Input,Output and Storage Devices

Input,Output and Storage Devices

1. Input Devices

   • Keyboard
     • when you press a key it pushes a certain switch underneith it and it is attached to different wires which is attached to a bigger wire inside the computer and it desplays on the monetor
   • Mouse
     • Your mouse senses your motion and your clicks and sends them to the computer so it can respond appropriately.
   • Chip and Pin Device
     • The gold bit goes in first and you type in your PIN which shows the owner its the genuin owner of the card and then lets the shop take the right amount of money out of your account.
   • Microphone
     • In computing they can be used with voice recognition software and a word processing application to enter text.
   • Camera
     • Consists of a lightproof box which lets in a small amount of light at the right moment which makes millions of tiny dots that forms a picture
   • Optical Pen
     • Packed with electronic circuits, optical devices, and Bluetooth gizmos, they can record the things you write as you write them and transmit them automatically to your computer using wireless technology.
   • barcode reader
     • A barcode reader has a red light which is a senser that can pick up the pattern and numbers of the barcode on a sertain object which then sends the price and object to a screen.
   • Joy Stick
     • joysticks are used to control machinery such as cranes. By letting you move it around controlling a sertain thing such as the claw
   • Controller
     • When you press a button it will send a signal via bluetooth or wire connection which will make something move or click something.
   • Web cam
     • Consists of a lightproof box which lets in a small amount of light at the right moment which makes millions of tiny dots that forms a picture

2. Output Device

   • Printer
     • It makes a laser beam scan back and forth across a drum inside the printer, building up a pattern of static electricity. The static electricity attracts onto the page a kind of powdered ink called toner. Finally, as in a photocopier, a fuser unit bonds the toner to the paper.
   • Speaker
     • by bluetooth or a lead connection you can play music or a audiobook by the device and it will send sound through to the air and to your ears
   • Projector
     • 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.
   • HeadPhones
     • A transducer converts the electronic signals from the device into sounds which can then be heard by the user via the headphones.
   • Monetor
     • A Monetor Produces A series Of Tiny Dots (Called Pixels) Which Then Appears As A Whole Image.
   • DVD Player
     • A DVD player is a device that plays discs produced under both the DVD-Video and DVD-Audio technical standards, two different and incompatible standards. Some DVD players will also play audio CDs. DVD players are connected to a television to watch the DVD content, which could be a movie, a recorded TV show, or other content.
   • Laser Printer
     • The light reflects off the page onto a light-sensitive drum; static electricity makes ink particles stick to the drum and the ink is then transferred to paper and "fused" to its surface by hot rollers but because there is no original page to copy, the laser has to write it out from scratch.
   • Plotter
     • Flatbed plotters use a system where the paper is fixed, and the plotter moves a pen up and down, and left and right to draw the required marks on the paper. Drum plotters move the pen up and down, and the paper left and right by rotating the drum. Plotters can use more than one pen, allowing different colours to be drawn.
   • Television
     • A Television Produces A Series Of Tint Dots (Called Pixels)That Then Appears As A Whole Image
   • Controller
     • If Something Happens In A Game Like You Get Shot It Will Send A Signal To the Contoller So It creates A Vibration Through The Controller To Your Hands Using A Conection From The TV Or Computer

3. Storage Devices

   • USB
     • Stores data From a monetor which you can plug into other monetors which you can also desplay on a screen if you work in a school or somewhere you have to do a presentation.
   • SIM Card
     • a sim card goes in phones and it stores passwords, phone numbers and other personal things people may need to keep privet.
   • HardDrive
     • stores data using a USB conection device
   • SD card
     • Inside every SD card, rows of tiny memory chips are at work – storing all your documents, music, photos and more. And because there are no moving parts, it's all done quickly and effortlessly. This lack of moving parts also means that microSD cards can be pretty durable: many of the current products on the market even claim to be waterproof.
   • Memory stick
     • The chip inside contains a grid of transistors acting like tiny switches. All data is reduced to binary 1s and 0s and one of these values is stored at each point in the memory. To store a '1', the transistor in the relevant location is switched on, allowing charge to flow through it. The transistors stay in their on or off states even with no power, so the data stays intact even when you disconnect your memory stick.

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