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22 Cards in this Set
- Front
- Back
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What is Equitable Access?
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States that "robust and reliable access to current and emerging technologies and digital resources with connectivity for all students is necessary to effectively leverage technology for learning.
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What are Access Options?
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differ in schools across the nation: include 1 or more stand-alone computer, computer learning centers, several computers connected to a scanner or printer, etc.
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What is a computer system?
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a computer and the other support devices that work as a team to receive information, process that information, and output the information in a usable format.
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What is a Central Processing Unit? CPU
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where processing the information takes place. also referred to as the processor.
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What is a Control Unit?
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retrieves the instructions and sends command signals to the rest of the computer system..
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Arithmetic logic unit
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ALU, sector of the CPU that performs the mathematical calculations that are required in data processing programs.
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Memory Unit
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allows storage of information, is internal to the computer, and is divded into two types of memory: RAM and ROM
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RAM
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temporary memory
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ROM
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permanent internal memory
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bit
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smallest unit of binary information
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byte
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eight bits make up a byte, which can represent one alphabetic or one numeric character of information.
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Processor speed
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how fast data can be moved in and out of the memory.
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megahertz
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1 million cycles per second
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gigahertz
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one billion cycles per second
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cache
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temporary storage that provides quick access to information.
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peripheral devices
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input information, output information, store information
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input devices
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allow input of data into the computer
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optical character recognition
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converts text from the scanner.
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sound card
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allows input of sound into the computer
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output devices
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produce data after it has been processed in hard copy or soft copy
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internal storage
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storage within the computer by way of hard disk drive or hard drive.
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hard disk drive
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holds large amounts of information and is significant in the purchasing decision of a new computer system.
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