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.
The laptop was designed to make a personal computer easily portable. The first portable computer was the GriD Compass (weighing about 5 kilograms). It was invented by Bill M â¦ oggridge in 1979 and cost several thousand dollars when it was first sold in 1982.It was widely used by the military and aboard the Space Shuttle. The first true laptop was invented by Adam Osborne in 1981.It was called 'Osborne 1' and cost $1,795.t was invented by Bill M â¦ oggridge in 1979 and cost several thousand dollars when it was first sold in 1982. It was widely used by the military and aboard the Space Shuttle. The first true laptop was invented by Adam Osborne in 1981.