Tech Terms: Barcodes, RFID, Magnetic Stripes, Biometrics, Output Devices, Storage Media, Quizzes of Microcomputers

Download Tech Terms: Barcodes, RFID, Magnetic Stripes, Biometrics, Output Devices, Storage Media and more Quizzes Microcomputers in PDF only on Docsity! TERM 1 Input DEFINITION 1 is any data entered into the memory of a computer TERM 2 data DEFINITION 2 a collection of unprocessed text, numbers, images, audio, and video TERM 3 program DEFINITION 3 is a series of instructions that tells a computer what to do and how to do it TERM 4 command DEFINITION 4 is an instruction that causes a program to perform a specific action TERM 5 user response DEFINITION 5 is an instruction a user issues by replying to a question displayed by a program TERM 6 input device DEFINITION 6 is any hardware component that allows users to enter data and instructions (programs commands, and users responses) into a computer. TERM 7 keyboard DEFINITION 7 is an input device that contains keys users press to enter data and instructions into a computer TERM 8 enhanced keyboard DEFINITION 8 has twelve or more function keys along the top; it also has two ctrl keys, two alt keys, and a set of arrows and additional keys between the typing area and numeric keypad TERM 9 function keys DEFINITION 9 which are labeled with the letter F followed by a number, are special keys programmed to issue commands to a computer TERM 10 toggle key DEFINITION 10 is a key that switches between two states each time a user presses the key. TERM 21 light pen DEFINITION 21 hand held device that can detect light TERM 22 touch screen DEFINITION 22 touch areas of screen with finger TERM 23 digital pen DEFINITION 23 looks like a ball point pen but uses pressure to write text and draw lines TERM 24 graphic tablets DEFINITION 24 flat electronic boards TERM 25 what are the type of game controllers DEFINITION 25 gamepads joystick/wheel light gun dance pad, motion sensing game controller TERM 26 click wheel DEFINITION 26 The iPod click wheel is the navigation component of several iPod models. TERM 27 voice input DEFINITION 27 process of entering input by speaking into a microphone TERM 28 voice recognition DEFINITION 28 Speech recognition converts spoken words to text. TERM 29 Musical Instrument Digital Interfase (MIDI) DEFINITION 29 external music device i.e. an electric keyboard used to input sound effects into a computer TERM 30 portable keyboard DEFINITION 30 a portable full sized keyboard that communicates with your phone TERM 31 smart phone DEFINITION 31 users can input and send text messages, graphics, pictures, video clips, and sound files TERM 32 tablet pc DEFINITION 32 mobil computer that also has handwriting recognition software TERM 33 digital camera DEFINITION 33 allows you to take digital pictures that you can see instantly TERM 34 resolution DEFINITION 34 the sharpness of the photograph, the higher the resolution the better the photo. TERM 35 pixel DEFINITION 35 picture element in a single point in an electronic image TERM 46 bar code DEFINITION 46 -Identification code that consists of a set of vertical lines and spaces of different widths -POSTNET -Universal Product Code (UPC) TERM 47 RFID reader DEFINITION 47 Reads information on the tag via radio waves TERM 48 magnetic stripe card reader DEFINITION 48 -Reads the magnetic stripe on the back of a credit card - Exposure to a magnetic field can erase the contents of a cards magnetic stripe TERM 49 magnetic-ink character recognition ​(MICR) reader DEFINITION 49 -Can read text printed with magnetized ink -Banking industry almost exclusively uses MICR for check processing TERM 50 data collection device DEFINITION 50 -Obtains data directly at location where transaction or event takes place -Transmits data over network or Internet TERM 51 What is a point of sale (POS) terminal DEFINITION 51 -Records purchases, processes credit or debit cards, and updates inventory TERM 52 automated teller machine (ATM) DEFINITION 52 -Self-service banking machine that connects to a host computer through a network TERM 53 biometrics DEFINITION 53 -Authenticates persons identity by verifying personal characteristic TERM 54 Fingerprint reader DEFINITION 54 captures curves and indentations of fingerprint TERM 55 examples of biometric technology DEFINITION 55 -Voice verification system compares live speech with stored voice pattern-Signature verification system recognizesshape of signature-Iris recognition system reads patterns in blood vessels in back of retina TERM 56 smart card DEFINITION 56 which stores personal data on microprocessor embedded in card TERM 57 output DEFINITION 57 Data that has been processed into a useful form TERM 58 Output device DEFINITION 58 is any hardware component that can convey information to one or more people TERM 59 display device DEFINITION 59 -Output device that visually conveys text, graphics, and video information TERM 60 Monitor DEFINITION 60 -houses display device that is packaged as separate peripheral TERM 71 laser printer DEFINITION 71 -High-speed, high-quality nonimpact printer -Prints text and graphics in high-quality resolution, ranging from 1,200 to 2,400 dpi-Typically costs more than ink-jet printer, but is much faster TERM 72 thermal printer DEFINITION 72 -Generates images by pushing electrically heated pins against heat-sensitive paper TERM 73 mobile printer DEFINITION 73 -Small, lightweight, battery-powered printer that allows mobile user to print from notebook computer, Tablet PC, smart phone, or other personal mobile device while traveling TERM 74 label printers & postage printers DEFINITION 74 -Small printer that prints on adhesive-type material -Most also print bar codes TERM 75 plotter DEFINITION 75 -Sophisticated