Original sentence: Meanwhile, IBM had created its IBM PC with an open architecture, which spurred it to success, though in the end its off-the-shelf, open architecture allowed clones to be manufactured by startup competitors such as Compaq, Dell, Gateway, and countless others, leading eventually to IBM's abandonment of the personal computer business (selling its PC division) in 2005
Edited sentence: Meanwhile, IBM had created its IBM PC with an open architecture, which spurred it to success, though in the end its off-the-shelf, open architecture allowed clones to be manufactured by up-start competitors such as Compaq, Dell, Gateway, and countless others, leading eventually to IBM's abandonment of the hardware business (selling its PC division) in 2005