September 2017
Beginner
278 pages
4h 24m
English
Content preview from Understanding SoftwareBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.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.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.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.
Chapter 24. What is a Computer?
In order to understand software, the first thing we need to understand is what a computer really is.
Now, you'd think that would be a fairly simple question. After all, I'm using one to type this up, I ought to know what it is, right? I mean obviously, it's a…computer! I mean, it's got a keyboard, and a monitor, and there's that box down there…
But what is it that makes all that stuff a computer? Why do we look at it and go, "Oh yeah, that's a computer," as opposed to, say, "Oh, that's just a TV," or "That's where I keep the leprechauns at night."?
Some people try to define the word "computer" just by saying "it's got such and such parts and they all work this way," but that's like saying "airplanes have two wings ...
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