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VisiCalc ("visible calculator") [1] is the first spreadsheet computer program for personal computers, [2] originally released for the Apple II by VisiCorp on October 17, 1979. [1] [3] It is considered the killer application for the Apple II, [4] turning the microcomputer from a hobby for computer enthusiasts into a serious business tool, and then prompting IBM to introduce the IBM PC two years ...
VisiCalc was released in 1979, becoming the earliest generally agreed-upon example of a killer application.. Although the term was coined in the late 1980s [4] [5] one of the first retroactively recognized examples of a killer application is the VisiCalc spreadsheet, released in 1979 for the Apple II.
1983, Lotus 1-2-3 for MS-DOS, the first killer application for the IBM PC, it took the market from Visicalc in the early 1980s. 1983, Dynacalc for OS-9 a Unix-like operating system, similar to VisiCalc. [11] 1984, Lotus Symphony for MS-DOS, the follow-on to Lotus 1-2-3; 1985, Boeing Calc for MVS and MS-DOS, written by subsidiary of aviation ...
VisiCalc was the first electronic spreadsheet for personal computers, developed by Software Arts and published by VisiCorp. Visi On was the first GUI for the IBM PC . Bill Gates came to see Visi On at a trade show, and this seems what inspired him to create a windowed GUI for Microsoft .
In computer science, a lookup table (LUT) is an array that replaces runtime computation with a simpler array indexing operation, in a process termed as direct addressing.The savings in processing time can be significant, because retrieving a value from memory is often faster than carrying out an "expensive" computation or input/output operation. [1]
VisiCalc (1979) was the first electronic spreadsheet on a microcomputer, [11] and it helped turn the Apple II into a popular and widely used personal computer. Lotus 1-2-3 was the leading spreadsheet when DOS was the dominant operating system. [12] Microsoft Excel now has the largest market share on the Windows and Macintosh platforms.
VisiCalc sales exceeded 700,000 units by 1983. [ 7 ] Fylstra's software products company, later called VisiCorp , was the #1 personal-computer software publisher in 1981 with $20 million in revenues as well as in 1982 with $35 million (exceeding Microsoft which became the largest such firm in 1983).
It quickly overtook VisiCalc, as well as Multiplan and SuperCalc, the two VisiCalc competitors. Lotus 1-2-3 was the state-of-the-art spreadsheet and the standard throughout the 1980s and into the early 1990s, part of an unofficial set of three stand-alone office automation products that included dBase and WordPerfect , to build a complete ...