INTRODUCTIO1 - INTRODUCTION the environment in which a GIS...

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INTRODUCTION the environment in which a GIS operates is defined by: hardware - the machinery, including: o a host computer ranging from a stand-alone microcomputer to a large mainframe supporting many users o several devices for handling input and output software o the programs that tell the computer what to do o the data the programs will use this unit provides a brief overview of computer hardware and software so that students will have a basic understanding of how computers operate and will recognize some of the common computer terminology o important topics are covered in greater detail in later units COMPUTER DATA computer data is coded, manipulated and stored by use of an exclusive two-state condition o in English such two-state forms of information can include yes/no, on/off, open/closed, hole/no hole o in simple electronic terms this two-state condition can be translated for the computer into "switch open/switch closed", meaning that "there is electricity passing through the circuit/there is no electricity passing through the circuit"
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INTRODUCTIO1 - INTRODUCTION the environment in which a GIS...

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