谁能帮忙用英语五句话左右介绍一下dell公司

不知道你要介绍哪方面啊，5句话也不够介绍。
你上dell的英文网站，找about us等相关介绍的页面参考下就行了。

The headquarters establishes in the Ao Si wear of Ting Er company of Texas in 1984 from exceed a gram of Er to wear an Er foundation.BE IT product and service that the world lead to provide a company, its business includes a help customer to build up own information technique and Internet foundation structure.Bring the consumer the lately related technique, and far far quick slow-moving at those operations, adopt a company of retail the mode.The total sales amount attains USD 52,800,000,000.