Windows 1.0

In 1985 Microsoft released the first version of Windows (Windows 1.0), a 16 bit graphical user interface (GUI), for its operating system (MS-DOS) that had been included on the IBM PC and supported computers since 1981. 55 programmers participated in its development and did not allow cascading windows

Windows 1.0 was considered by users as an operating system full of bugs, quite visually ugly and slow. It was severely limited due to Apple's legal resources, which did not allow imitations of its user interfaces. For example, windows could only be tiled on the screen; they could never overlap or hide from each other. There was also no recycle bin because Apple believed they had the patent for this paradigm or concept. Both limitations were removed when Apple's appeal was rejected in court. On the other hand, the programs included in the first version were toy apps with little appeal for professional users

The project was initially called Interface Manager. It was officially presented to the public on November 10, 1983 and renamed Microsoft Windows. In the blue box a PC was announced with the new Windows graphical interface, several windows appeared very close together. Microsoft's sales strategy for Windows was to provide a new development environment and a new software environment in which bitmaps will be used for images and a mouse as a pointer, thus freeing the user from the MS-DOS command environment that required writing commands in the C-drive shell (C:-)

Microsoft began developing the Interface Manager that later derived from Microsoft Windows in September 1981. The initial interface had menus located at the bottom of the window and the interface underwent changes in 1982, when the drop-down menus were designed. The first commercial version did not appear until 1985

Windows promised an easy-to-use graphical interface, device-independent graphical use, as well as multitasking support

Editions

Windows 1.01

First commercial version, version 1.00 contained a major bug and was removed prior to its release. Included file manager, calculator, calendar, clock, notepad, various games and an MS-DOS shell emulator

Windows 1.02

It was released on November 20, 1985 in the form of an update. This version surpassed the 640K barrier

Windows 1.03

It was released on August 29, 1986. It was very similar to the 1.02 but with some slight improvement, it was distributed in 6 diskettes of 5 \frac{1}{4} 360 Kib. The complete installation slightly exceeded 2 MiB. This version supported different keyboard layouts (from 26 countries), a diverse variety of input devices, CGA/EGA and 25 printer models (including support for multiple printers). It could also be loaded onto MS-DOS 3.2

Windows 1.04

It was released in April 1987. Added support for THE VGA graphics adapters of the new IBM PS/2 P PS PCs

Ending support

In November 1987, it was replaced by Windows 2.0. , product support lasted until December 31, 2001, about 16 years

Features

• Distributed in 6 diskettes out of 5 \frac{1}{4} of 360 KiB:
  • Installation
  • Structure
  • Utilities
  • Sources
  • Desktop applications
  • Disk programs
• Graphical interface with drop-down menus, cascading windows and mouse support
• Screen graphics (support for CGA graphics, Hercules cards and EGA) and printer (support for 19 models) independent of the device
• Cooperative multitasking between applications Windows