1. computer
... operating system. The abacus was probably the first computer and it was the birth of it. It was a wooden rack with parallel wires on which beads are strung. All ordinary math operation could be done on it. Blaise Pascal invented the first mechanical computer in 1642 at the 19. It was a calculator that you fed numbers by turning dials. Pascal built ... ...
- Word Count: 911
- Approx Pages: 4
- Grade Level: High School