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It however already included a number of original device drivers, mainly for graphics, which were not managed by MS-DOS at all, but also for the mouse, for the keyboard and for printers.
Version 1.0 was preannounced by Microsoft many years in advance, being infamous for being a never appearing vaporware. This was done to deflate the sails of VisiCorp's VisiOn GUI.
This first version of Windows, which was released in 1985, ran a shell program known as MS-DOS Executive.
One of the interesting aspects of the system were the non-overlapping windows, which were instead tiled. Only dialog boxes could appear over other windows.
Windows 1.0 executables, while having the same .exe extension and initial file header as MS-DOS programs, did not yet contain the so-called MS-DOS stub which prints the "This program must be run under Windows" or similar message and exits when the program is run outside of Windows. Instead, the file header was formatted in such a way as to make DOS reject the executable with a "program too large to fit in memory" error message.
Finally, almost 20 years later, Windows XP is still able to run Windows 1.0 applications to a certain extent.
From the beginning, Windows was intended to multitask programs (although this originally only applied to specially-written applications and for many versions the multitasking was non-preemptive), so Windows program always had their own menu bar rather than switching a single menu bar at the top of the screen like Apple Macintoshes did (and still do).
Another GUI for the PC platform at the time was GEM. It had a nicer look, notably because it copied much more from the Macintosh GUI, notably the trash can, and more generally the desktop interaction.
Atari STThe Atari ST was a home/ personal computer system released by Atari in 1985. The "ST" allegedly stood for "Sixteen/Thirty-two" which referred to the Motorola 68000's 32-bit internals with 16-bit external buses. Other theories say that ST really stood for 68kThe Motorola 680x0 0x0 m68k or 68k family of CISC microprocessor CPU chips were 32-bit from the start, and were the primary competition for the Intel x86 family of chips. This family of chips built upon the 68h series of chips, which were their forebears.-based computers running GEM were sometimes called Jackintoshes as a consequence (see Jack TramielJack Tramiel (born 1928) is famous for founding Commodore International, manufacturer of the Commodore 64 and Commodore Amiga home computers. Tramiel was born in 1928 in Lodz, Poland, as Idek Trzmiel. After the Nazi invasion in 1939 his family was transpo).This resemblance later caused legal trouble to the manufacturer, Digital ResearchDigital Research, Inc. aka DR or DRI originally Intergalactic Digital Research was the company created by Dr. Gary Kildall to market and develop his CP/M operating system and related products. It was the first large software company in the microcomputer w, who was obliged to seriously cripple the desktop appearance and functionality of the product.
But GEM was not multitasking, so users had to close one program in order to run another one. Collections of related programs, like GEM Draw , had tricky File menu items like Close (to Edit) to facilitate switching. GEM was merely a GUI toolkit for applications rather than an integration environment like Windows.
An alternative multitasker released shortly before was DESQviewDESQview was a text mode multitasking program which enjoyed modest popularity in the late 1980s and early 1990s. Running on top of DOS, it allowed users to run multiple DOS programs concurrently in windows. DESQ Quarterdeck originally developed a task swi, a successor of IBMThis article is about the International Business Machines Corporation; see IBM (disambiguation) for other uses of this abbreviation. International Business Machines Corporation IBM or colloquially, Big Blue (incorporated June 15, 1911, in operation since's failed TopView from 1984. It did not have graphical capabilities initially, but was able to multitask DOS applications in windows.
Windows 1.0 was superseded in 1987 with the release of Windows 2.0.