面向个人计算机软件的研究，开发及销售。
Research, development and sales of software for personal computers.
个人计算机软件建立于特定的操作系统和计算机。
Personal computer software is based on specific operating systems and machines.
微软公司：美国计算机公司，是个人计算机软件系统与应用的主要研发公司。
Microsoft Corp. : U. s. computer firm, the leading developer of personal-computer software systems and applications.
应用推荐