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C2 Vocabulary 037

Equitable Access robust and reliable access to current and emerging technologies and digital resources, with connectivity for all students, teachers, staff, and school leaders is necessary to effectively leverage technology for learning.
Access Options Ex. One or more stand alone computers, computers connected to a printer/scanner, or mobile technology available for check out
Computer System The computer and other support devices also known as peripheral devices
Central Processing Unit also known as CPU is located inside the computer body in the form of computer chips, is composed of three units that work together
Control Unit retrieves the instructions and sends command signals to the rest of the computer system to tell them what to do
Arithmetic Logic Unit is the sector of the CPU that performs the mathematical calculations that are required in many data processing programs
Memory Unit allows storage of information, is internal to the computer, and is divided into two types of memory (RAM and ROM)
RAM is temporary memory that is designed to hold new data and is available only while the computer is turned on
ROM is permanent internal memory inside the system, is inaccessible by the user, and is used to store the instructions that are installed or programmed at the manufacturer
Binary Coding System AKA American Standard Code for Information Interchange (ASCII) a code made up of a series of zeros and ones
Bit is the smallest unit of binary information
Byte eight bits make a byte which can represent one alphabetic (A, B, C) or one numeric (1, 2, 3) character of information.
Kilobytes 1 K or approximately 1 ,024 keyboard characters of information
Processor Speed conveys how fast data can be moved in and out of the memory
Megahertz (MHz) A form of processor speed that equals one million cycles per second
Gigahertz GHz A form of processor speed which equals one billion cycles per second
Cache provides a temporary storage area that provides a quick access to information
Megabyte 1 MB or approximately a million keyboard characters of information
Gigabyte 1 GB or approximately a billion keyboard characters of information
Terabyte 1 TB or approximately a trillion keyboard characters of information
Peripheral Devices input the information, output the information into a form that is easily read by the user, or store the information for later use
Input Devices allow the input of data into the computer. Examples: keyboards, mice, scanners, graphic tablets, microphones, digital cameras
Keyboard offer the input of alphabetic and numeric information, as well as additional operational and input keys
Mouse a hand-operated electronic device that controls the coordinates of a cursor on your computer screen as you move it around on a pad; on the bottom of the device is a ball that rolls on the surface of the pad. Ex. Track ball, touch pad and wireless mice
Mouse Pad allows good movement of the mouse—and comes in many trendy designs
Joysticks A game device
Scanner an input device that is connected to the computer through a port connection, and that allows the conversion of a printed page (which is a type of analog data) of text or graphics to digital format
Optical Character Recognition (OCR) Conversion of text
Graphics Tablets A stylus is a pen-shaped tool that is designed to press on the tablet surface with no resulting damage
Audio sound produced from the computer
External Microphone External microphones must be plugged into a connective port on the back of the computer before using
Sound Card allows the input of sound into the computer
Headphones A pair of earphones typically joined by a band placed over the head, for listening to audio signals such as music or speech
Video can be input into the computer with the use of digital cameras, video cameras, or Web cams
Digital Cameras are cameras that are capable of inputting data into a computer instead of onto film, and are common tools in teaching and learning across grade levels.
