mct@praxis.co.uk (Martyn Thomas) (11/16/90)
Every five years, your dollar buys about 10-times as many MIPS, if you look at factory-gate microprocessor prices. Has anyone got historic ratios for the improvement in price/performance for IBM or any other large processor manufacturer? I need them for a lecture on Nov 21st. Thanks -- Martyn Thomas, Praxis plc, 20 Manvers Street, Bath BA1 1PX UK. Tel: +44-225-444700. Email: mct@praxis.co.uk
herrickd@iccgcc.decnet.ab.com (11/20/90)
In article <5517@newton.praxis.co.uk>, mct@praxis.co.uk (Martyn Thomas) writes: > Every five years, your dollar buys about 10-times as many MIPS, if you look > at factory-gate microprocessor prices. > > Has anyone got historic ratios for the improvement in price/performance for > IBM or any other large processor manufacturer? > > I need them for a lecture on Nov 21st. > > Thanks > -- > Martyn Thomas, Praxis plc, 20 Manvers Street, Bath BA1 1PX UK. > Tel: +44-225-444700. Email: mct@praxis.co.uk Back before 1976 Herb Grosch was a columnist in Computerworld, a weekly news rag aimed at MIS people. He would occasionally write about Grosch's Law, which was a formula for such things. The formula had quite good predictive value for a long time. Methinks I remember reading someone's comments on the current applicability of Grosch's Law in an IEEE or ACM publication within the last two or three years. dan herrick herrickd@astro.pc.ab.com