Dfault gateway, IP Address and Subnet mask

Default gateway is called a router, if a remote host sends a datagram boundnya. Gateway will have a table of all possible routes, where the remote network can exist on the site. Gateway sends via shortest path to information in the routing table is based.
Windows NT 4.0 can toleransikesalahan multiple default gateways as. when it is below the bridge, you can use your computer to the next gateway in the list in the table.
The default gateway is the parameter of choice. This is only used if you have more than one network segment and you try to communicate both.

For more information, I, the elements existing in the TCP / IP would be the following: explain the IP address, subnet mask, DNS server preferred DNS server.

The IP address of computer network composed of 32 binary bits. And create an IP address on the LAN, you can use one of the class
below

Class A: 10.xxx with a subnet mask of 255.0.0.0
B 172.16.xx - 172.31.xx with subnet mask 255.255.0.0 Class
Class C: 192.168.xx with a subnet mask of 255.255.255.0

What is the subnet mask? ... ... Subnet mask is a method to eliminate or mask rations (a term, chaotic) and the IP network address.
IP address consists of two parts, namely the network ID and host ID, so that the function of the subnet mask is to determine if and how your network, you can access the network, you pake are the host.
Because computers understand only 0 and 1 or binary, the subnet mask in the form of binary numbers. Subnet mask consists of 4 bytes and 1 byte = 8 bits, because it is a subnet mask of 32 bits.
therefore, the subnet mask 11111111.11111111.11111111.11111111 be read by computers, because man is hard, if you read binary, computers have finally his conversi decimal when it comes to the user ( we found ourselves NIH), * * Open the simulator sciencetific results of the binary number above, after it is converting to a decimal number 255255255255

thanks... Please give advice.