TODO: Write up based on links. Thanks to Jason for finding the info!
Mention on page 12 of this Memoir: https://books.google.com/books?id=PAyqVmXjelcC&lpg=PA12&ots=pLIKvKi-f_&dq=IBM%20beer%20can&pg=PA12#v=onepage&q=IBM%20beer%20can&f=false
Brief overview of MA-2 plus alternate names here: http://www.secretprojects.co.uk/forum/index.php/topic,20357.msg201831.html#msg201831
Looks like a detailed project history is located in ‘Chapter IV The “Bomb Director for High Speed Aircraft”’ of the book located here: http://www.alternatewars.com/SAC/AirborneArmament/Volume_I.htm
Minor mention on these two pages from Flight Global: https://www.flightglobal.com/FlightPDFArchive/1956/1956%20-%200732.PDF, https://www.flightglobal.com/FlightPDFArchive/1956/1956%20-%200733.PDF
Overview of full system the MA-2/ANS-4 was a subsystem for: http://www.bombnav.org/INFO/B-52/ASQ38.htm
AN/APN-89 Doppler Ground Speed Computer, another subsystem in the AN/ASQ-38: http://www.glennsmuseum.com/bombsights/apn89.html