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A data link is a means of connecting one location to another for the purpose of transmitting and receiving digital information (data communication). It can also refer to a set of electronics assemblies, consisting of a transmitter and a receiver (two pieces of data terminal equipment ) and the interconnecting data telecommunication circuit .
VSCP - Very Simple Control Protocol is a free protocol with main focus on building- or home-automation; xAP – Open protocol; X10 – Open standard for communication among electronic devices used for home automation (domotics) Z-Wave - Wireless RF Protocol; Zigbee – Open protocol for Mesh Networks
Data communication, including data transmission and data reception, is the transfer of data, transmitted and received over a point-to-point or point-to-multipoint communication channel. Examples of such channels are copper wires , optical fibers , wireless communication using radio spectrum , storage media and computer buses .
The Shannon–Weaver model is one of the first models of communication. Initially published in the 1948 paper "A Mathematical Theory of Communication", it explains communication in terms of five basic components: a source, a transmitter, a channel, a receiver, and a destination. The source produces the original message.
In data transmission, parallel communication is a method of conveying multiple binary digits simultaneously using multiple conductors. This contrasts with serial communication , which conveys only a single bit at a time; this distinction is one way of characterizing a communications link .
SlideShare is an American hosting service, now owned by Scribd, for professional content including presentations, infographics, documents, and videos. Users can upload files privately or publicly in PowerPoint, Word, or PDF format. Content can then be viewed on the site itself, on mobile devices or embedded on other sites.
When the 2321 data cell was discontinued in January 1975, [5] the addressing scheme and the device itself was referred to as CHR or CTR for cylinder-track-record, as the bin number was always 0. IBM refers to the data records programmers work with as logical records , and the format on DASD [ a ] as blocks or physical records .
SlideShare allows the user to share presentations publicly or privately. Slides can be uploaded in various ways, via email and through social media are the most common ways of sharing the slides. [9] AuthorSTREAM only allows the user to upload PowerPoint presentation slides. On this website users can give feedback by rating presentations and ...