chapter 3
Terms
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copy deck
- flash drive
- portable storage device that plugs into usb port.
- malware
- a type of computer program used by hackers and unscrupulous advertising agencies to spy on the computer users. these programs make computers less efficent and slow,and sometimes provide thieves with important information. they can also "hijack" a computer and use it to crash a website without the computer owner's knowledge!
- CD-rom
- Disk that can store up to 680 mb of data; data can only be read from it.
- resolution
- the number of pixels or dots that a monitor can display.
- serial ports
- ports used to physically connect input and output devices to the computer. serial ports transmit data one bit at a time.
- DVD
- also called digital versatile disk; full-length movies can be stored on this medium.
- hard drive
- contained within your computer's tower, the hard drive provides the pc's main storaage area. it contains my documents, and all the other folders and programs on the C: drive.
- touch screen
- input device where you use your fingers to "point" to an object on the screen.
- output devices
- devices that enable the computer to give the user the results of the processed data.
- input devices
- enables the user to input data and commands into the computer
- function keys
- keys on the keyboard that are used to give commands to the computer
- virus
- computer program that's written to cause corruption of data.
- Voice recognition
- input devices used to "speak" commands into the computer and to enter text.
- keyboard
- devices that allows a user to enter text and /or simple commands
- usb ports
- a new type of port that's taking the place of all the other ports--more powerful and versatile than parallel ports.
- trackball
- pointing device that works like a mouse turned upside down; controls the movement of the on-screen pointer.
- parallel ports
- Ports used to physically connect input and output devices to the computer. Parallel ports transmit data eight bits at a time.