(1) (
Point
of
Presence) The point at which a line from a long distance carrier (IXC) connects to the line of the local telephone company or to the user if the local company is not involved. For dial-up access to the Internet via analog modem, the POP is the local telephone exchange that the modem dials into to log in. See
Super POP.
(2) (
Post
Office
Protocol) See
POP3.
(3) Retrieve an item from a stack. See
push/pop.
(4) (
Package for
Online
Programming) See
POP-1.
(5) See
package on package.