Both these effects reduce the workload of the heart, so beta blockers are of value in treating the symptoms of angina pectoris, the chest pain brought on by narrowing of the coronary arteries that causes inadequate delivery of oxygen-rich blood to the heart muscle.
3 1. The invention and the history of the Dell computer is quite interesting. First of all, it was in 1984 when Michael Dell, a student at the University of Texas at Austin, created the company PC's Limited. He only had a starting capital of $1,000.
Tweet. Who invented the first computer is not a question with a simple answer. There have been a lot of major milestones throughout history that warrant mentioning. The adventure starts in the year 1936.1936- Konrad Zuse invented the Z1 Computer. This was the first computer that was freely programmable.1942- John Atanasoff and Clifford Berry created the ABC Computer. 1944- John Presper Eckert and John W. Mauchly came up with the idea for the ENIAC 1 computer.936- Konrad Zuse invented the Z1 Computer. This was the first computer that was freely programmable. 1942- John Atanasoff and Clifford Berry created the ABC Computer. 1944- John Presper Eckert and John W. Mauchly came up with the idea for the ENIAC 1 computer.