The state of being connected to the Internet or to another type of computer network, such as a LAN. On the Internet, if you lose your connectivity, you are no longer online and must redial your ISP. When ISPs get many users signing on all at once, the connectivity weakens due to all the traffic (only so much data can transfer through certain phone lines). If someone asks, "What is your connectivity?" this usually means the speed of your Internet connection, such as 28.8, 56K, ISDN, DSL, or T1.