What is what does atm mean?

ATM stands for Automated Teller Machine. It is an electronic banking device that allows customers to perform basic banking transactions without the intervention of a bank representative. These transactions may include withdrawing cash, depositing cash and cheques, checking account balances, transferring funds between accounts, buying mobile phone load, and paying bills. ATMs are usually available 24 hours a day and located in public places such as shopping centres, airports, and banks.