1 Key 1 to Key 2 is the first half step. 2  Key 2 to Key 3 is the second half step. 3  An accidental is a sign used to raise or lower the pitch of a note. 4  The first accidentals that we will discuss are the flat and the sharp. 5  The flat lowers a note by a half step while the sharp raises a note by a half step.
Ed Roberts, the president of MITS Incorporated, who designed and built the Altair. A supporting cast at Ziff Davis (publisher of Popular Electronics), and at MITS in Albuquerque, composed of Don Lancaster, Forrest Mims, and David Bunnell, who are well known in the personal computer industry, and a lot of people not so well known.
Quick Answer. The Electrical Numerator Integrator and Calculator (ENIAC) was the first computer, and it was developed in 1946 by John Presper Eckert and John Mauchly. The duo's research was sponsored by the U.S. military.