[MEncoder-users] Using SI units in mencoder

Trent Piepho xyzzy at speakeasy.org
Wed Feb 9 15:27:17 CET 2005


On Wed, 9 Feb 2005, asym wrote:
> At 06:40 2/9/2005, Trent Piepho wrote:
> >On Wed, 9 Feb 2005, asym wrote:
> > > The is just so much BS.  The use of kilobyte to mean 10^3 bytes was around
> > > long long long before software developers and self righteous technophiles
> >
> >Really?  The datasheet for the 4004 microprocessor,
> >http://www.piercefuller.com/collect/i4004/, from 1971 uses K to mean 1024 when
> >referring to numbers of bytes or bits.  Do you have a reference to kilobytes
> >meaning 1000 bytes that predates that?
> 
> Try every storage device or mainframe from IBM produced in the roughly 15 
> years prior to the 4004.  All of these, like the RAMAC (~1956), Ramkit, etc 
> predate the microprocessor, not just the 4004.  All of them listed 

Really?  Here is the manual for the IBM 32K Assembler for the System/360, from
1966:

http://www.bitsavers.org/pdf/ibm/360/Y26-3598-0_32k_asmPLM_1966.pdf

	"The Assember operates ... on System/360 Models ... with at least
	32,768 bytes of main storage."

Here 32K quite clearly means 32 * 2^10 bytes.

While I've seen the RAMAC described as having a storage capacity of 5 million
7 bit characters, I've not seen anything from that era referring to this as "5
megabytes".  Can you find actual text from the 50s where kilobytes are 1000
bytes?




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