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Hardware Basics 0604

What is RAM? Random access memory, temporary memory that holds new data and only avaliable when computer is on.
What is ROM? Permanent internal memory that is inaccessable by the user programmed by manufacturer.
What do peripheral devices do? Input, output, storage. 1) Input information 2) output the indormation into a form that users can read 3) store information for later use.
What is resolution? Defines the clarity of the image shown on the computer screen.
What are lumens? A lumen is how the brightness of a projector is measured.
What is a hard disk drive? Holds large amounts of inforamtion and should be considered when buying a computer.
What is an external hard disk drive? A device that can hook up to your computer with cables to save information. Usually large and you can transport easily.
What is a CD-R? Compact disk recordable- You can burn information on to a cd. Good for large projects. Cannot be edited.-needs a cd-r component on a computer to burn.
What is a CD-RW? Compact disc-rewritable. Also good for large information, can be edited.- needs a cd-rw componet on computer to burn and play.
What is a USB port? Universal Serial Bus port. Used to connect many different devices to your computer.
What is assistive technology (AT)? devices used for special needs students such as special keyboards and readers.
What is a bit? One binary character. 1 or 0
What is a byte? Eight bits, can be represented as a letter such as A
What is the cache? Temporary storage area for quick access to information.
What is a pixel? A single colored square, put together with others to for an image to be shown.
Created by: aab6w3