As a software engineer, Bob Campbell has developed numerous Clarion applications for government entities and businesses starting with Professional Developer 2.0. He started with the Ingres database in the early 1980’s and then got hooked on developing Clarion applications for personal computers in the early 1990’s.
He developed a guard scheduling program for a security force of 250 personnel using CPD 2.1, which is still being used today on a 64-bit Windows computer using vDos. He recently received a new contract to rewrite it using Clarion 11. The Clarion program calls a C program that calculates the Ford-Fulkerson maximum flow algorithm.
He started using Citrix in 1996 having users sign on to an inhouse Citrix server at a national laboratory to run his radiation protection automation system for 500 radiation control technicians. In 2008, he switched to a Windows Server using Microsoft RDS Client Access Licenses and Microsoft SQL Server.
In 2012 he starting using TSplus on a cloud-based Windows Server for 240 local government entities and businesses as clients.