Programs will stop. It might even cause other computers to stop. This is a number to describe how much data can be stored. On the SGIs you can use the command 'hinv' to see what's there. It stands for hardware inventory.
Virtual memory resides on the swap disk.
The theory group has a network of many computers that can share data with each other. It is a complicated organization of computers, and sometimes it can be very delicate. People who use the computers can use one, or two, or even more computers at the same time to do their work. A very important thing to understand about the network are the differences between processors, memory, and disk space. Sometimes on the network, several processors will be able to access one hard disk .