Windows 1.0

Its development began after the Microsoft co-founder and spearhead of Windows 1.0, Bill Gates, saw a demonstration of a similar software suite, Visi On, at COMDEX in 1982.

The demonstration featured a user interface similar to Multiplan and other contemporary Microsoft applications with a command bar at the bottom of the screen.

[7] Initially requiring 192 KB of RAM and two floppy disk drives, Microsoft described the software as a device driver for MS-DOS 2.0.

[6] Manufacturers of MS-DOS computers such as Compaq, Zenith, and DEC promised to provide support, as did software companies such as Ashton-Tate and Lotus.

"[9] IBM was notably absent from Microsoft's announcement,[7] and the corporation rejected Windows in favor of creating its own product called TopView.

[10] Microsoft had promised in November 1983 to ship Windows by April 1984,[7] although, due to various design modifications, its release date was delayed.

[13][14] De-emphasizing multitasking, the company stated that Windows' purpose, unlike that of TopView, was to "turn the computer into a graphics-rich environment" while using less memory.

[11] After Microsoft persuaded IBM that the latter needed a GUI,[1] the two companies announced in April 1987 the introduction of OS/2 and its graphical OS/2 Presentation Manager, which were supposed to ultimately replace both MS-DOS and Windows.

[22] IBM released this version on three 3.5-inch 720k floppies and offered it as part of their "Personal Publishing System" and "Collegiate Kit" bundles.

Besides the minimum system requirements, Microsoft has also published a note in which it recommended additional memory when using multiple applications or DOS 3.3.

[16][51] Critics considered the platform to have future potential but felt that Windows 1.0 had not fulfilled expectations and that it could not compete with Apple's GUI operating system.

[52] Reviews criticized its demanding system requirements, especially noting the poor performance experienced when running multiple applications at once, and that Windows encouraged the use of a mouse for navigation, a relatively new concept at the time.

[2] The New York Times compared the performance of Windows on a system with 512 KB of RAM to "pouring molasses in the Arctic" and that its design was inflexible for keyboard users due to its dependency on a mouse-oriented interface.

In conclusion, the Times felt that the poor performance, lack of dedicated software, uncertain compatibility with DOS programs, and the lack of tutorials for new users made DOS-based software such as Borland Sidekick (which could provide a similar assortment of accessories and multitasking functionality) more desirable for most PC users.

[2][55][56] Nathaniel Borenstein (who went on to develop the MIME standards) and his IT team at Carnegie Mellon University were also critical of Windows when it was first presented to them by a group of Microsoft representatives.

Underestimating the future impact of the platform, he believed that in comparison to an in-house window manager, "these guys came in with this pathetic and naïve system.

A Microsoft Windows 1.0 brochure which was published in January 1986
A Microsoft Windows 1.0 brochure published in January 1986
A screenshot showcasing MS-DOS Executive
MS-DOS Executive file manager