May 2014
Beginner
266 pages
11h 32m
English
Content preview from Students' Guide to Information Technology, 2nd Edition
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Students Guide to Information
Technology
available capacity of
the
line. Modern packet switching, based upon
digital communications equipment, allows
a
number of calls to share
the same line. In addition, optic fibres allow broadband com-
munications (i.e. signals with a very broad bandwidth), and so can
carry a very large number of simultaneous telephone calls, as well as
TV signals.
Carrier waves and modulation
Most radio and telephone communications are based on the analogue
microphone/loudspeaker technology outlined in Chapter 5, and it is
therefore important that you understand the principles behind this.
Sound waves are converted to electrica ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.