Windows 1.0

Microsoft showed its desire to develop a graphical user interface (GUI) as early as 1981. The development of Windows began after Bill Gates, co-founder of Microsoft and the lead developer of Windows, saw a demonstration at COMDEX 1982 of VisiCorp's Visi On, a GUI software suite for IBM PC compatible computers. Microsoft first demonstrated a window manager to the press in September 1983. The demonstration featured a user interface similar to Multiplan and other contemporary Microsoft applications with a command bar at the bottom of the screen. It also showed multiple application windows in both overlapping and tiled arrangements. This user interface concept was soon reworked to only support tiled windows and to change the Multiplan-like command bar into a menu bar under each window's title bar. The redesigned environment ultimately had its public debut at Fall COMDEX 1983 in November 1983. Initially requiring 192 KB of RAM and two floppy disk drives, Microsoft described the software as a device driver for MS-DOS 2.0. By supporting cooperative multitasking in tiled windows when using well-behaved applications that only used DOS system calls and permitting non-well-behaved applications to run in a full screen, Windows differed from both Visi On and Apple Computer's Lisa by immediately offering many applications. Unlike Visi On, Windows developers did not need to use Unix to develop IBM PC applications; Microsoft planned to encourage other companies, including competitors, to develop programs for Windows by not requiring a Microsoft user interface in their applications. IBM was notably absent from Microsoft's announcement, and the corporation rejected Windows in favor of creating IBM TopView. By late 1984, the press reported a "War of the Windows" between Windows, TopView, and Digital Research's Graphics Environment Manager (GEM). Whether corporate customers wanted any graphical interface was unclear—Jim Manzi of Lotus wondered during a 1987 joint interview with Gates, "why did it have to be so messy, the whole transition process that we're putting the world through?"—but from early in Windows's history, Gates viewed Windows as Microsoft's future. He told InfoWorld magazine in April 1984 that "our strategies and energies as a company are totally committed to Windows, in the same way that we're committed to operating-system kernels like MS-DOS and Xenix. We're also saying that only applications that take advantage of Windows will be competitive in the long run". Computerworld wrote in 1987 that "Gates has pushed [Windows] almost fanatically for years". Steve Ballmer replaced McGregor after he left the team in January 1985. During its development and before its windowing system was developed, it was briefly referred to by the codename "Interface Manager". 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. After Microsoft persuaded IBM that the latter needed a GUI, 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. Release versions On , the first retail release, Windows 1.01, was released in the United States at a cost of US$99 (equivalent to about $ in ). In May 1986, the next release, 1.02, was published mainly for the European market, also introducing non-English versions of Windows 1.0. The version 1.03, released in August 1986, included enhancements that made it consistent with the international release like drivers for non-U.S. keyboards and additional screen and printer drivers, and superseded both version 1.01 in the US and version 1.02 in Europe. Version 1.04, released in April 1987, added support for the new IBM PS/2 computers, although no support for PS/2 mice or new VGA graphics modes was provided. However, on May 27, 1987, an OEM version was released by IBM, which added VGA support, PS/2 mouse support, MCGA support, and support for the 8514/A display driver. 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. Microsoft ended its support for Windows 1.0 on December 31, 2001, making it the longest-supported version out of all versions of Windows. == Features ==

Windows 1.0 was built on the MS-DOS kernel, while it runs as a 16-bit shell program known as the MS-DOS Executive, and it offers limited multitasking of existing MS-DOS programs and concentrates on creating an interaction paradigm (cf. message loop), an execution model and a stable API for native programs for the future. The operating environment supports the use of a mouse, which allows users to perform click-and-drag operations. Contrary to modern Windows operating systems, the mouse button had to be kept pressed to display the selected menu. Paint only supports monochrome graphics. Initially, Puzzle and Chess were supposed to appear as playable video games, although Microsoft scrapped the idea; instead, it introduced Reversi as a commercially published video game. It was included in Windows 1.0 as a built-in application, and it relies on mouse control. The operating environment also introduced the Control Panel, which was used to configure the features of Windows 1.0. The operating environment does not allow overlapping windows, and instead, the windows are tiled. The Windows 1.0 SDK contains debugging versions of these files, which can be used to replace the corresponding files on the setup disks. The setup program combines multiple system files into one, so that Windows boots faster. Using the debugging KERNEL.EXE provided by the Windows 1.0 SDK one can create a "slow boot" version of Windows, where the files are separate. Windows 1.0 includes a kernel, which performs functions such as task handling, memory management, and input and output of files, while the two other dynamic-link libraries are the user interface and Graphics Device Interface. The operating environment could also move the program code and data segments in memory, to allow programs to share code and data that are located in dynamic-link libraries. Windows 1.0 implemented the use of code segment swapping. Version 1.02 introduced drivers for European keyboards, as well as screen and print drivers. The last Windows 1.0 release, 1.04, introduced support for IBM PS/2 computers. Due to Microsoft's extensive support for backward compatibility, it is not only possible to execute Windows 1.0 binary programs on current versions of Windows to a large extent but also to recompile their source code into an equally functional "modern" application with limited modifications. In March 2022, it was discovered that the operating environment also includes an easter egg that lists the developers who worked on the operating environment along with a message that says "Congrats!". == System requirements ==

The official system requirements for Windows 1.0 include the following. 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. == Reception ==

Windows 1.0 was released to lukewarm and mixed reviews. 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. 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. 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. According to Computerworld magazine, Windows 1.0 received 500,000 sales from its release in 1985 up to April 1987. In retrospect, Windows 1.0 was regarded as a flop by contemporary technology publications, who, however, still acknowledged its overall importance to the history of the Windows line. Describing Windows development in the early 1980s as "a joke in the industry", Chris Pratley of Microsoft wrote in 2004 that "Windows 1.0 ... was sort of a demo". 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. We just knew they were never going to accomplish anything." The Verge considered the poor reception towards the release of Windows 8 in 2012 as a parallel to Microsoft's struggles with early versions of Windows. In a similar fashion to Windows 1.0 running atop MS-DOS as a layer, Windows 8 offered a new type of interface and software geared towards an emerging form of human interface device on PCs, in this case, a touchscreen, running atop the legacy Windows shell used by previous versions. == See also ==