Columbia subject headings:
Computer industry--History.
Computer service industry--History.
Electronic data processing--Societies, etc.--History.
Research--Data processing--Societies, etc.--History.
Harvard subject headings:
Computer industry--History.
Computer service industry--History.
Electronic data processing--Research--Societies, etc.--History.
Electronic data processing--Societies, etc.--History.
Princeton subject headings:
Computer industry--History.
Computer service industry--History.
Electronic data processing--Research--Societies, etc.--History.
Electronic data processing--Societies, etc.--History.