block

1. <unit> A unit of data or memory, often, but not exclusively, on a magnetic disk or magnetic tape.

Compare record, sector.

2. <operating system> To delay or sit idle while waiting for something.

Compare busy-wait.

3. <programming> A delimited section of source code in a block-structured language.

Nearby terms:
bloat « bloatware « BLOB « block » Block And List Manipulation » Block Diagram Compiler » blocked records