Software
To install software or data means to load the files containing the software or data onto the target computer.'
System
installation is
| “ | [t]he phase in the system life cycle that includes assembly and testing of the hardware and software of a computerized system. Installation includes installing a new computer system, new software or hardware, or otherwise modifying the current system.[1] | ” |
- ↑ U.S. Food and Drug Administration, Glossary of Computerized System and Software Development Technology 16 (Aug. 1995) (full-text).