instability in Berkeley versus AT&T releases

[jsq at im4u.UUCP]

Some of you may be amused by running the following figure through pic
and ditroff (after extracting it with sh).  I make no claims as to its
accuracy or completeness.

(By the way, I've added "Followup-To: net.unix" to the header lines.)

: This is a shar archive.  Extract with sh, not csh.
echo x - history.pic
sed -e 's/^X//' > history.pic << '!RoNnIe!RaYgUn!'
X.\" pic -Pip history.pic | ditroff -Pip
X.ps -2
X.PS
Xsmallb = 0.5i
Xmedb = 0.75i
Xbigb = 1i
Xbiggerb = 1.5i
Xboxwid = smallb
Xboxht = smallb / 2
Xmovewid = 0.5i
X
Xspacing=0.5i
Xsysv=spacing
Xmert=sysv + spacing
Xpwb=mert + spacing
Xcbunix= pwb + spacing
Xresearch=cbunix + spacing
Xv32=research + spacing
Xbsd4=research + (2 * spacing)
Xbsd2=bsd4 + spacing
X
Xboxwid = medb
XD69: box invis "1969"
XD73: box invis "1973"
Xboxwid = smallb
XD76: box invis "1976"; move
XD77: box invis "1977"; move
XD78: box invis "1978"; move
XD79: box invis "1979"; move
XD80: box invis "1980"; move
XD81: box invis "1981"; move
XD82: box invis "1982"; move
XD83: box invis "1983"; move
XD84: box invis "1984"; move
XD85: box invis "1985"
XLabel: box invis at D69
X
Xboxwid = smallb
XV1: box invis "V1" at D69 + (0, research)
XV5: box invis "V5" at D73 + (0, research)
XV6: box invis "V6" at D76 + (0, research)
Xboxwid = bigb
XV7: box "Version 7" at D78 + (0, research)
Xarrow from V1.e to V5.w
Xarrow from V5.e to V6.w
Xarrow from V6.e to V7.w
X
Xboxwid = smallb
XV32: box invis "32V" at 1/4 <D78, D79> + (0, v32)
Xboxwid = bigb
XV8: box "Version 8" at D83 + (0, v32)
Xarrow from V7.n to V32.s
Xarrow from V32.e to V8.w
Xarrow right from V8.e
X
X"\fIBell Research\fP" ljust at Label + (0, research + (v32 - research) / 2)
X
Xboxwid = smallb
XPWB: box invis "PWB" at 1/2 <V6, V7> + (0, pwb - research)
Xarrow from V6.s to PWB.nw
XU30: box invis "3.0" at 1/2 <D79, D80> + (0, pwb)
Xarrow from V32.se to 4/5 <PWB, U30>
Xarrow from V7.sw to 1/2 <PWB, U30>
XU40: box invis "4.0.1" at D81 + (0, pwb)
XU301: box invis "3.0.1" at 1/2 <U30, U40>
XU50: box invis "5.0" at D82 + (0, pwb)
XU52: box invis "5.2" at D83 + (0, pwb)
XU524: box invis "5.2.4" at D84 + (0, pwb)
Xarrow from PWB.e to U30.w
Xarrow from U30.e to U301.w
Xarrow from U301.e to U40.w
Xarrow from U40.e to U50.w
Xarrow from U50.e to U52.w
Xarrow from U52.e to U524.w
Xarrow right from U524.e
X
Xboxwid = bigb
XCBUNIX: box invis "CB UNIX" at PWB + (0, cbunix - pwb)
Xarrow from 1/4 <V6, V7> to CBUNIX.n
Xspline -> from CBUNIX.e to U301 + (0, cbunix - pwb) then to 1/2 <U301, U40>
