
What Is Computational Thinking? ◾ 21
of Manchester, England, and the rst computer to use the stored program
concept. However, it was never intended to be a practical computer but
rather part of a test bed for other hardware. By September of the same
year, ENIAC had been modied to use stored programs, making it a con-
tender for rst modern computer.
Regardless of which invention should be considered to be most signi-
cant, what is clear is that during the late 1930s and throughout the 1940s
there was a urry of research taking place around the world to create early
computing devices.
Within a few years computer scientists had grown wea ...