Well, this will get you started,
Today, computer has been helping human in banking exchange so much.
The computer has made banking transactions much easier for people for a while now.
Many years ago, when the computer was not still invented, you wanted withdraw money your account, you had to go to the bank absolutely.
Years ago, before the computer, you had no choice but to go to the bank yourself when you wanted to withdraw money.
[check your time frame—isn't it the case that computers were invented long before they were used by bank customers?]
And there are many many other features that we are still unknown that computer can do in banking.
There are unexplored possibilities for the computer's use in banking.
(If the features are unknown then we don't know that they exist. and so you can't even say that there are "many.")