Abakus VCL is a professional set of Delphi and C++Builder realtime components for virtual instrumentation. Abakus VCL is a set of professional Delphi / C++Builder realtime components for virtual instrumentation. They can be used at home as well as for business purposes. Meters, Bars (Gauge), with linear or log(10) scaling Digital indicators (time, value) Tank displays Operating Point display Trend/recorder Dial (knob), Sliders buttons, switches, LED indicators DB-Aware components