These flash cards cover the input/output devices, mechanical parts and operating systems for computers
There are 82 flash cards in this set (14 pages to print.)
To use:
1. Print out the cards.
2. Cut along the dashed lines.
3. Fold along the solid lines.
Sample flash cards in this set:
| Questions | Answers |
|---|---|
| Pixel | the smallest element in an electronic display |
| Input | any data and instructions entered into the memory of a computer |
| Input Device | any hardware component that allows users to enter data and instructions into a computer |
| Pointing Device | an input device that allows a user to control a pointer on the screen |
| Keyboard | an input device that contains keys users press to enter data and instructions into a computer |
| Ergonomics | incorporates comfort, efficiency and safety into the design of the workplace. |
| Resolution | the number of horizontal and vertical pixels in a display device |
| Voice Recognition | the computer's capability of distinguishing spoken words |
| Video Conference | a meeting between two or more geographically separated people |
| OCR | Optical Character Recognition, reading characters from ordinary documents |
| Bar Code Reader | uses laser beams to read bar codes |
| RFID | Radio Frequency Identification, uses radio signals to communicate with a tag placed in or attached to an object |
| Biometrics | authenticates a person's identity by verifying a personal characteristic |
| Terminal | a computer that allows users to send data to and/or receive information from a host computer |
| Output | data that has been processed into a useful form |
| Output Device | any type of hardware component that conveys information to one or more people |
| Display Devices | visually conveys text, graphics and video information |
| LCD Monitor | Liquid Crystal Display, uses a liquid compound to present information on a display device. Improves resolution, brightness, response time etc. |
| Printers | produces text and graphics on a physical medium |
| Nonimpact Printers | forms characters and graphics on a piece of paper without actually striking the paper |
| Impact Printers | form characters and graphics on a piece of paper by striking a mechanism against an inked ribbon that physically contacts the paper |
| Thermal Printer | generates images by pushing electrically heated pins against the heat-sensitive printer |
| Dot-Matrix Printer | produces printed images when tiny wire pins on a print head mechanism strike an inked ribbon |
| Data Projector | a device that takes the text and images displaying on a computer screen and projects them on a larger screen |
| Interactive Whiteboard | a touch-sensitive device, resembling a dry-erase board, that displays the image on a connected computer screen |
| Storage | holds data, instructions, and information for future use |
| Storage Medium | the physical material on which a computer keeps data, instructions and information |
| Capacity | the number of bytes a storage medium can hold |
| Storage Device | the computer hardware that records and/or retrieves items to and from storage media |
| The Processes of Reading and Writing | Reading 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 Time | measures 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 Disk | contains one or more inflexible, circular platters that use magnetic particles to store data, instructions and information |
| Longitudinal Recording | hard disks can store data using this |
| Perpendicular Recording | hard disks can store data using this |
| Characteristics of Hard Disk | Capacity, Platters, Sectors/Tracks, Read/Write Heads, Cylinders, Revolutions per Minute, Transfer Rate and Access Time |
| RAID | Redundant Array of Independent Disks, a group of two or more integrated hard disks |
| NAS | Network Attached Storage, device is a server connected to a network with the sole purpose of providing storage |
| External Hard Disk | a separate free-standing hard disk that connects to your computer with a cable or wirelessly |
| Disk Controller | consists 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 Storage | chips that are a type of solid state media and contain no moving parts |
| SSD | Solid State Drives |
| Memory Card | a removable flash memory device that you insert and remove from a slot in a computer, mobile device or card reader/writer |
| Cloud Storage | an internet service that provides storage to computer users |
| Optical Disk | consists 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. |
| Hibernate | saves 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 Functions | a 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 Mode | saves any open documents and programs to RAM, turns off all unneeded functions and then places the computer in a low-power state |
| User Interface | controls how you enter data and instructions and how information is displayed on the screen |
| Manage Programs | operating 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 Management | optimizes the use of RAM |
| Spooling | documents to be printed to a buffer instead of sending them immediately to the printer |
| Stand-Alone Operating System | a complete operating system that works on a desktop computer, notebook computer or mobile computing device |
| Utility Programs | a type of system software that allows users to perform maintenance type tasks |
| Disk Defragmenter | reorganizes 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 Utility | reverses the process and returns backed up files to their original form |
| Categories of Operating Systems | Stand-alone, Server, Embedded |
| WiMAX | provides wireless broadband internet access, either fixed wireless or mobile wireless, towers can cover a 30 mile radius |
| Communications | describes a process in white two or more computers or devices transfer data instructions and information |
| Wireless Internet Access Points | allow 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 |
| Network | a collection of computers and devices connected together via communications devices and transmission media |
| Advantages of a Network | facilitating communications, sharing hardware, sharing data and information, sharing software |
| LAN | Local Area network, a network that connects computers and devices in a limited geographical area |
| Network Topology | refers to the layout of the computers and devices in a communications network |
| Wireless Modem | uses the cell phone network to connect to the internet wirelessly from a notebook computer, a smart phone or other mobile device |
| Network Communications Standards | Ethernet- 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 Media | carries one or more signals over a communications channel |
| Communication Software | consists 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 |
| PSTN | Public Switched Telephone Network, a worldwide telephone system |
| Communications Devices | any type of hardware capable of transmitting data, instructions and information between a sending device and a receiving device |
| Turnaround Document | a document you return to the company that creates and sends it |
| OMR | Optical Mark Recognition, reads hand-drawn marks such as small circles or rectangles |
| MICR | Magnetic Ink Character Recognition, devices read text printed with magnetic ink |
| RFID Reader | reads information on the tags of an object via radio waves. |
| GUI | graphical user interface, you interact with menus and visual images |
| Command-Line Interface | a user uses the keyboard to enter data and instructions |
| WLAN | Wireless LAN, a LAN that uses no physical wires |
| MAN | Metropolitan Area Network, connects LANs in a metropolitan area |
| WAN | Wide Area Network, a network that covers a large geographical area |
| Network Card | enables a computer or device to access a network |
| Bandwidth | the amount of data that can travel over a communications channel |
