That is to say, the lesson of the QWERTY story remains the resilience of a design created for an outmoded technology's dictates. QWERTY is still an example of technological momentum. But the development of the design wasn't accidental or silly: it was complex, evolutionary, and quite sensible for Morse operators.
The Half Sheet cake is approximately 11 X 15 inches in size and is typically one layer thick but may come in single or multiple layers if a filling is added. Source(s): http://www.usabirthdays.com/delivery/cak...
Figure at least one slice of cake per guest. Birthday cakes are traditionally cut in 1 x 2 slices for Tiered cakes. Serving size for sheet cakes is 2 x 2 slices. Some cake toppers may require several days notice due to availability. 1/4 Sheet Cake: Serves 24. 1/2 Sheet Cake: Serves 48.