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Computer-mediated communication (CMC) is defined as any human communication that occurs through the use of two or more electronic devices. [1] While the term has traditionally referred to those communications that occur via computer-mediated formats (e.g., instant messaging, email, chat rooms, online forums, social network services), it has also been applied to other forms of text-based ...
The terms computer-aided drafting (CAD) and computer-aided design and drafting (CADD) are also used. [2] Its use in designing electronic systems is known as electronic design automation (EDA). In mechanical design it is known as mechanical design automation (MDA), which includes the process of creating a technical drawing with the use of ...
In telecommunications, a message Base station is a predetermined or prescribed spatial or time-sequential arrangement of the parts of a message that is recorded in or on a data storage medium. At one time, messages prepared for electrical transmission were composed on a printed blank form with spaces for each part of the message and for ...
The first message that was sent through a computer was on October 29, 1969, by Raymond Tomlinson. [20] Text message. A text message is defined as a short message sent electronically usually from one cellphone to another. [21] The first text message was sent on December 3, 1992, developed by Finnish engineer Matti Makkonen. [22]
The header's format is specified in the Internet Protocol, see IP header. In data packets sent by wireless communication , and in sectors of data stored on magnetic media , typically the header begins with a syncword to allow the receiver to adapt to analog amplitude and speed variations and for frame synchronization .
Packet switching allows delivery of variable bit rate data streams, realized as sequences of short messages in fixed format, i.e. packets, over a computer network which allocates transmission resources as needed using statistical multiplexing or dynamic bandwidth allocation techniques.
Computations deal with algorithms and data; Communication involves protocols and messages; So the analog of a data flow diagram is some kind of message flow diagram. [4] To visualize protocol layering and protocol suites, a diagram of the message flows in and between two systems, A and B, is shown in figure 3.
Computervision's first product, CADDS-1, was aimed at the printed circuit board layout and 2-D drafting markets. CADDS stood for Computervison Automated Design and Drafting System. The CADDS-1 system featured a combination digitizer and plotter mounted on a large drafting table.