comp | Computer peripherals and ports | 3rdQ

• Computer peripherals - additional devices attached to the computer that expand the functionality of the system but are not necessary for basic operation
• Input devices - peripherals that enter data into the computer to be processed.
• Which peripherals allow users to feed information into a computer for processing?

  Input devices
• What are the optional devices that enhance the capabilities of a computer beyond its core functions?

  Computer Peripherals
• Give all 10 Input devices

  1. Barcode scanner
  2. Biometric system
  3. Graphics tablet
  4. Joystick
  5. Microphone
  6. Optical scanner
  7. Webcam
  8. Trackball
  9. MICR Reader
  10. Motion Input devices
• This is a hand-held device capable of reading barcodes by directing a laser beam on it.

  Barcode scanner, barcode reader, or point-to-scale scanner
• This measures a specific area in the human body commonly used for identifying a specific person.

  Biometric system
• It is commonly used to identify a person's identity through fingerprint and other biological traits

  Biometric system
• Give all types of biometric systems and what they identify

  1. Finger scanner - fingerprint
  2. Hand scanner - palm
  3. Face scanner - persons face
  4. Iris scanner - iris of the eye
• This is a hardware device that is commonly used by artists to draw or sketch using the computer

  Graphics tablet
• Other than graphics tablet what are the other 2 names

  drawing tablet and pen tablet
• It is a device that allows users to move objects in a game.

  Joystick
• Allows the users to input audio into their computers. It contains a transducer that converts sound waves into an electric signal which can be amplified as a digital signal that a computer can process

  Mic
• It is a device that uses a light beam to take an image or text and converts it into a digital file allowing the computer to display the scanned objects.

  Optical Scanner
• It is a digital device attached to a computer. It is used to broadcast video on the web or the internet.

  Webcam
• This device may also be used to capture images on the computer screen by hitting a specific key on the keyboard. they connect to the computer via USB

  Webcam
• This is a pointing device that requires less arm and wrist motion than the regular mouse.

  Trackball
• It is used also like a mouse but it has a movable ball on top which used to direct the cursor to the desired places on the screen.

  Trackball
• It is a secure and high-speed input device that is used to read and verify the originality of paper documents like cards and cheques.

  MICR reader or Magnetic Ink Character Recognition Reader
• MICR - Magnetic Ink Character Recognition
• These are wired or wireless technology which enables a user to guide on-screen elements by moving a handheld inout device through the air.

  Motion Input Device
• These devices were originally intended for gaming, but developers found uses in the military, athletic, and medical fields.

  Motion Input Devices
• Peripherals that allow computer to deliver information to the users.

  Output devices
• Device that uses light and lenses to display a larger version of any information on a flat surface

  Projector
• Hardware devices connected to a computer's sound card

  Speakers
• They generate audio output that can be heard by listeners

  Speaker
• They allow users to listen to a sound himself without other people hearing it.

  Headphones
• Devices attached to a keyboard which allows a blind person to read the text displayed on the screen.

  Braille reader or Braille Terminal
• Give all 4 Output devices.

  1. Projector
  2. Speaker
  3. Headphones
  4. Braille reader or Braille Terminal
• These are peripheral capable of putting information while generating results

  Input/Output devices or I/O devices
• They store pictures and videos in electronic format instead of film format

  Digital Camera
• Devices that specialize in taking and storing videos with sound to the device itself. They can be immediately watched after recording

  Video Cameras
• This allows users to talk and listen to and from the computer while keeping their hands free

  Headset
• These allow computers to communicate with the outside world. It is commonly used to connect computers to the Internet, but can also be used to communicate directly with another computer

  Modems
• Give all 4 Input/Output devices or I/O devices

  1. Digital Camera
  2. Video Camera
  3. Headset
  4. Modems
• Ports serve as a connection point between computers and external or internal devices.
• Give all the types of ports

  1. Serial port
  2. Parallel port or Printer port
  3. VGA Port or Video graphic array port
  4. USB ports or Universal serial bus ports
  5. PS/2 Ports
  6. Power Ports
  7. Ethernet port
  8. Game Port
  9. Sockets
• Serial port enables external modems to connect to a computer and net form rounder via a serial cable.
• Parallel port is only used for old model printers. It is a female port that has 25 pins and is also called printer port
• VGA port connects the monitor to the video card