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14 Cards in this Set
- Front
- Back
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Digitizing Information |
A process where information is represented by a grouping of symbols. In this context information refers to the presence or absence of a phenomenon at a specific place and time |
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Information |
Refers to (in this context) the presence or absence of a phenomenon at a specific place and time |
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PandA |
The Presence and Absence mentality of information Presence = yes, true, on, is, 1 Absence - no, false, off, isn't 0 |
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Bit |
the information contained in one PandA observation each bit has two possibilities (0 or 1) |
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Binary System |
the system composed of bits or the two possibilities of 0 or 1 |
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Memory |
The process that sets the PandA observation for example, flicking a light switch sets the memory of the switch |
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Memory Sequence |
a grouping of memory in a designated order |
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Calculating the number of possible memory strings that can be produced from n bits |
2^n |
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Binary |
a base two counting system that computers use to record bits. has 0/1st, 2nd, 4th, 8th, and so on places |
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Byte |
8 bits = 1 byte in memory storage bytes look like 1101 0010 Memory strings are made from combinations of bytes |
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Hexadecimal system |
a base 16 counting system with 16 symbols developed because binary information is hard for humans to read. In this system, two digits equate to one byte Handy for encoding information |
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ASCII or American Standard Code for Information Interchange |
A system that used an 8 bit binary representation system (byte) There are 256 symbols that can be represented by this system because 8 bits are used and 2^8 = 256 |
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Metadata |
stored information about the data being stored. Common themes include - structure - relations - collection process - units - display - timing |
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Tags (as in html) |
One way to express metadata All HTML structure is a form of metadata for webpages |
