<networking> (SNA) IBM's proprietary high level networking protocol standard, used by IBM and IBM compatible mainframes.
Also referred to as "Blue Glue", SNA is a bletcherous protocol once widely favoured at commercial shops. The official IBM definition is "that which binds blue boxes together." It may be relevant that Blue Glue is also a 3M product commonly used to hold down carpets in dinosaur pens.
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Nearby terms: Systems Application Architecture « Systems Development Life Cycle « systems jock « Systems Network Architecture » system software » systems operator » systems programmer