computer 6

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Across
  1. 2. OS X multitasking operating system that is the latest version of the Macintosh operating system
  2. 3. a large digital computer serving 100-400 users and occupying a special air-conditioned room. Generally used by business or gov’t to provide central storage processing and mangt. For large amounts of data
  3. 5. Network Address Translation. A service that translates public IP addresses to private and private IP addresses to public. It hides addresses on an internal network.
  4. 6. metropolitan area network: public high speed network that can transmit voice and data within a range of 50 miles
  5. 8. a short electromagnetic wave (longer than infrared but shorter than radio waves)
  6. 9. programs such as worms, and bots designed to disrupt computers operations
  7. 11. Windows The most popular and powerful PC operating system; uses a graphical user interface.
  8. 12. The main circuit board of a microcomputer. The motherboard contains the connectors for attaching additional boards.
  9. 13. The ability of a computer to run two or more distinct computer operations simultaneously—one in the foreground, the other(s) in the background.
  10. 14. storage: Means of recording data as light and dark spots on CD or DVD with the use of a low-power laser light.
  11. 15. topology: the topology of a network whose components are all connected directly to every other component
  12. 16. language a low level language written by binary code that the computers can execute directly
  13. 17. A network model where all computers on the network are equal and data may be shared from computer to computer.
  14. 18. chart a diagram that shows the hierarchy of workers in an organization
  15. 21. storage a technology for recording data onto disks or tape by magnetizing particles of an oxide based surface coating.
  16. 23. Systems with less capacity, such as dial-up Internet access: communication channel that has low bandwidth
  17. 24. a special set of symbols that used to restrict access to a user’s computer or network
  18. 26. The results produced by a computer.ex: reports, graphs, music
Down
  1. 1. processing simultaneous processing by more than one processing unit to execute a prog.
  2. 3. information system System used to extract data from a database and compile reports that help managers make routine decisions
  3. 4. personal area network: interconnected gp. Of personal digital devices located within a range of 30 ft.
  4. 6. : computer hardware that allows information to be passed through the telephone lines. Device that modulates and demodulates a signal
  5. 7. source An approach to developing and licencing software in which the source code remains public so it can b improved and freely distributed
  6. 10. A technique for formatting signals in which one property of a simple carrier wave is modified by the addition of a data signal during transmission.
  7. 11. statement a short, specific written statement of the reason a business exists and what it wants to achieve. Goals and how they will be achieved
  8. 12. modeling: A mathematical model is a description of a system using mathematical concepts and language. math science and engineers
  9. 14. planning the scheduling and monitoring of workers and processes
  10. 19. system the software that controls the computers use of its hardware resources, such as memory and disk storage space
  11. 20. personal digital assistant
  12. 21. the comp. circuitry that holds data waiting to be processed
  13. 22. Operating system An operating system that runs on a network server.
  14. 23. computer An extremely lightweight personal computer. Notebook computers typically weigh less than 6 pounds and are small enough to fit easily in a briefcase.
  15. 25. social networks online social communities-blogs, social networking web sites, or even virtual worlds- where people socialize or exchange information and opinions