printer used to produce high-quality drawings - TERM 76 Large-format printer DEFINITION 76 creates photo-realistic-quality color prints TERM 77 dot-matrix printer DEFINITION 77 -Impact printer that produces printed images when tiny wire pins strike ribbon TERM 78 Impact printer DEFINITION 78 forms characters by striking mechanism against inked ribbon that contacts paper TERM 79 line printer DEFINITION 79 -High-speed impact printer that prints entire line at a time - Speed measured in lines per minute (lpm) TERM 80 audio output device DEFINITION 80 -Computer component that produces music, speech, or other sounds - TERM 81 Speakers DEFINITION 81 headsets are common devices TERM 82 facsimile (fax) machine DEFINITION 82 -Device that transmits and receives documents over telephone lines -Converts an original document into a digitized image -Many computers include fax capability TERM 83 multifunction peripheral DEFINITION 83 -Provides functionality of printer, scanner, copy machine, and fax machine TERM 84 data projector DEFINITION 84 -Device that takes text and images from computer screen and projects them onto larger screen -DLP projector -LCD projector TERM 85 an interactive whiteboard DEFINITION 85 -Touch-sensitive device that displays the image on a connected computer screen -SMART board TERM 96 storage device DEFINITION 96 Hardware that records and retrieves items to and from storage media TERM 97 access time DEFINITION 97 -Time it takes storage device to locate item on storage medium -Time required to deliver item from memory to processor TERM 98 hard disk DEFINITION 98 -High-capacity storage -Consists of several inflexible, circular platters that store items electronically-Components enclosed in airtight, sealed case for protection TERM 99 cylinder DEFINITION 99 -Vertical section of track through all platters -Single movement of read/write head arms accesses all plattersin cylinder TERM 100 head crash DEFINITION 100 -Occurs when read/write head touches platter surface - Spinning creates cushion of air that floats read/write head above platter TERM 101 disk cache DEFINITION 101 -Portion of memory that processor uses to store frequently accessed items TERM 102 RAID DEFINITION 102 -Redundant Array of Independent Disks-Connects multiple smaller disks into a single unit that acts as a single large hard disk TERM 103 miniature hard disk DEFINITION 103 -Provide greater storage capacities than flash memory - Smaller than notebook computer hard disks TERM 104 pocket hard drive DEFINITION 104 is a self-contained unit TERM 105 External hard disk DEFINITION 105 freestandinghard disk that connects to system unit TERM 106 Removable hard disk DEFINITION 106 hard diskthat you insert and removefrom hard disk drive TERM 107 disk controller DEFINITION 107 Chip and circuits that control transfer of items from disk TERM 108 online storage DEFINITION 108 Service on Web that provides storage for minimal monthly fee TERM 109 floppy disk DEFINITION 109 Portable, inexpensive storage medium (also called diskette) TERM 110 optical discs DEFINITION 110 -Flat, round, portable metal discs made of metal, plastic, and lacquer TERM 121 memory management DEFINITION 121 -Optimizing use of random access memory (RAM) TERM 122 virtual memory (VM) DEFINITION 122 portion of hard disk is allocated to function as RAM TERM 123 spooling DEFINITION 123 -Sending print jobs to buffer instead of directly to printer TERM 124 queue DEFINITION 124 Print jobs line up in TERM 125 performance monitor DEFINITION 125 -that assesses and reports information about system resources and devices TERM 126 network operating system DEFINITION 126 -Allows users to share resources on a network TERM 127 utility program DEFINITION 127 System software that performs maintenance-type tasks TERM 128 file manager DEFINITION 128 Performs functions related to file management TERM 129 Search utility DEFINITION 129 attempts to locate files on your computer TERM 130 Image viewer DEFINITION 130 displays, copies, and prints contents of graphics file TERM 131 personal firewall DEFINITION 131 Detects and protects a personal computer from unauthorized intrusions TERM 132 disk scanner DEFINITION 132 Searches for and removes unnecessary files TERM 133 disk defragmenter DEFINITION 133 Reorganizes files and unused space on hard disk so that programs run faster TERM 134 diagnostic utility DEFINITION 134 -Compiles technical information about hardware and some software -Prepares report outlining problems TERM 135 backup utility DEFINITION 135 Copies selected files or entire hard disk onto another storage medium TERM 146 virus DEFINITION 146 -Potentially damaging computer program -Affects computer without users knowledge TERM 147 antivirus program DEFINITION 147 -Identifies and removes viruses in memory, storage media, and incoming files -Must be updated frequently TERM 148 spyware DEFINITION 148 Program placed on a computer without the users knowledge that secretly collects information about the user TERM 149 spyware remover DEFINITION 149 is a program that detects and deletes spyware TERM 150 file compression utility DEFINITION 150 Shrinks size of files to free up room and improve performance TERM 151 zipped files DEFINITION 151 Compressed files are sometimes TERM 152 media player DEFINITION 152 Allows you to view images and animation, listen to audio, and watch video files on your computer TERM 153 CD/DVD burning software DEFINITION 153 Writes text, graphics, audio, and video files to a recordable or rewriteable CD or DVD TERM 154 personal computer maintenance utility DEFINITION 154 -Identifies and fixes operating system problems and disk problems -Some continuously monitor computer to identify problems before they occur