(n) (comp) callback modem
(n) (comp) tape backup
(n) (comp) backup copy
(n) backup light
(n) (comp) backup route
(n) back-tracking
(n) backpressure
(n) background music (wasei: back music)
(n) feedback control
(n) (comp) fallback facility
(n) flexible back
(n) (comp) hot backup
(n) (comp) stealth callback
(n) (comp) cell loopback test
(n) biofeedback
(n) backup system
(n) (comp) backup battery
(n) (comp) backup file
job-recovery control file
(n) (comp) background printing
(n) type of scuba buoyancy control device with a back-mounted air bladder (wasei: back float type)
(n) (comp) battery backup
(n) (comp) piggyback board
(n) (comp) file backup
(n) (comp) rollback-initiating indication
(n) (comp) rollback-initiating request
(n) (comp) online backup
(n) (comp) campus backbone
(n) (comp) back-end processor
(n) (comp) background job
(n) back-propagation