File organization (Computer science) Database management 13 Data structures (Computer science) 5 COBOL (Computer program language) 4 Congresses 3 Information storage and retrieval systems 3 Data processing 2 Electronic data processing 2 Electronic digital computers 2 Engineering design 2 Programming 2 System design 2 Algorithms 1 BASIC (Computer program language) 1 Computer algorithms 1 Computer graphics 1 Computer networks 1 Computer programming 1 Computer storage devices 1 Computer-aided design 1 Data disk drives 1 Data tapes 1 Database design 1 Databases 1 Distributed processing 1 Handbooks, manuals, etc 1 IBM Personal Computer 1 MIDAS (Electronic computer system) 1 Management 1 Management information systems 1