However, there are many companies that sell add-in Ethernet controllers. If your computer did not come with one, you may find one produced by 3Com, Linksys, and D-Link. It is also possible for your computer to support more than one, and provide the ability to be used as a router or gateway. You will find an address on your controller. It has 6 octets (full bytes). The first three sets of numbers represent the manufactures ID number. For example Dell computer ID number is 00-08-74.
Before high speed Ethernet controllers were released, there were only a few computers that were available with Ethernet built in. They were Sun, IBM, and Digital. It wasn't until the 1990's that networking became popular and created the rise of high speed Ethernet. Earlier versions of Ethernet ran at 10Mbit speeds using the 10BASE-T specifications. Today's versions are capable of 100Mbits or faster if using the Gigabit Ethernet. Even though these speeds are possible they are not always available because the slowest connection determines the actual speed. This means you can only achieve the speeds your DSL, cable or other connections allow. Choose an internet provider that suits your needs to provide the service speeds you need.
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