The document summarizes the history and flow of computers from 1988-1989. It describes the input, storage, processing, and output of data on early computers. It notes key facts such as there being 45 million PC users in the United States around 1988. Liquid crystals were discovered and are now used in LCD screens. Apple filed a copyright lawsuit against Microsoft in 1988. The IBM AS/400 midrange computer was introduced in 1988. Fred Cohen received an award and the Orange Book was released in 1989.