Software development from late 1970s to current:
- Atari 800 using Atari BASIC and Atari Assembler late 1970s
- IBM-PC 5150 Microsoft BASICA and Microsoft MASM early 1980s
- R:Base, D:Base mid 1980s - 1990s
- Lotus 1-2-3/macros early 1980s - late 1980s
- COBOL, IMS, CICS, DB/2, VSAM, IBM 3090 Mainframe late 80s - late 90s
- Microsoft Office development early 1990s - current
- Microsoft Excel early 1990s - current
- Microsoft Visual BASIC early 1990s - current
- SQL Server / DBA work early 1990s - current
- Access, Visual Foxpro early 1990s - current
- HTML, CSS, PHP, ASP, VBA etc late 1990s - current
- Data cleansing, ETL, analytics, exporting, reporting late 70s - current
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