FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -VisiCalc (for “visible calculator") was the first spreadsheet computer program for personal computers, originally released for Apple II by VisiCorp on 17 October 1979.

Detailed explanation-2: -The first spreadsheet program was VisiCalc, written for the Apple II computer in 1979. For many users, this application most vividly showed the utility of personal computers for small businesses-in some cases turning a 20-hour-per-week bookkeeping chore into a few minutes of data entry.

Detailed explanation-3: -VisiCalc was the first computer spreadsheet program. It was released to the public in 1979, running on an Apple II computer. While most early microprocessor computers had been quickly supported by BASIC and a few games, VisiCalc introduced a new level in application software.

Detailed explanation-4: -Information Systems oral history and some published newspaper and magazine stories celebrate Dan Bricklin as the “father” of the electronic spreadsheet. In 1978, Harvard Business School student, Daniel Bricklin, came up with the idea for an interactive visible calculator (see email from Frankston, 4/15/1999a).

Detailed explanation-5: -In formulas, VisiCalc uses the A1 notation. VisiCalc of Dan Bricklin and Bob Frankston uses Apple II, Apple SOS, CP/M, Atari 8-bit family, Commodore PET, TRSDOS, Sony SMC-70, DOS, HP series 80 operating system.