000 01307nam a2200181 4500
001 00305952
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005 20180324010544.0
008 000000n 00000 eng u
245 0 4 _aThe new media.
300 1 _aVideocassette (VHS)(ca. 25 min.) : sd., col. 1/2 in.
500 0 _aFor the pioneers of the West who came from the cities to these hills in search of gold, life was rough, tough and dangerous! Once a month, if you were lucky, the mail would arrive by mule train, a journey of 53 days. By 1858 the stagecoach had penetrated deep into the West and it had cut the time for the 2,700 mile journey from San Francisco to St. Louis to a 'mere' 23 days, twenty-three days that were described by the passengers as 'hell on wheels'! For special messages, there was a faster way. The news of Abraham Lincoln's election in 1860 was sent by pony express, a distance of 2,000 miles, in a mere six and a half days. But the era of the pony express was only to last eighteen months before it was replaced by a device that revolutionized communications. And the principles of that device have hardly changed over the last 150 years.
650 _aComputer science.
650 _aTelegraph.
700 _aBritish Broadcasting Corporation.
700 _acNaught-Davis, Ian.
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