Those astronomers who develop novel or specialised instruments invariably reach a point at which they must move this equipment for one reason or another. The typical development cycle being: Development Lab ÃƒÂ· Test on small telescope -* Large telescope Other Hemisphere When the latest development was a new photographic emulsion this presented few difficulties. However, in the present era of such instruments as photon-counting multi-channel (Ref. 1,2 & 3) spectrometers where a computer is a necessary part of the equipment one is invariably faced with the alternatives of building the computer into the instrument or using the facilities provided by the observatories.
C. L. Stephens,
"CAMAC: A Proposed Standard For Astronomical Instrumentation", Proc. SPIE 0028, Instrumentation in Astronomy I, (1 September 1972); doi: 10.1117/12.953550; https://doi.org/10.1117/12.953550