FO MO BO
IBD(ECM+DCM+M/A), Research, Sales trading, asset mgmt, wealth mgmt, private banking risk, trade support, compliance, product control, confirmation, control room settlements, reconciliations, finance, IT, treasury, booking, clearing & other operations
F,M,B: Front, Middle, Back Office
M&A: Mergers and Acquisitions
IBD: Investment Banking Department  
ECM: Equity Capital Markets  
DCM: Debt Capital Markets