Key Words

Key Words

1. Computer

   • a programmable electronic device designed to accept data, perform prescribed mathematical and logical operations at high speed, and display the results of these operations.
   • a device that can take some inputs (data), process the data and output a result (information)
     • The information is the data that has been processed

2. Peripheral

   • a device or unit that operates separately from the CPU but is connected to it, as a magnetic disk or tape unit or a printer.
   • The difference is that the screen is on the computer
   • printer, keyboard, mouse

3. Input

   • to enter (data) into a computer for processing.
   • keyboard, mouse, mike

4. Storage Device

   • it is used to permanently record or store data
   • CD, Hard drive, USB, sim card

5. Hardware

   • Objects that you can physically touch, like a music CD
   • Disks, disks drives, display screens, keyboards, printers, boards and chips.

6. Software

   • You cannot 'touch' software. Software refers to the programs that run on a computer, rather like the music playing on a CD.
   • Windows, MS Word, MS Excel, Kodu and Logo

7. Output

   • to transfer (information) from internal storage to an external medium
   • a place where power of information that leaves a screen
   • printer, headphones,earphones

8. Helpful devices for disabled people

   • Braille keyboard
     • A Braille keyboard is a specialist input device that allows the user to type and enter text or instructions for the computer in Braille. (c) courtesy of Sight and Sound technology. (c) courtesy of Sight and Sound technology.
   • Pipes / sip and puff
     • Sip-and-puff or sip 'n' puff (SNP) is assistive technology used to send signals to a device using air pressure by "sipping" (inhaling) or "puffing" (exhaling) on a straw, tube or "wand." It is primarily used by people who do not have the use of their hands.
   • Foot mouse
     • A foot controlled mouse (also spelled foot mouse) is a type of computer mouse that gives the users the ability to move the cursor and click the mousebuttons with their feet. It is primarily used by users with disabilities or with high-back or neck problems.
   • Head mouse
     • In the proposed system, by moving one's head, the user moves the mouse pointer to the required coordinates and then blinks to send commands. ... The designed system allows people with disabilities to control a mouse pointer with head movements and to control mouse buttons with blinks.
   • Eye typer