Karteikarten
Section 1 - Input Devices
Karten in diesem Stapel (27)
- 1Has keys for all letters and special keys such as ESC, ALT, CTRL, SHIFT, and function keys.Keyboard
- 2Smaller versions of keyboards used in devices such as mobile phones.Keypad
- 3A pointing device used to move a pointer around the screen and select options by clicking.Mouse
- 4Has a rolling ball from which the computer senses its position on a flat surface.Mechanical Mouse
- 5Uses a light sensor to detect motion and does not need a mouse mat.Optical Mouse
- 6Has a ball on the surface of the device which is rolled using the fingers or palm of the hand.Trackball
- 7The user moves their finger over a sensitive plate to control the cursor.Trackpad
- 8A small button that works as a joystick and is sometimes seen on mobile phones, PDAs and Laptops.Trackpoint
- 9A keyboard which is divided into areas labelled to suit the actual use.Concept Keyboard
- 10Senses when an area of the screen has been touched, by wires embedded in the screen or by patterns of infra-red light beams.Touch Screen
- 11Used mainly for drawing. A stylus is used to draw on a flat plate.Graphics Tablet
- 12The user speaks into a microphone and the sounds of words are compared to a dictionary of sounds and converted into computer readable text.Speech Recognition
- 13Read data from media that have the data stored on them magnetically or on paper based media which is scanned and interpreted by software.Automated Input
- 14Swiped through a reader and fed into a slot in the machine.Magnetic Strip Card
- 15Has a computer chip built into it so it can have data written to it and hold data.Smart Card (Chip-And-Pin)
- 16Uses radio waves to transmit a unique serial number as a form of ID for objects. A tag is attached and transmits the serial number to a reader which sends the data on a computer.Radio Frequency ID
- 17Used to turn paper based documents into digital images. A beam of light passes across the page and senses the colour of various areas.Scanner
- 18Has a flat glass plate on which the document is placed.Flat-Bed Scanner
- 19Uses a light beam to sense the position of pencil or other marks on a piece of paper. It then allocates a value to the data depending on where the mark is on the paper.Optical Mark Recognition (OMR)
- 20A paper based document is scanned and each part of the image is compared to a dictionary of known letter shapes which are then converted into computer characters.Optical Character Recognition (OCR)
- 21A pattern of black and white lines which represent a number is scanned. The product number is entered into the computer system.Bar-Code Reader
- 22Used by banks to process cheques and other documents. The cheque and account number are printed and read by a magnetic reader to translate them into numbers.Magnetic Ink Character Recognition (MICR)
- 23When a sound is made and fed into a microphone it creates an analogue signal. To be entered into a computer it must be encoded as a digital signal.Sound Input
- 24Made up of many still images played very rapidly in sequence to trick the eye into thinking that the movement is continuous.Video Input
- 25Small video cameras that are often used for video conferencing. Video images are sent to the computer in a continuous stream.Webcam
- 26Usually record digital images of the scene being photographed.Digital Camera
- 27An input device which demands fast response times and need to make the experience feel real.Games Controller
Informationen
- Beschreibung
- AS level IT (Section 01) Karteikarten am Section 1 - Input Devices, erstellt von Eloise Gibb am 21/03/2017.
- Erstellt von
- Eloise Gibb
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