Phil Simpson MISM AITT Tandberg Technical TrainingTandberg Television Ltd

1.8 Telco Technologies


The word ‘telecommunication’ is derived from two Greek words, which can be translated as ‘the passage of information at a distance’. Historically the only means of communication available were visual communications, e.g. beacons, smoke signals and semaphore signalling. Modern telecommunications networks enable different types of data to be passed: Voice (by telephony), Paper images (by facsimile), Computer systems (by using digital data networks), Plain text (by telex), Formatted Text (by electronic mail and related systems) and Video Systems (by Integrated Services Digital Network – ISDN). The different forms of telecommunication are distinguished ...

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