Banking service in India evolved over years for better and faster service to the customer. When the banking operations were done only manually, we could see bank staff sitting behind very big and very thick 'Ledgers' and registers. Al the transaction data were made and stored in the premises of the bank branch. Passbook entries, account statements, sending intimation to customers - all were manually done.
Then came partial mechanisation and partial computerisation which again led to local computerisation. In local computerised banking, all the branch office transactions were done on computer and all the data were stored and kept in local individual PC s .
However there came a need of networking of all branches and that with the central office and regional controlling offices of a bank so that transactions between branches , monitoring and accessing needed management data from controlling offices all could be done easily and on real time basis. This needed a core server at one place where all the data are input , output and stored at real time. That is Core banking.
With core banking the unique significance of a branch has lost its import. Banking became anywhere banking. It is only because of core banking that customers could do online transactions at any place any time any day.
But banking has advanced further and transactions between different banks at different places also happen real-time. The public is also benefited by these because now by using NEFT,RTGS a customer of one bank can remit money to a customer of another bank, sitting in his own office or home using net banking. Interbank clearing has become very fast . "Collection' of cheques has become redundant, as cheques are payable at par everywhere.
That is why one bank had advertised' bank branch in your pocket'.
Except for some local co-operative banks almost all banks are now under core banking. If your account number is a long chain of 15 digits if your cheque is having words payable at par, and having IFSC code, if you are given net banking facilities, then you can be sure that your bank has core banking facility. Or you can ask your branch and confirm.