Microsoft began working on Interface Manager, the project that later became Windows 1.01, in September 1981.
COMDEX in 1982, one of the biggest computer fairs of the time, VisiCorp, a company whose main income came from VisiCalc, the first spreadsheet program for personal computers, showed to the public for the first time its graphical interface Vision. The presentation was a great success, and vision became one of the most anticipated products and commented.
Vision Applicatons Manager
In November 1983, at the same COMDEX that such good results had given it a VisiCorp the past year, Microsoft showed for the first time Windows 1.0, in an attempt to counter the launch of vision.
Vision was launched in December 1983, costing the operating system, called Vision Applications Manager, 495 dollars. This required the use of a mouse, with the official price of the device, the Vision Mouse, $ 250.
Vision Applications Manager allowed to communicate with each other and integrate new applications VisiCorp initially by the Calc spreadsheet Vision (395 U.S. dollars) program for creating graphical business Vision Graph ($ 250) and the word processor Word Vision (375 U.S. dollars).
The total cost of the package was of 1765 U.S. dollars, without taking into account the price of the machine on which to implement Vision, which required 2.2MB of disk space and 512KB of RAM, a fairly substantial amount for the period.
The high price, coupled with new users to its complexity and its slow pace, made sales of vision does not finish off. This is joined by the release of Apple's Macintosh, with a graphical interface very smoothly and prices for the period, and harassment and demolition of Microsoft, announcing that Windows 1.0 would be available by the middle of next year with a much lower price and similar features (in fact the development of Windows would be very much influenced by Vision).
But the proposed Microsoft was delayed several times, and it was not until two years later, on November 20, 1985, when it was released to market as Windows 1.01, a version editing various bugs in Windows 1.0, the version presented at the COMDEX 1983, and has the honor of being the first Windows market.
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