Since the 1980’s, PC’s and UNIX machines were supposed to have taken over the computing world, relegating mainframes to the scrap heap alongside rotary-dial telephones, suitcase-size boom boxes, and Plymouth Reliants. Indeed, most mainframes from that era have been consigned to the scrap heap – only to be replaced by bigger and faster mainframes.
Today the number of mainframes is estimated to be 10,000. Since 2000, the processing power of mainframes has quadrupled in terms of MIPS. According to IBM, the top 25 world banks run mainframes, 80% of the world’s corporate data resides or originates on mainframes, and 71% of global Fortune 500 companies are mainframe clients.
And what about those applications that were supposed to have been migrated off mainframes?
Read full article at Datamation