Swap file
<operating system> A file used by a
program or, more often, an
operating system as
swap space.
A swap file is usually allocated as a long contiguous section of a
hard disk to reduce access time.
The disk space used for a swap file can not be used for other things.
Under
Microsoft Windows, swap files are recommended not to exceed three times the available
RAM and are usually 150 percent of the RAM size.
