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In the previous lecture, we had a problem when we were trying to access resources from different network

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segments where there is a typical network issue that's easily resolved by using a cool device called

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a router, as you can see in the middle of the diagram.

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Nice, then problem solved.

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Well, even though you can use it outdoors for more than just connecting the lens, rorter shown in

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the figure is a great solution because the host computers from the fields land can now get to the resources

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of the marketing man and vice versa.

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Now, you might be thinking that we really don't need a router that could just physically connect the

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two workgroups with a type of cable that would allow the marketing and the sales work groups to hook

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up somehow.

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Well, there is also a solution.

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We could do that, but if it did, we would have only one big cumbersome workgroup group instead of

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separating work groups for marketing and sales.

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And that kind of arrangement just isn't practical for today's networks.

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This is because with smaller individual yet connected groups, the users on each LAN enjoy a much faster

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response times when accessing the resources and administrative tasks are a lot easier.

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Also now, larger war groups run more slowly because there's a legion of hosts within them and all are

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trying to get the same resources simultaneously.

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So the router shown in the figure which separates the work groups while still allowing the access between

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them, is really a great solution.

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Well, I would like to again tell you that do not focus too much on the network connectivity devices

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like the hubs, routers and switches I've mentioned so far in this section yet that these devices we

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will be all covering in the sections of networking devices right now.

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I really want you to prioritize your understanding of the concepts that I am presenting here.

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So at this point, all you need to know is that hubs and switches are devices that connect other devices

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together into a network, and routers connect to different network segments together.

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OK, so in the next lecture, I will define the other terms that I have used so far, that is workstations,

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servers and hosts.