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C2 Vocabulary0502
Question | Answer |
---|---|
Central Processing Unit (UPU) | where the processing of the information takes place |
Arithmetic Logic Unit (ALU) | the sector of the CPU that performs the mathematical calculations that are required in many data processing programs |
Memory Unit | allows storage of information, is internal to the computer, and is divided into two types of memory |
Bit | a binary character; the smallest unit of binary information |
Byte | eight bits make one byte; it can represent one alphabetic or one numeric character of information |
Processor Speed | expressed in megahertz, which equals one million cycles per second or gigahertz, which equals one billion cycles per second |
Cache | provides a temporary storage area that provides a quick access to information |
Peripheral Devices | inputs information, outputs information into a form that is easily read by the user, and stores the information for later use |
Keyboard | offers the input of alphabetic and numeric information, as well as additional operational and input keys |
Mouse Pad | allows good movement of the mouse, and comes in many trendy designs |
Optical Character Recognition (OCR) | software that converts texts |
Graphics Table | also connected to the computer through a port connection; teacher or student draws on the electronic tablet with a stylus to transfer the image to the computer |
Digital Cameras | cameras that are capable of inputting data into a computer instead of onto film, and are common tools in teaching and learning across grade levels |
Web Cam | a tiny camera that sits on (or is part of) a computer and feeds video directly into the computer |
Personal Digital Assistant (PDA) | small, portable tools allow the user to input handwritten notes on a small screen using a special pen or a tiny keyboard.These notes can be downloaded into a computer for later use |