- ADT
- Abstract Data Type
- API
- Application Programming Interface
- ASCII
- ISO-646-US 7-bit character set
- BCD
- Binary Coded Decimal
- BOM
- Byte Order Mark
- EBCDIC
- Extended Binary Coded Decimal Interchange Code
- EBNF
- Extended Backus-Naur Formalism
- ETHZ
- Eidgenössische Technische Hochschule Zürich, Swiss Federal Institute of Technology Zurich
- FFI
- Foreign Function Interface
- IDE
- Integrated Development Environment
- ISO
- International Standards Organisation
- PIM
- Programming in Modula-2
- PIM2
- Programming in Modula-2, 2nd Edition
- PIM3
- Programming in Modula-2, 3rd Edition
- PIM4
- Programming in Modula-2, 4th Edition
- SXF
- Scalar Exchange Format
- UCS
- Unicode Character Set
- UTF8
- UCS Transformation Format 8-bit
- VLA
- Variable Length Array