Updated: 10/02/2017 by Computer Hope

ATM may refer to any of the following:

1. Short for asynchronous transfer mode, ATM is a dedicated-connection switching technology that organizes digital data into 53-byte cell units for transmission. ATM can transmit data at speeds of 155 or 622 MBps and faster.

Bank ATM

2. Short for automated teller machine, an ATM dispenses money from a person's account at banks. The first U.S. ATM was put in service at 9:00 A.M. on September 2, 1969. The picture shows an example of what a typical ATM looks like today.

3. Shorthand for at the moment, ATM is commonly used in chat-based communications. Below are examples of how this could be used in chat.

I'm busy ATM.

ATM I'm watching the Simpson's.

Cell, Chat terms, Computer acronyms, Network terms, NSAP, NSPA, VCI, VCID