A Transport Services Access Point (TSAP) is an end-point for communication between the Transport layer (layer 4) and the Session layer in the OSI (Open Systems Interconnection) reference model. Each TSAP is an address that uniquely identifies a specific instantiation of a service. TSAPs are created by concatenating the node's Network Service Access Point (NSAP) with a transport identifier, and sometimes a packet and/or protocol type.
In 1939, the Overland Candy Company introduced the predecessor to Whoppers, a malted milk candy called Giants. Overland merged with Chicago Biscuit Company, Leaf Gum, and Leaf Machinery, in 1947. Two years later, Leaf Brands reintroduced malted milk balls under the name of Whoppers.
By 1961, the rechristened Burger King and its signature burger the Whopper had begun to spread across the United States. In 1967, the Pillsbury Company bought Burger King Corporation for $18 million, and with the baking company's capital behind it, by the late 1970s, Burger King was able to grow to become America's second-largest burger chain, behind McDonald's.