abstract:Shellsort, also known as Shell sort or Shell's method, is an in-place comparison sort. It generalizes an exchanging sort, such as insertion or bubble sort, by starting the comparison and exchange of elements with elements that are far apart before finishing with neighboring elements.
The system also has more or less the same book-inspired shape as Lenovo's U-series Ultrabooks, meaning when the notebook is closed, the top and bottom edges protrude ever so slightly beyond the sides, sort of like a hardcover shell cradling a spine full of pages.
The design is simple: it's just a plastic shell with a shutter button, a dial for controlling shutter speed and a hand grip -- the sort you'd normally find on a compact camera.