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C2 Vocabulary 037
| Question | Answer |
|---|---|
| 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 |
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skj2005
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