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...
A quick guideline for servings follows: 1  A 1/4 Sheet Cake Pan is 9 by 12 inches, which will usually serve 12 to 20 people. 2  A 1/2 Sheet Cake Pan is 11 by 15 inches, which will usually serve 18 to 40 people.  A full Sheet Cake Pan is 18 by 24 inches, which will usually serve 48 to 96 people. This is a fabulous event cake for charities and grand company celebrations.