Application Architecture Evolution Three distinct era's of application architecture mainframe(1960's and 70's) personal computer era(1980's) We era(1990's onwards) Terminals Desktop PCs Web browsers Application Application Program Program Propietary Network or dial up phone lines Local Area Network Internet Mainframe Computer Web Application Server Database Database (a)Mainframe Era (b)Personal Computer Era (c)Web era Database System Concepts-6th Edition 9.4 @Silberschatz,Korth and SudarshanDatabase System Concepts - 6 9.4 ©Silberschatz, Korth and Sudarshan th Edition Application Architecture Evolution Three distinct era’s of application architecture mainframe (1960’s and 70’s) personal computer era (1980’s) We era (1990’s onwards)