The Pc Technology (CT) program has been developed to supply coaching in the principles underlying the design of modern laptop methods. IBM establishes the 650 as its first mass-produced laptop, with the company selling 450 in just one yr. Spinning at 12,500 rpm, the 650´s magnetic data-storage drum allowed much quicker entry to saved data than other drum-primarily based machines. The Mannequin 650 was additionally extremely well-liked in universities, the place a era of students first realized programming.