Mainframe & Early Systems
Where the discipline started: close to the machine, close to the business.
IBM 370 AssemblerFORTRAN IV/VCOBOLREXXCLIST
Technology Timeline
From IBM 370 assembler to mobile apps and modern web systems.
A practical working history across programming languages, operating systems, databases, transaction environments, utilities and modern app platforms.
Qualities of a good programmer
Has a logical mind. Is curious. Tries to find new ways.
Air Force Academy course material, circa 1974
Languages
Application & Web Development
From enterprise systems to web applications and scripting.
CJavaJavaScriptGoogle Apps ScriptHTMLPHP
Mobile & Modern UI
Modern app development across iOS, Android and cross-platform tooling.
FlutterDartSwiftUIAndroid Studio
Systems & Environments
Mainframe Operating Systems
- DOS/VS
- VM
- MVS
Transaction & Enterprise Environments
- CICS
- IMS
- Environ/1
Databases & Storage
- DL/1
- IMS DB
- TOTAL
- VSAM
- MySQL
Utilities & Job Control
- JCL
- PROC
- XCODE
Modern Web Platform
- WordPress customization
- PHP hooks
- Custom scripts