Computers Mechanical -- See Calculators Here are entered works on present-day calculators as well as on calculators and mechanical computers of pre-1945 vintage. Works on modern electronic computers first developed after 1945 are entered under Computers.
--subdivision Programming under types of computers, microprocessors, etc.; and under names of individual computers, microprocessors, etc., e.g. Microcomputers--Programming; IBM Personal Computer--Programming
Computers Security Measures -- See Computer security Here are entered general works on protecting computer hardware and software from accidental or malicious access, use, modification, disclosure, or destruction. --subdivision Security measures under names of individual computers, e.g. IBM computers--Security measures
Computing Laboratories -- See Computation laboratories Here are entered works on facilities where numerical calculations are carried out, usually by computer. Works on the use of classroom activities and experiments in the study and teaching of mathematics are entered under Mathematics laboratories.