Chapter 3
Terms
undefined, object
copy deck
- output devices
- devices that enable the computer to give the user the results of the processed data
- trackball
- pointing device that works like a mouse turned upside down; controls the movement of the on-screen pointer
- touch screen
- input device where you use your fingers to "point" to an object on the screen
- hard drive
- contained within your computer's tower, the hard drive provides the PC's main storage area it contains my documents, and all the other folders and programs on the C: drive
- function keys
- keys on the keyboard that are used to give commands
- resolution
- the number of pixels or dots that a monitor can display
- parallel ports
- ports used to physically connect input and output devices to the computer. parallel ports transmit data eight bits at a time
- Flash drive
- portable storage device that plugs into a USB port
- voice recognition
- input devices used to "speak" commands into the computer and to enter text
- virus
- computer program that's written to cause corruption of data
- malware
- a type of computer program used by hackers and unscrupulous advertising agencies to spy on computer users. these programs make computers less efficient 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!
- 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
- CD-ROM
- disk that can store up to 680 MB of data; data can only be read from it
- USB ports
- a new type of port that's taking the place of all the other ports--more powerful and versatile than parallel ports
- input devices
- enables the user to input data and commands into the computer
- keyboard
- device that allows a user to enter text and or simple commands