Short answers, pulled from the story.
Electric and Musical Industries was founded in March 1931. The company emerged from the merger of Columbia Graphophone Company and Gramophone Company to form a vertically integrated entity producing sound recordings and equipment.
Godfrey Hounsfield led the development of the first CT scanner at EMI's Central Research Laboratories in Hayes during the early 1970s. He received financial support from the UK Department of Health and Social Security for this project which won him the Nobel Prize in 1979.
Terra Firma Capital Partners acquired EMI for £4.2 billion in August 2007. Guy Hands implemented restructuring plans that cut between 1,500 and 2,000 jobs and aimed to reduce costs by £200 million annually.
Universal Music Group purchased EMI recorded music operations for £1.2 billion on the 12th of November 2011 with final approval granted on the 28th of September 2012. Sony/ATV Music Publishing acquired EMI music publishing operations for $2.2 billion while Warner Music Group bought Parlophone Records and other labels.
Electric and Musical Industries opened legendary recording studios at London's Abbey Road in 1931. The year the company formed marked the beginning of these facilities which later hosted artists like the Beatles under George Martin.