ELECTRONICS

ELECTRONICS

1. Electronics is the use of electric current to control, comunicate, and process information

   • An electronic signal is a varying electric current that represents information
   • There are 2 basic kinds of electonic signals: analog signals and digital signals
     • digital signals use pulses of current are used to represent information
     • analog signals is a varied smooth to represent information

2. a telephone is an electronic comunication to talk with people by signals.

   • a radio is the technologing of signaling and communicating by sound waves
     • the television is a source of communication and entertain

3. computers are electronics device that stores , processes, and and retrieves information

   • a computer information is represented in binary system , the binary systems use combination of just 2 digits ,0 and 1.
   • a computer hardware includes a cental processign unit, input devices, aand memory storage devices
   • the history of the computers began in 1823 when charles babbage created the diefference engines
     • The internet is a global network that links millions of business, schools, and research organizations,and the www thats means worl wide web is a system that allows you tu file on pages

Bilder und Dateien der Mindmap