Lesson 2: Network Hardware
A hub is rectangular container that is used as the central object which computer systems and other devices are connected. To create this possible, a hub has small openings called slots. Although this appears with 4 ports, depending on its type, a hub can be outfitted with 4, 5, 12, or even more ports. When configuring it, you connect an RJ-45 cable from the network card of a computer to one port of the hub.
In most cases for a home-based or a little business network, you may not need (or shouldn’t use) a hub. Just like a hub, a router is a different type of device that acts as the central point among computers and other devices that are part of a network. A router functions a in different ways when compared to a hub little.
In reality, a router can be viewed as a little “intelligent” than the hub. Like a hub, the computers and other devices are connected to a router using network cables. To create this possible, a router is equipped with holes, called ports, in the back. Based on advances in the last years from IEEE and other research or organizations companies, there are wireless routers.
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With this kind, the computer systems and devices connect to the router using microwaves (no physical cable). In order to hook up to a network, some type of computer must be outfitted with a tool called a network credit card. A network card, or a network adapter, called a network interface card also, or NIC, allows a computer to connect to the surface.
If you buy a computer in one of these popular stores or big companies on the Internet, the majority of their computer systems have a network cards ready and tested. You can use it reliably. If you visit a store that sells or manufactures computers, they can be asked by you to install or ensure that the computer has a network cards.
If you have some type of computer that doesnt have a network cards, you can set up one. When you have a computer which has a network card already, you can replace it still. With regards to their installation, there are roughly two categories of network cards: internal and external. What this card looks like might not be especially important and it may depend on the maker however, many of its aspects are particularly important. To start out, there are two types of cards and you should know which is suited (or which you want to use) for your computer. One type of NICs runs on the peripheral component interconnect (PCI) connection. Another type uses industry standard architecture (ISA).
There are two main ways you replace an internal network card. In most cases, you will take away the card your computer has and use a new one already. In some other cases, you is only going to add a new card nevertheless, you cannot replace the existing one since it is area of the motherboard.