Because that would only allow one address, and two are reserved (One for broadcast, one for a gateway).
So that would mean that the lowest possible subnet mask which would be usable would be 255.255.255.252, with three spare addresses. Even so, this would only allow one additional terminal on the network.
No, all subnets must use the same subnet mask
This question is unanswered.
Someone would use a subnet mask calculator for splitting a network into sub networks. It is sometimes used to ease congestion on a network and divert traffic.
I'm not sure what you mean by Contiguous. As long as the IP's are on the same subnet it doesn't matter which one they get from the range. THe Subnet mask, Gateway and possibly DNS addresses all need to be the same but the IP can be anything from the range. Use DHCP if possible so you know all your PC get the same network configuration. If this is a subnet issue then simply set the subnet mask appropriatley for your IP range - use an online calulator if you need help doing this.
binary ANDing
binary ANDing
It depends, you could use 255.255.254.0 which will allow you 512 machines, however you are limiting yourself to 512 as a maximum. You can calculate any subnet mask you like at www.subnetmask.info
Subnet masks that use either all ones or all zeroes in an octet are called classful subnet masks. 255.255.255.0 (11111111.11111111.11111111.00000000), 255.255.0.0 (11111111.11111111.00000000.00000000), 255.0.0.0 (11111111.00000000.00000000.00000000)
Subnet mask is a mask used to determine what subnet an IP address belongs to. Default gateway is the gateway in a network that a computer will use to access another network if a gateway is not specified for use.
That's not a valid subnet mask. Probably the subnet mask is supposed to be 255.255.192.0. You can convert each of the parts separated by dots to binary separately. Just use a scientific calculator, for example, the one that comes with Windows. To be a valid subnet mask, the binary equivalent must have a certain number of only ones, followed by only zeros.
Use the 'ifconfig' command on your adaptor, or just 'ifconfig -a'
255.255.255.0