The device allowing two computers to communicate with each other is... a router (or modem).
This question has many different intakes and types of answers. Ill answer the most common references. Hardware that allows computers to talk to the simplist level is a ethernet card. With an ethernet card on both computers using a crossover cable you can connect them with each other and allow them to talk. Another more popular piece of hardware that connects computers and allow them to talk is the infamous router. A router is a workstation that connects all computers together and they can share files, media, and an internet connection. If you talking on the wireless level bluetooth and adhock connections allow computers to talk. Hope this helps!
Its called a Network here are few below 1Lan which stand for local Area Network and the other is the 2Internet 3small business network 4wireless network or wi-fi
I think not anymore. I think nowadays most computers are personally owned laptops and PCs which are not linked to any other, added to which are those owned by small businesses which are just a single computer.
Well if your talking about something like Skype its the internet. But mostly if your talking about computer sharing info its a programm downloaded on both computers.
modems
supercomputer
network card
A cross-over cable.
The device allowing two computers to communicate with each other is... a router (or modem).
You most likely mean "LANs". LAN stands for Local Area Network. A LAN establishes communication between two or more computers at a "location". A location could be a business or a home but is normally a single geographic location. The protocols in the LAN will be designed to allow the computers at the location to communicate, but basically ignore requests to communicate with other computers outside the 'location'. A counterpart to the LAN is the Wide Area Network or WAN. A wide area network will join two or more LANs together.
A modem. However, there is a card that can connect computers trough telephone or cable television lines, too.
A router is a device that connects to your modem to share your internet connection with other computers. A wireless router uses a power cord and an Ethernet cable to connect from the modem to the router without the need of a connection between the router and the computers it's sharing the Internet connection with. A USB wireless router connects to the modem using a single USB connection that serves as both the power supply and data connection.
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MODEM (Modulator - Demodulator) allows communication between computers.Generally Modem connects to ISP over analog telephone line and further ISP connects to Computers over Internet.
I'm pretty sure LAN's are a group of computers connected to each other through routers/modems or ethernet cables. The internet it similar to LAN's but instead of connecting to other computers close by, it connects to computers all around the world.
To network them you will need to set up a WAN. This stands for wide area network. A LAN (Local Area Network) networks computers that are within an easy distance of each other (i.e. in the same building) via wires or a wireless connection. This allows people to share the folders on their computers, share drives etc. A WAN does the same, only it connects via the internet to computers further away. It still allows file and printer sharing. To do this both computers will need an active internet connection.