1. existing or occurring before the development or widespread use of computers

Examples

• The precomputer era required all calculations to be done by hand.
• Many precomputer accounting systems relied on ledger books and adding machines.
• Researchers had to use precomputer methods like card catalogs to find information.
• The precomputer generation of scientists used slide rules for complex calculations.
• Office work in the precomputer age was much more labor-intensive.
• Precomputer data storage involved filing cabinets full of paper documents.