Here are entered works on modern electronic computers first developed after 1945. Works on present-day calculators, as well as on calculators and mechanical computers of pre-1945 vintage, are entered under Calculators. --headings beginning with the word Computer
--subdivision Data processing under names of individual corporate bodies and under topical headings, e.g. Business--Data processing; Science--Data processing
Here are entered works on modern electronic computers first developed after 1945. Works on present-day calculators, as well as on calculators and mechanical computers of pre-1945 vintage, are entered under Calculators. --headings beginning with the word Computer
This heading may be further subdivided by the topic of the system, e.g., Information storage and retrieval systems--Accounting; Information storage and retrieval systems--Africa