Printable Flash Cards
Computer Technology template



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This set includes the following cards:
QuestionsAnswers
Pixelthe smallest element in an electronic display
Inputany data and instructions entered into the memory of a computer
Input Deviceany hardware component that allows users to enter data and instructions into a computer
Pointing Devicean input device that allows a user to control a pointer on the screen
Keyboardan input device that contains keys users press to enter data and instructions into a computer
Ergonomicsincorporates comfort, efficiency and safety into the design of the workplace.
Resolutionthe number of horizontal and vertical pixels in a display device
Voice Recognitionthe computer's capability of distinguishing spoken words
Video Conferencea meeting between two or more geographically separated people
OCROptical Character Recognition, reading characters from ordinary documents
Bar Code Readeruses laser beams to read bar codes
RFIDRadio Frequency Identification, uses radio signals to communicate with a tag placed in or attached to an object
Biometricsauthenticates a person's identity by verifying a personal characteristic
Terminala computer that allows users to send data to and/or receive information from a host computer
Outputdata that has been processed into a useful form
Output Deviceany type of hardware component that conveys information to one or more people
Display Devicesvisually conveys text, graphics and video information
LCD MonitorLiquid Crystal Display, uses a liquid compound to present information on a display device. Improves resolution, brightness, response time etc.
Printersproduces text and graphics on a physical medium
Nonimpact Printersforms characters and graphics on a piece of paper without actually striking the paper
Impact Printersform characters and graphics on a piece of paper by striking a mechanism against an inked ribbon that physically contacts the paper
Thermal Printergenerates images by pushing electrically heated pins against the heat-sensitive printer
Dot-Matrix Printerproduces printed images when tiny wire pins on a print head mechanism strike an inked ribbon
Data Projectora device that takes the text and images displaying on a computer screen and projects them on a larger screen
Interactive Whiteboarda touch-sensitive device, resembling a dry-erase board, that displays the image on a connected computer screen
Storageholds data, instructions, and information for future use
Storage Mediumthe physical material on which a computer keeps data, instructions and information
Capacitythe number of bytes a storage medium can hold
Storage Devicethe computer hardware that records and/or retrieves items to and from storage media
The Processes of Reading and WritingReading is the process of transferring items from a storage medium into memory. Writing is the process of transferring items from memory to a storage medium
Access Timemeasures the amount of time it takes for a storage device to locate an item on a storage medium and the time required to deliver an item from memory to the processor
Hard Diskcontains one or more inflexible, circular platters that use magnetic particles to store data, instructions and information
Longitudinal Recordinghard disks can store data using this
Perpendicular Recordinghard disks can store data using this
Characteristics of Hard DiskCapacity, Platters, Sectors/Tracks, Read/Write Heads, Cylinders, Revolutions per Minute, Transfer Rate and Access Time
RAIDRedundant Array of Independent Disks, a group of two or more integrated hard disks
NASNetwork Attached Storage, device is a server connected to a network with the sole purpose of providing storage
External Hard Diska separate free-standing hard disk that connects to your computer with a cable or wirelessly
Disk Controllerconsists of a special purpose chip and electronic circuits that control the transfer of data, instructions, and information from a disk to and from the system bus and other components of the computer
Flash Memory Storagechips that are a type of solid state media and contain no moving parts
SSDSolid State Drives
Memory Carda removable flash memory device that you insert and remove from a slot in a computer, mobile device or card reader/writer
Cloud Storagean internet service that provides storage to computer users
Optical Diskconsists of a flat, round portable disk made of metal, plastic and lacquer that is written and read by a laser. Stores software, data, photos etc.
Hibernatesaves any open documents and programs to a hard disk before removing power from the computer
System Software (2 Categories)consists of the programs that control or maintain the operations of the computer and its devices
Operating System Functionsa set of programs containing instructions that work together to coordinate all the activities among computer hardware resources. Used to start and shut off a computer, manage memory, manage program, etc.
Sleep Modesaves any open documents and programs to RAM, turns off all unneeded functions and then places the computer in a low-power state
User Interfacecontrols how you enter data and instructions and how information is displayed on the screen
Manage Programsoperating systems handle programs in a way that will be more productive. single user and multi-user, single tasking and multitasking, foreground and background, preemptive multitasking, multiprocessing
Memory Managementoptimizes the use of RAM
Spoolingdocuments to be printed to a buffer instead of sending them immediately to the printer
Stand-Alone Operating Systema complete operating system that works on a desktop computer, notebook computer or mobile computing device
Utility Programsa type of system software that allows users to perform maintenance type tasks
Disk Defragmenterreorganizes the files and unused space on a computer's hard disk so that the operating system accesses data more quickly and programs run faster
Restore Utilityreverses the process and returns backed up files to their original form
Categories of Operating SystemsStand-alone, Server, Embedded
WiMAXprovides wireless broadband internet access, either fixed wireless or mobile wireless, towers can cover a 30 mile radius
Communicationsdescribes a process in white two or more computers or devices transfer data instructions and information
Wireless Internet Access Pointsallow people to connect wirelessly to the Internet from home, work, school and in many public locations
Global Positioning System (GPS)a navigation system that consists of one or more earth-based receivers that accept and analyze signals sent by satellites in order to determine the GPS receiver's geographic locatin
Networka collection of computers and devices connected together via communications devices and transmission media
Advantages of a Networkfacilitating communications, sharing hardware, sharing data and information, sharing software
LANLocal Area network, a network that connects computers and devices in a limited geographical area
Network Topologyrefers to the layout of the computers and devices in a communications network
Wireless Modemuses the cell phone network to connect to the internet wirelessly from a notebook computer, a smart phone or other mobile device
Network Communications StandardsEthernet- a network standard that specifies no computer controls when data can be transmitted Token Ring- a standard that specifies that computers and devices on the network share or pass a special signal (token) TCP/IP- a network standard that defines how messages are routed from one end of a network to another
Transmission Mediacarries one or more signals over a communications channel
Communication Softwareconsists of programs that help users establish a connection to another computer or network, manage the transmission of data, instructions and information, provide an interface for users to communicate with one another
PSTNPublic Switched Telephone Network, a worldwide telephone system
Communications Devicesany type of hardware capable of transmitting data, instructions and information between a sending device and a receiving device
Turnaround Documenta document you return to the company that creates and sends it
OMROptical Mark Recognition, reads hand-drawn marks such as small circles or rectangles
MICRMagnetic Ink Character Recognition, devices read text printed with magnetic ink
RFID Readerreads information on the tags of an object via radio waves.
GUIgraphical user interface, you interact with menus and visual images
Command-Line Interfacea user uses the keyboard to enter data and instructions
WLANWireless LAN, a LAN that uses no physical wires
MANMetropolitan Area Network, connects LANs in a metropolitan area
WANWide Area Network, a network that covers a large geographical area
Network Cardenables a computer or device to access a network
Bandwidththe amount of data that can travel over a communications channel



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