Showing posts with label IT OFFICER PROFESSIONAL LANGUAGE KNOWLEDGE. Show all posts
Showing posts with label IT OFFICER PROFESSIONAL LANGUAGE KNOWLEDGE. Show all posts
Friday, January 29, 2021
Monday, January 8, 2018
Computer Awareness for IT OFFICER
What’s the Difference between a Hub, a Switch, and a Router?
Hubs, switches, and routers are all devices that let you connect one or more computers to other computers, networked devices, or even other networks. Each has two or more connectors called ports into which you plug in the cables to make the connection. Varying degrees of magic happen inside the device and therein lies the difference. I often see the terms misused, so let’s clarify what each one really means.
That’s it.
If a message comes in for computer “A”, that message is sent out all the other ports, regardless of which one computer “A” is on:
And when computer “A” responds, its response also goes out to every other port on the hub:
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