Digital Video Cameras can record video that can be input into the computer with specialized software and cables
Web Cam a tiny camera that sits on (or is part of) the computer and feeds video directly into the computer
Pen Input; Personal Digital Assistant (PDA) These small, portable tools allow the user to input handwritten notes on a small screen using a special pen or a tiny keyboard
Tablet Computers complete computer systems in a slate format
Interactive White Boards These boards serve the same purpose as a traditional blackboard, yet they offer outstanding functionality, serving as dry erase and interactive whiteboards
Classroom Response System AKA Clicker is a handheld device that resembles a TV remote that allows students to respond to questions posed by the instructor
Output Devices produce the data after it has been processed in hard copy (paper for permanent media) or soft copy (displayed on the screen or nonpermanent means)
Computer Monitors (Screens or displays) They display information on the screen, where it can be edited and sent to the printer
Cathode Ray Tube (CRT); Liquid Crystal Display (LCD) the choice between the two affects price, viewing area, space on the desktop, and crispness of the output
Monitor Size is measured diagonally from corner to corner
Resolution defines the clarity of the image that is seen on the computer screen
Pixel is a single colored square on the screen
Printer outputs the data after it has been processed
Hard Copy or a readable, permanent copy
Dots Per Inch (dpi) the way resolution is measured
Ink Jet Printers produce characters by squirting minute amounts of ink on the page
Laser Printers produce the highest quality output
Transparencies thin sheets of transparent plastic, for use with overhead projectors
Speakers are built into the computer or monitor, and others are external to the computer and must be plugged into ports at the back of the computer
Data Projection Units combine a liquid crystal display (LCD) unit with a light source
Lumens The way the brightness of the projector is measured
Document Cameras display slides, transparencies, text, documents, 3D objects, and microscopic objects
Portable Media Players are portable devices that store and play audio such as music or podcasts and/or audio and video
Storage Devices allow storage of data for later use
Internal Storage offered within the computer by way of a computer hard disk drive, or hard drive
Hard Disk Drive holds large amounts of information and is significant in the purchasing decision of a new computer system
External Hard Disk Drives can be connected to the computer through cables; these allow large quantities of data to be moved from one physical location to another
Universal Serial Bus (USB) Drives and provide great flexibility in mobile storage devices
Compact Disc Options CD-ROMs, CD-R, CD-RW
CD-ROMs compact disc—read-only memory; are removable and hold approximately 650 MB of information
CD-R compact disc—recordable allows the user to record data once for storage purposes; after information is recorded it cannot be edited
CD-RW compact disc—rewritable, also allows the recording of data, but also allows the user to edit the information after disc creation
DVD-ROM digital versatile disc—read-only; memory store data on both sides of the disc, as opposed to the one-sided capability of the CD-ROM. A DVD can store approximately 4.7 GB of information.
Blue-ray Disc a blue laser is used to read or write on this disc
Port are generally located on the back of the desktop or laptop computer although newer computer models may offer some ports on the sides or front
Parellel Ports used to connect a computer to a printer
USB Ports provide an easy, universal way to connect an array of devices and provide faster transfer of information to printers, scanners, digital cameras, storage drives, modems, speakers, and other devices
USB Hub can provide additional ports
Ethernet Port is used for high-speed connection to the Internet or another network, such as an intranet, or internal network
Firewire Ports provide a very fast connection to transfer large amounts of data quickly
System Software is a part of each computer system
Application Software allows the computer to carry out specific functions, such as word processing, creation of databases and spreadsheets
Instructional Software which presents content in tutorial, simulation, instructional game, problem solving, and drill-and-practice forms
Assistive Technology (AT) includes devices for special needs students, such as readers, special keyboards, etc
Screen Magnifier fits over the computer monitor and magnify the images that appear on the screen
Anti-Glare Filters are clear screens that fit over a computer monitor to reduce glare from overhead lights and large windows
Monitor Mounts allow the placement of the monitor in the most easily seen position
Speech Output Software which audibly speaks screen content and commands
refreshable Braille display presents a line of text from the screen in Braille format by raising pinpoints under a membrane.
Arm and Wrist Supports stabilize the placement of the arms, wrists, and hands
Alternate Keyboards offer input options in size, layout, and complexity
Key Guards are hard plastic covers with holes for each key
Moisture Guards are thin sheets of plastic that protect keyboards from spills and any unwanted liquids
Alternative Labels are taped or glued to tops of frequently used keys on the standard keyboard
Adjustable wand or stick a pointing or typing aid
Touch Screens allow direct selection or operation by touching the appropriate area of the screen
Switches can be used as an alternative to the keyboard
Electronic Pointing Devices allow the user to control the cursor using ultrasound, an infrared beam, eye movements, nerve signals, or even brain waves
Printed Text Translated Into Digitized Text which can then be converted to auditory or tactile formats
Braille Translator a software product that converts text, either obtained by scanning or produced by a word processor, into Braille
PAC Mate is a PDA designed for blind or low-vision users
Created by: skj2005