n.
1) to operate, use a ~; to turn on; turn off a ~
2) to program a ~
3) an analog; digital; electronic; general-purpose; home; mainframe ~; micro~; mini~; parallel; personal; serial ~
4) the ~ is down ('the ~ is not functioning')
5) the ~ is up ('the ~ is functioning')
6) a ~ bombs ( AE ), crashes
7) on a ~ (to run a program on a ~)