•
Product backlog, a list of requirements for a software product in development; see •
Backlog (academic journals), the phenomenon of a number of accepted papers waiting a significant time to be published •
Backlog of unexamined patent applications, all patent applications that have been filed and still remain to be examined • An argument to Berkeley sockets
"listen" function representing the number of pending connections • Customer lead time in
sales and operations planning == Music ==