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原帖由 kexu79 于 2006-7-27 23:23 发表
LZ大人，我发现你好像在撒谎哦~~~~~~~~~~~~88年有DOS3.33吗？。。。而且不是PC—DOS，还是MS—DOS。。。。。有吗？想清楚再回答哦。。。。。
记错了........... 难道是 3.3 不是 3.33...........?
查了一查..............
http://en.wikipedia.org/wiki/DOS
Timeline
Microsoft bought non-exclusive rights for marketing QDOS on December 1980. On July 1981, Microsoft bought exclusive rights for 86-DOS, which was the next version of QDOS.
The first pre-release version, PC-DOS 1.0, had been finished in 1981. It supported up to 16Kb of RAM and use of a 160Kb 5.25" floppy disk.
In August 1982, the first version of DOS was released. It was called PC-DOS 1.1.
The first version which supported the PC/XT and fixed disk drives (commonly referred to as hard disk drives), PC-DOS 2.0 and MS-DOS 2.0, had been released in March 1983.
At the same time, Microsoft announced its intention to create a GUI for DOS. Its first version, Windows 1.0, had been announced on November 1983, but was unfinished and did not interest IBM. By November 1985, the first finished version, Microsoft Windows 1.01, had been released.
MS-DOS 3.0, released in September 1984, first supported 1.2Mb floppy disks and 32Mb hard disks. MS-DOS 3.1, released November that year, first supported networking.
MS-DOS 3.2, released in April 1986, was the first retail release of MS-DOS. It added support of 720K 3.5" floppy disks. Previous versions had been sold to computer manufacturers, who pre-loaded them on their computers. This is because operating systems were considered part of a computer, not an independent product.
MS-DOS 3.3, released in April 1987, featured logical disks. A physical disk could be divided into several partitions which are considered as independent disks by the operating system. Support was also added for 1.44Mb 3.5" floppy disks.
MS-DOS 4.0, released in July 1988, supported disks up to 2GB (note that typical disk sizes were typically 40-60Mb in 1988), and added a full-screen shell called DOSSHELL. Similar or better shells, like Norton Commander and PCShell, already existed in the market. This release had been considered very buggy. On November 1988, Microsoft addressed many bugs in a service release, MS-DOS 4.01.
MS-DOS 5.0, released in April 1991, included the full-screen BASIC interpreter QBasic, which also provided a full-screen text editor (previously, MS-DOS had only line-based text editor), disk cache utility, undelete capabilities, and other improvements. It had severe problems with some disk utilities, fixed later in that year. The fixed version had been called MS-DOS 5.01.
In March 1992, Microsoft released Windows 3.1, which became the first popular version of Microsoft Windows. More than 1,000,000 users bought it, so Microsoft finally succeeded at its task to write a good (or, at least, popular) graphical interface for DOS.
On March 1993, MS-DOS 6.0 had been released. Following competition from Digital Research, Microsoft added a disk compression utility called DoubleSpace. At that time, typical hard disk sizes were about 200-400Mb, and many users badly needed more disk space. MS-DOS 6.0 also featured the disk defragmenter DEFRAG, backup program MSBACKUP, memory optimization with MEMMAKER, and rudimentary virus protection via MSAV.
As with versions 4.0 and 5.0, MS-DOS 6.0 turned out to be buggy. Due to complaints about loss of data, on November 1993 Microsoft improved their DoubleSpace utility, and called the new version 6.2. In this version, they also improved other utilities, and introduced a new disk check utility, SCANDISK, similar to fsck from Unix.
The next version of MS-DOS, 6.21 (released March 1994), appeared due to legal problems. Stac Electronics sued Microsoft and forced it to remove DoubleSpace from their operating system. Otherwise, 6.21 was no different from 6.2.
Microsoft licensed another disk compression package, DoubleSpace, from VertiSoft Systems. This package, renamed DriveSpace, had been included in MS-DOS 6.22, which was released in May 1994. There were no other differences between MS-DOS 6.22 and 6.2.
MS-DOS 6.22 was the last stand-alone version of MS-DOS available to the general public. MS-DOS was removed from marketing by Microsoft on November 30, 2001. See the Microsoft Licensing Roadmap.
Microsoft also released versions 6.23 to 6.25 for banks and American military organizations. These versions introduced FAT32 support. Since then, MS-DOS exists only as a part of Microsoft Windows versions based upon Windows 95 (e.g., Windows 98, Windows Me). The version of MS-DOS included with the original release of Microsoft Windows 95 is numbered 7.0. |
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楼主: 70869413
发表于 2006-7-28 12:53:34
