ocr: DOS 16-biWindows Win32 057 Pisix Client Applicolion Applicntion ppa alBa Applicotion Application Processes 132 05/2 Poorx Server Smasystem SODSYOT Suesyston Processes USER MODE KERNEL MODE NTSystem Services Kemel Hordwore Abstrodion Layer FIGURE 1 of The the Windows message NT flows, operating system is based on a client/server model. The arrows depict some