Classification
005 - Computer programming, programs & data
13
004 - Data processing & computer science
11
040 - [Unassigned]
3
006 - Special computer methods
2
003 - Systems
1
380 - Commerce, communications & transportation
1
381 - Commerce
1
384 - Communications; telecommunication
1
658 - General management
1
659 - Advertising & public relations
1