Either use a crossover cable or connect them using a hub, switch, or router.
If you don't have at least two wireless adapters for your pcs, yes you have to have a network cable in order to connect two pcs.
A hub or switch must be used to connect 3 PCs together. Two PCs can be connected using a single crossover cable.
cross cable, two LAN card one for each, ip address of same class, rj 45 connector,
If you are asking what kind of cable you need in order to directly connect two PCs using the ethernet ports, then you want what is called a crossover cable (NOT a lan cable). Go to Best Buy or a similar electronics store and tell them that, and they'll know what to give you.
Type your answer here... yes, we can connect a nic to a nic. A nic is a Network Interface Card which has a unique MAC. When we connect two devices(say laptops) using a lan cable,we actually connect their nics.
i want to connect two PC a one lan card . can i connect two PC
One of the routers you have to connect to internet, another one you have to connect to the first one using a lan cable. You can use any of lan ports of the first router to connect the second one (except internet port, usually it's marked as WAN or similar to). The lan cable should be connected to the WAN port on the second one. Only in such case it works properly.
Check out for availability of two unused PCI slots on Motherboard. You can connect PCI based LAN cards. IF possibility for PCI based LAN cards are dimmer then one can go for other modes such as USB based LAN cards.
use a router !
You would connect them with ethernet cables and 1 or more switches. If you require more than 1 switch, you need to connect the two switches with an ethernet cable too.
Crossover Cable
A Crossover Cable is used to connect 2 PCs (when a hub or switch is not used) to make the simplest network of all. (6th Edition, Page 852)