3.4 vocab Flashcards
Peripheral
A device, usually external to a computer, that is plugged into a computer’s communication port or is connected wirelessly. Common peripherals are keyboards, mice, monitors, speakers, and printers.
Touch screen
A display device that allows a user to interact with a computer by touching, tapping, and swiping areas on the screen.
Inkjet printer
A printer that sprays small dots of ink from an ink reservoir onto a sheet of paper.
Laser printer
A printer that uses electrical charges and heat to fuse tiny plastic particles (called toner) to the paper.
Scanner
A device that scans paper documents and converts them into digital files.
Universal Serial Bus (USB)
A common interface used to connect peripherals, such as mice, keyboards, printers, and digital cameras to a computer.
FireWire
An interface used to connect peripherals such as digital cameras and external hard drives to a computer. It is no longer commonly used.
Video Graphics Array (VGA) connector
A connector, identified by its blue color and three rows of pins, that is used to connect older monitors to a computer.
Digital Visual Interface (DVI) connector
A connector, typically white with three rows of eight pins, designed to connect digital monitors to a computer.
High-Definition Multimedia Interface (HDMI) connector
A connector now available on a wide variety of devices such as computers, monitors, TVs, Blu-Ray players, and more. HDMI is used to transfer high-definition signals. It supports both audio and video data.
Registered Jack 45 (RJ-45) connector
Registered Jack 45 (RJ-45) connector
Thunderbolt
An interface primarily used on Apple computers that connects a monitor to a computer and can also provide DC power.
Infrared
A communication technology that uses light waves to transmit information through the air.
Bluetooth
A short-range wireless communication technology used to connect peripherals such as wireless headphones, speakers, keyboards, mice, smart watches, printers, and game controllers to a computer, including smartphones.
Camera lens
A camera component that focuses the light that enters it into a point. Behind the point, the light spreads out again, eventually creating an upside-down image of the light that entered.
