帮忙做一下句型分析In 1980, IBM invited Microsoft to write a series of

帮忙做一下句型分析
In 1980, IBM invited Microsoft to write a series of programming languages for its new personal computer, the IBM PC. Gates offered that Microsoft could also produce the operating systems (MS-DOS). The IBM PC and MSDOS wer bundled together and announced to the public in August 1981.Throughout the 1980s Microsoft moved steadily upward and by the 1990s MS-DOS had been exported around the world and had become the dominant software platform. By 1995, roughly 85 percent of the world's personal computers were using a Microsoft operating system.
就是一段话一句一句分析下句型就好。