If you're using airport, you can create a network under the airport icon on the top right menu bar (if you don't have it there you can add it from system preferences) and click on "Create Network". There you can create a network, and the other computer can connect to that network (as long as the network is selected on the first computer).
If you mean by like WiFi, you can go to System Preferences>Sharing>internet and create a network there
both computers should have lan ports on them, use a lan cable - yellow in Australia and directly connect the two computers. At your local airport they use wireless so you will need a wireless modem (Wi-Fi)
Is a crossover cable needed to connect Host computers to the switch? Why or why not?
Cross cable.
yes
yes
linksys
You can connect two or more computers using the following cables: Network cable USB cable Serial (used in old computers) Parallel (used in old computers)
You can connect them with an ethernet cable, or by WiFi if they have wireless cards.
"An ethernet cable splitter allows you to connect two computers to one ethernet connection. Once you have your splitter made, you plug it into both computers just as you would with a normal ethernet cable."
It is when you connect 2 computers with a LAN cable
Buy a lan router, they can be used with lan cable or wireless to connect all your computers through a network. If there are only two computers that you wish to connect then you only need on lan cable which you connect in the back of each of those two computers to create a network.
You can use a null-modem cable; alternately, you can use a USB or FireWire cable.