Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!sol.ctr.columbia.edu!lll-winken!aunro!ugc!geoff From: geoff@ugc.uucp (Geoff Coleman) Newsgroups: comp.unix.aix Subject: Re: Kbytes: Real memory vs. Hard disk space Message-ID: <1991Jun21.145117.18514@ugc.uucp> Date: 21 Jun 91 14:51:17 GMT References: <1991Jun20.122420.10372@uvm.edu> <862@rufus.UUCP> Organization: UGC Consulting Ltd., Edmonton Alberta Lines: 19 In article <862@rufus.UUCP> drake@drake.almaden.ibm.com writes: >Each announcement letter for a RISC System/6000 product contains the >following comment: > > NOTE: MB is 1,048,576 bytes (two to the twentieth power) when > referring to memory; in all other cases it is 1,000,000 (ten to the > sixth power). > GB is 1,073,741,824 bytes (two to the thirtieth power) when > referring to memory; in all other cases it is 1,000,000,000 (ten to > the ninth power). So nice of IBM to use a couple of different definitions for the same term. I guess it makes their disks look larger to the unknowing. What I find really amusing is that du and df don't add up because du appears to return number of blocks in 1024 byte blocks not in 1000 byte blocks. Geoff Coleman