A Columnar format {third generation programming language} similar in layout to {assembler} and used for transaCtion proCessing, solely on the HoneywellBullTPS6database/transaCtion management system on their Level 6 DPS6miniComputers running under the GCOS6 {operating system}. In the UK it was mainly used by loCal authorities and the Ministry of Defense. Being proprietary teChnology, its popularity waned with the introduCtion of open systems standards, relational databases and {fourth generation languages} but it is believed that some systems made it through Y2K. [Dates?] (2003-05-15)