Articles, Blog

Hackers & Cyber Attacks: Crash Course Computer Science #32

Hi, I’m Carrie Anne, and welcome to CrashCourse Computer Science! Last episode, we talked about the basics of computer security, principles and techniques used to keep computer systems safe and sound. But, despite our best efforts, the news is full of stories of individuals, companies and governments getting cyberattacked by
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Articles

Computer Networks: Crash Course Computer Science #28

Hi, I’m Carrie Anne, and welcome to CrashCourse Computer Science! The internet is amazing. In just a few keystrokes, we can stream videos on Youtube — Hello! — read articles on Wikipedia, order supplies on amazon, video chat with friends, and tweet about the weather. Without a doubt, the ability
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The Internet: Crash Course Computer Science #29

Hi, I’m Carrie Anne, and welcome to CrashCourse Computer Science! As we talked about last episode, your computer is connected to a large, distributed network, called The Internet. I know this because you’re watching a youtube video, which is being streamed over that very internet. It’s arranged as an ever-enlarging
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The World Wide Web: Crash Course Computer Science #30

Hi, I’m Carrie Anne, and welcome to CrashCourse Computer Science. Over the past two episodes, we’ve delved into the wires, signals, switches, packets, routers and protocols that make up the internet. Today we’re going to move up yet another level of abstraction and talk about the World Wide Web.This is
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Universal Class – free online learning courses

Have you discovered the online learning courses available through Essex Libraries yet? Courses are free to all members of Essex Libraries. You can learn about something you always fancied, or discover a brand new interest in something you’d never even thought of. There’s a huge range of courses covering everything
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