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IDT Unit 3

Hardware, Software & Operating Systems

output data which is sent out of a system
operating system software that manages the hardware and software in a computer system
processor brains of the computer
program sequences of instructions for a computer
downloading to copy a file from the Internet onto your computer
input data that is inserted into a system for processing and/or storage
software programs used by a computer
hardware machines, wiring and other physical components of a computer
RAM Random Access Memory--memory that can be accessed randomly
ROM Read Only Memory--data cannot be removed; can only be read
CPU part of the computer in which operations are controlled and executed
hard drive high-capacity, self-contained storage device
motherboard printed circuit board containing the principle components of a computer
network card allows a computer to communicate over a network and access the Internet
Moore's Law predicts transistors will double every year
information processing cycle sequence of events in processing information in a computer
monitors have a liquid crystal display
CPU fetches and executes instructions
multi-tasking allows multiple tasks to run at the same time
multi-user allows a number of users to use the same system at the same time
Created by: ParrisNHS