computing

computing

1. input webcam

2. output pen

   • keywords
     • storage
       • montor
         • hardrive
           • processor
             • technology
               • microphone
                 • ps4 controller
                   • touchscreen
                     • flat bed scanner
                       • scanner
                         • bar code reader
                           • projector
                             • joystick
                               • video capture card
                                 • tablet
                                   • ipad
                                     • camcorder
                                       • digital camera
                                         • television
                                           • speaker
                                             • usb
                                               • the main technology used in home remote controls is infrared light. the signal between a remote control handset and the device it controls consists of pulses of infrared light which is invisible to the human eye but can be seen through a digital camera video camera or a phone camera
                                                 • remote control
                                             • Animation: Right: How a loudspeaker works. When a fluctuating electric current flows through the coil (orange), it becomes a temporary electromagnet, attracted and repelled by the permanent magnet (blue/red). As the coil moves, it moves the cone (gray) back and forth, pumping sound waves into the air (light blue).23 Feb 2016
                                         • A digital camera takes light and focuses it via the lens onto a sensor made out of silicon. It is made up of a grid of tiny photosites that are sensitive to light. Each photosite is usually called a pixel, a contraction of "picture element".
                                       • Most devices capable of recording video are camera phones and digital cameras primarily intended for still pictures; the term "camcorder" is used to describe a portable, self-contained device, with video capture and recording its primary function.
                                     • video player
                                       • dvd player
                                 • Image result for how does a video camera work Modern electronic camcorders use digital video. Instead of recording photographic images, they use a light sensitive microchip called a charge-coupled device (CCD) to convert what the lens sees into digital (numerical) format.5 Oct 2015 How do movie cameras and camcorders work? -
                               • A joystick is an input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling. Joysticks are often used to control video games, and usually have one or more push-buttons whose state can also be read by the computer.
                             • in an lcd tv projector a very bright light shines through a small lcd screen into a lens which throws a hugely magnified image of the screen onto the wall. the technology is sometimes called lclv
                           • A barcode reader (or barcode scanner) is an electronic device that can read and output printed barcodes to a computer. Like a flatbed scanner, it consists of a light source, a lens and a light sensor translating optical impulses into electrical ones.
                     • ticket machine
                       • laser cutter
                         • Laser cutting is a technology that uses a laser to cut materials, and is typically used for industrial manufacturing applications, but is also starting to be used by schools, small businesses, and hobbyists. Laser cutting works by directing the output of a high-power laser most commonly through optics.
                   • The first time you use a controller or when you want to use the controller on another PS4™ system, you'll need to register (pair) it with your system. Connect the controller to your system with a USB cable while the system is on.
                 • Microphones are a type of transducer - a device which converts energy from one form to another. Microphones convert acoustical energy (sound waves) into electrical energy (the audio signal). Different types of microphone have different ways of converting energy but they all share one thing in common: The diaphragm.
           • A hard disk drive (HDD), hard disk, hard drive or fixed disk [b] is a data storage device used for storing and retrieving digital information using one or more rigid ("hard") rapidly rotating disks (platters) coated with magnetic material.
       • In modern personal computers, most secondary and tertiary storage media are also used for off-line storage. Optical discs and flash memory devices are most popular, and to much lesser extent removable hard disk drives. In enterprise uses, magnetic tape is predominant.

3. input

   • keyboard
   • mouse
     • Optical mouse. An optical computer mouse uses a light source, typically an LED, and a light detector, such as an array of photodiodes, to detect movement relative to a survey. It is an alternative to the mechanical mouse, which uses moving parts to sense motion.
   • computer
     • the computer does its converts data input to primary work in a part of the machine we can not see a controll centre that imformation output. this control centre is called the central processing unit cpu is a highly complex exspensive set of electronic circuity that executes stored program instructions

4. output

   • printer
   • radio
   • headphones
     • Large headphones are essentially just two loudspeakers mounted on a strap that clamps firmly over your head. Earbuds work the same way but, as you would expect, everything inside them (the magnet, the coil of wire, and the diaphragm cone that makes sound) is shrunk down to a much smaller size.11 Jan 2016