Cable is VERY important. If it weren’t for the cable, we’d have no network.
The first concern is cable quality. Quality, in effect, is rated using the Cat System. The higher the Cat Rating, the faster your cable will travel. Being Cat cable also rates phone lines, there are only two Cat ratings used for Ethernet cable. They are Cat3 and Cat5. For 10/t networks, that WILL NOT be upgrading in the future, Cat3 is fine. But, as soon as you want to upgrade to 100/TX, all Cat3 cable must be replaced to Cat5, which can handle that speed.
Physical cable placement is another concern. For liability and safety reasons, I’m sure you don’t want cable running all over the ground. For the home user, that might be fine, but in a business, it’s a hazard waiting to happen. Cabling can be run though the walls, and attached to a port that fixes to your wall just like the phone cable port.
They are called “Data Drops.” These plastic outlets only cost a buck or two, depending on where you buy them, and are very worth while. One final note, just remember to buy the right amount of cable needed to run where you want it to go. Having left over cable is better than having not enough.

