Across
- 1. tubes : A vacuum tube computer, now termed a first-generation computer, is a computer that uses vacuum tubes for logic circuitry.
- 5. Serial Bus (USB) : is an industry standard that establishes specifications for cables and connectors and protocols for connection, communication and power supply between computers, peripherals and other computers.
- 8. Disc (CD) : are small plastic discs which store and retrieve computer data or music using light.
- 9. printer: is a type of computer printing that recreates a digital image by propelling droplets of ink onto paper and plastic substrates.
- 11. printer : a printer linked to a computer producing good-quality printed material by using a laser to form a pattern of electrostatically charged dots on a light-sensitive drum, which attract toner (or dry ink powder).
- 12. Peripherals : An output device is any device used to send data from a computer to another device or user.
- 14. : a machine for printing text or pictures onto paper, especially one linked to a computer.
- 17. Printer :a machine allowing the creation of a physical object from a three-dimensional digital model, typically by laying down many thin layers of a material in succession.
- 20. :A touchpad or trackpad is a pointing device featuring a tactile sensor, a specialized surface that can translate the motion and position of a user's fingers to a relative position on the operating system that is made output to the screen.
- 21. :a movable indicator on a computer screen identifying the point that will be affected by input from the user, for example showing where typed text will be inserted.
- 22. : peripheral device is ancillary device used to put information into and get information out of the computer.
Down
- 2. : a small handheld device that is dragged across a flat surface to move the cursor on a computer screen, typically having buttons that are pressed to control functions.
- 3. : a video camera that inputs to a computer connected to the Internet, so that its images can be viewed by Internet users.
- 4. : a device which converts an electrical audio signal into a corresponding sound.
- 6. peripherals : (piece of computer hardware equipment) used to provide data and control signals to an information processing system such as a computer or other information appliance.
- 7. is an output device that displays information in pictorial form.
- 10. : a panel of keys that operate a computer or typewriter.
- 13. : is a semiconductor device used to amplify or switch electronic signals and electrical power. It is composed of semiconductor material usually with at least three terminals for connection to an external circuit.
- 15. circuit : an electronic circuit formed on a small piece of semiconducting material, performing the same function as a larger circuit made from discrete components.
- 16. : typically represented by values of a physical quantity such as voltage or magnetic polarization.
- 18. Drivers : is a computer program that operates or controls a particular type of device that is attached to a computer
- 19. : is a proprietary audio/video interface for transmitting uncompressed video data and compressed or uncompressed digital audio data from an HDMI-compliant source device