USB Universal Serial Bus - Summa Compatible Computer Devices

Description extracted from Wikipedia:

other uses TOC right Summa and its diminutive summula (plural summae and summulae, respectively) was a medieval didactics literary genre written in Latin, born during the 12th century, and popularized in 13th century Europe. In its simplest sense, they might be considered texts that 'sum up' knowledge in a field, such as the compendiums of theology, philosophy and canon law. Their function during the Middle ages was largely as manuals or handbooks of necessary knowledge used by individuals who would not advance their studies any further.