1) Online banking and mobile banking have become increasingly popular, providing convenient access to banking services through digital platforms.

2) Bats are the only mammals capable of sustained flight.

3) The insurance industry employs a wide range of professionals, including underwriters, actuaries, claims adjusters, and insurance agents.

4) The first successful mass-produced personal computer, the IBM PC, was introduced in 1981 and played a significant role in popularizing the use of computers in homes and offices.