Re: [pic] Nude from before 1980

Neil Franklin a *crit :
> 
> MiKe® <Pei...@lascaux.cave> writes:
> 
> > > And the pages were attached to each other,
> > > bottom of one page to the top of the next,
> > > so that the output was one long page.
> >
> > > The unix "banner" program was written to take advantage
> > > of the long continuous printouts from those old printers.
> >
> > But as continuous forms are still in use - so are
> > those *old* tractor feed printers .
> 
> Jup.
> 
> > english measure suggesting that we change instead
> > to hexadecimal because ALL computers run on hex .
> 
> Binary, as you say.
> 
> > At that time VIRTUALLY all mainframes, the few that
> > were around, had 4 bit processors and ran on octal - not hex ?
> 
> 4 bit processors??? The only use of them I know are pocket calculators
> and simple control systems (say traffic lights) up to 10 years ago.
> 
> Mainframes are either:
> - 36bit (IBM 709 series (1950/60s), DEC PDP-10 series (1960s/70s), GE 6xx
>   series (1960s up to today), ...) or
> - 32bit (IBM 360 series (late 1960s to today), DEC VAX series (late 1970s
>   to 1990s), ...).
> 
> And don't forget:
> 
> If you are not playing with 36 bits you have not got a full DEC.
> 
> > virtually ALL computers run on BINARY only .
> > We humans merely use HEX(8 bit) or OCTAL because they conform to
> 
> Hex is 4 bits and usually used on 32bit machines (8 characters/word):
> 
> 02 46 8A CE       = 00000010 01000110 10001010 11001110
> 13 57 9B DF       = 00010011 01010111 10011011 11011111
> 
> Octal is 3 bits and usually used on 36bit machines (12 characters/word):
> 
> 01 23 45 67 01 23 = 000001 010011 100101 110111 000001 010011
> 
> > Therefore, a very popular DIP (Dual Inline Package) was
> > a BCD converter that input Binary Code and output Decimal .
> 
> Or even full hex.
> 
> > My first computer was 32 bit long ago before others upgraded
> 
> I started with 8bit, an Z80 running at 4MHz (but using up 4 times as
> many clock states as todays processors, so it is equvalent to an 1MHz
> processor today would be). Today there is about 5 times that computer
> power in an TV remote control.
> 
> > now 128 bit computers are around
> 
> Where? The best I have seen (und I use such daily) are 64bit.
> 
> Note: I mean real 64bit vs 128bit architecture. Actual memory width
> these 64bit machines are 256bit, and even 32bit mainframes have up
> to 2048bit memory width.
> 
> --
> Neil Franklin, nei...@franklin.ch.remove http://neil.franklin.ch/
> Hacker, Unix Guru, El Eng FH/BSc, Sysadmin, Roleplayer, LARPer, Mystic

Thanks for the info - and corrections .
I mostly worked with programming -
very little with hardware . I know the
latest mainframe when I was in school was 48K std 
expandable to a whopping 64K max. Three 1/2 inch
tape drives - program, data in, data out , with
program in 16K max. chunks .
The only z80 I owned was a small Sinclair that could
scroll a full screen of color faster than the first
ibm i used . In programmin an RS MC-10 in msbasic1.0
using boolean values as multipliers made a calendar
program print a calendar as fast as I can do it today .
Pascal for a pc worked great using case statements and
poking data into the non-user registers of a TI59
printed fast.  PCs today with the greater capacity
run better and there is no concern for memory .
Lower level programming is what I like best, though ,
as I did when experimenting with the TI59 and the MC-10 .

MiKe®

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