X
X"\fIBell Columbus\fP" ljust at Label + (0, cbunix)
X
Xboxwid = medb
XMERT: box invis "MERT" at PWB + (0, mert - pwb)
Xboxwid = bigb
XUNIXRT: box invis "UNIX/RT" at D78 + (0, mert)
Xarrow from V6.s to MERT.nw
Xarrow from MERT.e to UNIXRT.w
Xarrow from UNIXRT.ne to 3/4 <PWB, U30>
X
Xboxwid = bigb
XSysIII: box "System III" at D82 + (0, sysv)
XSysV: box invis "System V" at D83 + (0, sysv)
Xoldht = boxht
Xboxht = oldht * 2
XSysV2: box "System V" "Release 2" at D84 + (0, sysv)
Xboxht = oldht * 3
XSysV24: box dotted "System V" "Release 2" "Version 4" at D85 + (0, sysv)
Xboxht = oldht
Xarrow from U301.se to SysIII.n
Xarrow from U50.se to SysV.n
Xarrow from U52.se to SysV2.n
Xarrow from U524.se to SysV24.n
X
X"\fIUSG / USDL\fP" ljust at Label + (0, sysv + (pwb - sysv)/2)
X
Xboxwid = smallb
XBSD3: box invis "3BSD" at 1/2 <D78, D79> + (0, bsd4)
Xarrow from V32.n to BSD3.s
Xboxwid = medb
XBSD40: box invis "4.0BSD" at 1/2 <D79, D80> + (0, bsd4)
XBSD41: box "4.1BSD" at 1/2 <D80, D81> + (0, bsd4)
XBSD42: box "4.2BSD" at 1/2 <D83, D84> + (0, bsd4)
XBSD41A: box invis "\s-14.1aBSD\s0" at 1/3 <BSD41, BSD42>
XBSD41C: box invis "\s-14.1cBSD\s0" at 2/3 <BSD41, BSD42>
XBSD43: box dotted "4.3BSD" at 1/2 <D84, D85> + (0, bsd4)
Xarrow from BSD3.e to BSD40.w
Xarrow from BSD40.e to BSD41.w
Xarrow from BSD41.e to BSD41A.w
Xarrow from BSD41A.e to BSD41C.w
Xarrow from BSD41C.e to BSD42.w
Xarrow from BSD42.e to BSD43.w
Xarrow right from BSD43.e
X
Xarrow from 1/5 <V32, V8> to BSD41.sw
X
Xboxwid = smallb
XBSD1: box invis "1BSD" at 1/2 <V6, V7> + (0, bsd2 - research)
XBSD2: box invis "2BSD" at V7 + (0, bsd2 - research)
Xboxwid = medb
XBSD28: box invis "2.8BSD" at D82 + (0, bsd2)
XBSD29: box invis "2.9BSD" at D83 + (0, bsd2)
Xarrow from V6.n to BSD1.s
Xarrow from BSD1.e to BSD2.w
Xarrow from BSD2.e to BSD28.w
Xarrow from BSD28.e to BSD29.w
Xarrow right from BSD29.e
X
Xarrow from BSD2.s to BSD3.n
Xarrow from BSD41.ne to BSD28.sw
Xarrow from 1/2 <BSD41A, BSD41C> to BSD29.sw
X
X"\fIBerkeley\fP" ljust at Label + (0, bsd4 + (bsd2 - bsd4)/2)
X
Xarrow from BSD41.se to 3/4 <V32, V8>
Xarrow from BSD41.s to U50.n
X
Xboxwid = medb
Xbox dashed "PDP-11" at BSD1 + (-1, 0)
Xboxwid = smallb
Xbox dashed "VAX" at 1/2 <V32, BSD3> + (-1, 0)
Xboxwid = medb
Xbox dashed "PDP-11" at PWB.w + (-1, 0)
Xboxwid = biggerb
Xbox dashed "PDP-11 / VAX" with .ne at 1/2 <U30, SysIII>
X
X.PE
X.ps +2
!RoNnIe!RaYgUn!
exit
-- 
John Quarterman,   UUCP:  {ihnp4,seismo,harvard,gatech}!ut-sally!jsq
ARPA Internet and CSNET:  jsq at ut-sally.ARPA, soon to be jsq at sally.UTEXAS.EDU