Zusammenfassung der Ressource
INPUT DEVICES 4
- web camera
- a video camera that feeds or streams its image in real time or through a computer to computer network
- the video stream may be saved, viewed or sent on to other networks via systems such as the internet.
- generally connected by a USB cable, a similar cable or built into computer hardware, such as laptops
- microphone
- an acoustic-to-electric transducer or sensor that converts sound to an electronic
signal.
- used in many applications from telephones to knock
sensors.
- need to plugged into a preamplifier before the signal can be amplified with an audio power amplifier and a speaker or
recorded
- graphic tablet
- a computer input device that enables a user to hand-draw images.
- animations
- graphics
- can also be used to trace an image from a piece of paper which is taped or secured to the tablet's surface.
- may also be used to capture data or handwritten signatures
- scanner
- scanners for invisible radiation
- scanner (radio)
- an outside broadcasting control vehicle
- a rotating radar antenna
- (near) light
- image scanner
- barcode reader
- laser scanner
- computer software
- port scanner
- virus scanner(antivirus)
- biometric scanner
- digital camera
- encodes digital images and videos digitally and stores them for later production
- shares an optical system with a film camera.
- incorporated into many devices ranging from PDAs to mobile phones
- touch screen
- an input device normally layered on the top of an electronic visual display of an information processing system
- a user can input or control the touch screen by touching the screen with a special stylus, pen or fingers.
- using simple or multi-touch gestures.
- enables users to interact with what is displayed on a screen
- video camera
- used for electric motion picture acquisition.
- initially developed for the television industry.
- now common in other applications as well.