Symbols have been us to convey and store information since ancient times. According to the type of perception, symbols are divid into: visual (number and letter names, traffic signs, notes, mathematical symbols, etc.); auditory (voice, music, sirens, etc.); olfactory (smell, aroma, etc.); tactile (touch, visual handicapp and blind Braille, etc.); taste (sweet, bitter, etc.). Information can be transmitt from source to receiver in the form of sound and light signals, for example, ambulance sirens, traffic directions at traffic lights. Symbols are classifi according to the relationship between implementing form and semantics.
Determine The Point At Which
Iconic: images closely resemble the shape of the objects they represent (e.g., the trash can icon on a computer desktop); Symbolic: according to generally accept standards (e.g., mathematical Country Email List symbols) to identify the relationship between image shape and semantics. Informational data can be represent in language using a system of symbols, bas on an alphabet, with which text messages are compil and which also form a set of rules for performing operations on symbols. Types of languages: natural (French, Spanish, Russian, etc.); formal specializ languages us in certain areas of activity (programming languages, Morse code, number systems, etc.). The unit to measure the amount of information.
The Negotiation Process
The smallest unit to measure the amount of information is the bit. The word bit comes from the English abbreviation (or ), which literally means binary digit. A bit is the amount of information DM Databases sufficient to distinguish two things with the same probability. One bit identifies one of two concepts: or (on or off, true or false, yes or no, etc.). A bit is the smallest unit of measurement for information. In practice, the larger unit byte is the most commonly us. A byte is eight bits. The units of measure for information are in ascending order: kilobytes bytes; megabytes kilobytes; gigabytes megabytes; terabytes gigabytes; petabytes terabytes.