From Longman Business Dictionary
onlineon·line /ˈɒnlaɪnˈɑːn-, ˈɒːn-/ (also on-line) adjectiveadj COMPUTING directly connected to a computer network or the Internet, or available on the Internetonline gambling
online shopping
an online bank
Each terminal has on-line access to the database.
→ compare off-line —on-line adverbadvThese tasks can be carried out on-line.