Question

who was the inventor of visicalc

Answer 1

dan bricklin and bob

Answer 2

VisiCalc (for "visible calculator")[1] was the first spreadsheet computer program for personal computers, originally released for the Apple II by VisiCorp. It is often considered the application that turned the microcomputerfrom a hobby for computer enthusiasts into a serious business tool, prompting IBM to introduce the IBM PC two years later.[2]VisiCalc is considered the Apple II's killer app. It sold over 700,000 copies in six years, and as many as 1 million copies over its history
Initially developed in a 6502 assemblerrunning on the Multics time sharingsystem,[3][4][5] VisiCalc was ported to numerous platforms, both 8-bit and some of the early 16-bit systems. In order to do this, the company developed porting platforms that produced bug compatible versions. The company took the same approach when the IBM PC was launched, producing a product that was essentially identical to the original 8-bit Apple II version.

When Lotus 1-2-3 was launched in 1983, taking full advantage of the expanded memory and screen of the PC, VisiCalc sales practically ended overnight. Sales imploded so rapidly that the company was soon insolvent. Lotus Development purchased the company in 1985, and immediately ended sales of VisiCalc and the company's other products.