a basic standard for color resolution in computer monitors that, today, represents the lowest common denominator for compatibility |
| div | digital visual interface |
| ecp | for non-printer peripherals |
| hdmi | digital alternative to consumer analog standards, such as radio frequency (RF) coaxial cable, composite video, S-Video, SCART, |
| every i/o device is controlled by | software |
| internal devices | network card sound card video card |
| primary windows tool to manage hardware devices | device manager |
| energy star | satisfy certain energy conserving standards required by the EPA |
| external i/o | monitor printer mouse keyboard |
| drivers | control i/o devices |
| usb version 1.1 | allows for two speeds |
| basic speed usb | original usb |
| usb version 2.0` | high speed usb |
| usb2 | 480 mbps |
| high speed usb | backward compatible |
| usb3.0 | superspeed usb |
| four wires on a usb cable | two for power. two for communications |
| ps2 ports | not hot swappable |
| parallel port | female connector |
| serial port | male connector |
| IEEE 1394 | firewire |
| rj45 | network port |
| three types of video ports | vga s video ddi |
| video | analog signal |
| a male connctor | flat and wide |
| b male connector | square |
| static data | data referred to byte |
| transmitting data | bits per second |
| advantages of usb | easy to configure plug n play faster |
| usb1.1 | 1.5 mbps and 12 mbps |
| usb2.0 | allows for up to 480 mbps |
| IEEE1394a | firewire 400 |
| IEEE1394b | firewire 800 |
| IEEE1394c | |
| IEEE1394.3 | |
| IEEE1394b | |
| db | data bus |
| parallel | male |
| serial | female |
| db9 pin | |
| db25 pin | |
| spp | standard parallel port |
| epp | enhanced parallel port |
| ecp | extended capabilities port |
| epp | standard port |
| standard part | slowest of three ports |
| epp | centronics port |
| epp | data flows in both directions |
| ecp | bi directional data |
| parallel ports | pink ports |
| ecp | designed to increase speed over epp using a dma channel |
| dma | direct memory access |
| data integrity | gets were its suppose to be and gets there together at the same time |
| IEEE 1284 | epp and ecp |
| analog | sign wave |
| digital | binary 1 and 0 |
| infrared transceiver | obsolete technology due to line of sight issue |
| two ir header pins | receiver and transmitter heads |
| monitor and video card | needed for video output |
| categories of monitors | crt lcd flat panel led |
| led | light emmitting diodes |
| dot pitch | the distance between any two dots |
| primary lights | red green blue |
| lcd monitor | an image using a liquid crystal material made of large easily polarized molecules |
| lcd | can receive digital and analog signalsfrom the video card have two ports to accommadate each |
| pixel | formed by the intersection of the row and column electrodes |
| vesa | video electronics standard association |
| minimum refresh rate | 70hz or 70 complete refreshes per second |
| noninterlaced monitor | progressive monitor |
| interlaced | draws the screen in two passes |
| noninterlaced | draws it in one pass |
| native resolution | actual fixed number of pixels built into the monitor |
| minimum resolution for monitors | 800 x 600 |
| xga | extended graphics array resolution |
| sxga+ | super extended graphics array resolution |
| uxga | ultra extended wide graphics array resolution |
| wuxga | wide ultra resolution |
| convert resolution | horizontal times vertical pixels |
| qwxga | quad wide |
| wqxga | wide quad |
| vram | video ram |
| sgram | synchronous graphics ram |
| wram | window ram |
| mdram | multibank dram |
| 3-d ram | |
| drdram | direct dynamic ram |
| ddr | double data rate |
| ddr2 | double data rate 2 |
| ddr3 | double data rate 3 |
| gddr3 | graphic dynamic direct |
| gddr4 | graphic |
| direct x | microsoft tool that developers can use to write multimedia applications,games |
| direct x components | direct draw direct music direct play direct 3d |
| drivers | handle communicationbetween bios and operating system |
Created by:
cgeaski
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