Operating Systems
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| Computer | machine which can be programmed to control symbols
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| Personal Computer (PC) | small, single-user computer; used in homes and businesses; based on a microprocessor
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| Work Station | powerful, single-user computer; more powerful microprocessor than PCs
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| Microprocessor | chip which is the master control circuit of a computer
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| Minicomputer | multi-user computer designed to handle hundreds of users at the same time
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| Mainframe | powerful, multi-user computer; can support hundreds or thousands of users simultaneously
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| Supercomputer | extremely fast computer; can perform hundreds of millions of instructions every second
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| Operating System | program which acts as a boundary between a computer user and the computer itself
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| Hardware | physical and mechanical components of a computer such as the monitor, mouse, chips, keyboard, etc.
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| Software | programs which direct the operation of computers; instructions for a computer
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| Real-Time Operating System | used for real-time applications such as thermostats, mobile phones, spacecrafts, etc.
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| Single-User Single-Task Operating System | allows users to do only one thing at any given time
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| Single-User Multi-Task Operating System | allows the user to run several computer applications at the same time
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| Graphical User Interface | allows users to operate computers without knowing the language used to communicate with an operating system
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| Multi-User Operating System | allows multiple users to simultaneously use the programs on a single computer
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| Unix | designed to be a small, flexible system for use by computer programmers
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| Computer Programmer | a person who designs, writes and installs computer programs and applications
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| Linux | variation of the Unix operating system
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| Source Code | tags and instructions developed by the creator which tell the foundation of the system and how it was created
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| Network | system for communication between two or more computers
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| Wireless Connection | connects computers without the use of cables or wires
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| Electromagnetic Waves | method of travel for information from computer-to-computer; consists of light waves, radio waves, microwaves, etc.
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| Local Area Network (LAN) | local, privately owned networks
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| Wide Area Network | network which provides connections between computers in multiple locations
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| Metropolitan Area Network | high-speed network designed to link together metropolitan size areas, campuses or school districts
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| Controlled Area Network | used for real-time control operations
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| Personal Area Network | covers the small area around a user’s workspace
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| Internet | worldwide, publicly accessed network
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| Network Messages | allows users to send messages from one computer to another through the Internet
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| Server | allows equipment such as fax machines, printers and files to be “served” to multiple computers
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| Firewall | serves as a security device between a computer and Internet sites or between multiple computer networks
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| Transmission Control Protocol/Internet Protocol | helps distinguish individual computers since there are millions on the Internet
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| Network Router | hardware device connected to multiple channels for different networks through an interface
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| Network Interface Card | device provides the physical connection between the network and the computer workstation
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| Network switch | device providing a central connection point for cable from workstations
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| Network Bridge | device dividing traffic on a local area network
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| Transaction Processing System | record and document all of a business’s recurring and routine transactions
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| Operating Information System | plan and schedule production and assembly functions
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| Decision Support System | make use of computing tools, mathematical and scientific modes of its analysis
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| Information System Security | protecting a business or organization’s data assets
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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