Following the 1980s a sweeping restructuring of commercial media power has happened. While some firms have grown through expansion others extended through mergers and acquisitions. Examples are
In recent years those developments have led to the rise of transnational media giants, resulting in the domination of the global media system by about ten huge conglomerates. These have interests in numerous media industries, ranging from film production, magazines, newspapers, book publishing and recorded music to TV and radio channels and networks, but also include retail stores, amusement parks and digital media products.
Behind these firms are about three or four dozen smaller media companies, which primarily engage in local, national or niche markets. In short, the overwhelming majority of the world's content production facilities and distribution channels lies in the hands of approximately fifty enterprises.
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Open Systems Interconnection (OSI) is a standard reference model for communication between two end users in a network. It is used in developing products and understanding networks.
Source: Whatis.com
Ronald L. Rivest is Webster Professor of Electrical Engineering and Computer Science in MIT's EECS Department. He was one of three persons in a team to invent the
FTP enables the transfer of files (text, image, video, sound) to and from other remote computers connected to the Internet.
A BBS (bulletin board system) is a computer that can be reached by computer modem dialing (you need to know the phone number) or, in some cases, by
Bulletin board systems originated and generally operate independently of the Internet.
Source: Whatis.com