The entry or exit point from a computer for connecting communications or peripheral devices.
Source(s):
NIST SP 800-82 Rev. 2
from
The Automation, Systems, and Instrumentation Dictionary
NISTIR 8183
from
NIST SP 800-82 Rev. 2
NISTIR 8183 Rev. 1
from
NIST SP 800-82 Rev. 2