what could be its use?? are they practical?? what are their effect in the society??
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Digital broadband & digital telecomunications.
Clearer and faster connection, very practical, less need for hard wireing, brings peoples of the world closer allows for business use without the need to be ‘face to face’
the telephone as it was the first device where it was if you were actually with them as you could hear them, unlike the telegram or the letter AND it was immediate
secondly, as others have said, the internet.
the effect of having a free world of knowledge and research at your fingertips is still quite unbelievable
can you name one person who you know who doesn’t use the internet?
Two cacao tins and a piece of string.
The development of optical fibre has greatly improved the communication speed, anticipated to touch 2 trillion bits per second eventually. Packet switching transmission method like asynchronous transfer mode achieving a speed upto 622 million bits per second has been the major breakthrough in communication technology. CD-ROMS with storage capacity of 1.6 GB of data have been instrumental in fast information retrieval and access. Use of multimedia for storage of text, graphics, video, sound, etc. has immensely benefitted the information storage system.
The major breakthrough in communication is the Internet that had broken all barriers of human interactions.
Hundreds of people can share information and access the data in an office or outside it, thanks to networking, which is Internet and Intranet. When two or more computers are electronically connected for the purpose of exchange of information, networking is said to have been done.
Likewise, Intranet is a communication and sharing of data, which can be classified into two categories — LAN and WAN (Local Area Networking and Wide Area Networking, respectively).