fix spelling

Author: Vladimir Kotal

history.tex

@@ -1,7 +1,7 @@
 
 changequote([[[, ]]])
 
-\pdfbookmark[1]{UNIX history}{unixhist}
+\pdfbookmark[1]{UNIX history}{UNIX history}
 
 \begin{slide}
 \sltitle{Books on UNIX history}
@@ -51,7 +51,7 @@
 Honeywell including the Multics project, that was further developed under its
 patronage (virtual memory, multiprocessors, \dots) till 1985.
 The last Multics installation worked in the Canadian Department of National
-Defense and the system was used actively for example during the Persion gulf
+Defense and the system was used actively for example during the Persian gulf
 war. Definitive shutdown was made 31st October 2000. More information can be
 found on \url{http://www.multicians.org}.
 \item Before the work on the development environment for PDP-7 started, Thmopson
@@ -168,9 +168,9 @@
 \item UNIX V3 = \emph{UNIX version 3}, UNIX V.4 = \emph{system 5 release 4}
 etc., e.g. UNIX V3 != SVR3.
 \item UNIX System III is therefore not UNIX V3; in those days (late 70's) there
-were multiple groups in BTL that contributed to the UNIX development. Vx
-versions were developed in \emph{Computer Research Group}, other groups were
-\emph{Unix System Group} (USG), \emph{Programmer's WorkBench} (PWB).
+were multiple groups in BTL that contributed to the UNIX development.
+The ``Vx'' versions were developed in \emph{Computer Research Group}, other
+groups were \emph{Unix System Group} (USG), \emph{Programmer's WorkBench} (PWB).
 Another branch of UNIX was Columbus UNIX also in BT. The System III version is
 based on these early versions.
 \item UNIX has forked into two main branches: AT\&T and BSD, individual
@@ -195,7 +195,7 @@
 in 1981 as a result.
 \item 4.1BSD should have been originally 5BSD, however after AT\&T raised
 concerns that its customer could confuse 5BSD with System~V, BSD transitioned to
-the 4.xBSD versioning scheme. It was common that rather write its own code, the
+the 4.x BSD versioning scheme. It was common that rather write its own code, the
 Berkeley developers looked around first for what is already done. In this way
 BSD took virtual memory from Mach or NFS-compatible code developed on one
 Canadian university.
@@ -206,7 +206,7 @@
 %licensing policy. The Berkeley licensing policy was very liberal compared to
 %the one of AT\&T.
 \item The hardware manufacturers were shipping UNIX variants for their own
-computers and commercionalization made the situation worse w.r.t.
+computers and commercialization made the situation worse w.r.t.
 diversification of this system.
 \item In the 80's the first effort for standardization came into existence.
 Standard specifies how the system should behave externally (for user, programmer
@@ -215,7 +215,7 @@
 however upon closer look there were different in many important properties.
 For example System~V and BSD differed in filesystem, network architecture and
 virtual memory architecture.
-\item When in 1987 the AT\&T and Sun microsystems companies (whose then SunOS
+\item When in 1987 the AT\&T and Sun Microsystems companies (whose then SunOS
 was based on BSD) joined their effort to develop single system that would
 contain the best of each, next to enthusiastic responses it also prompted fear
 between many other unix system manufacturers that were afraid that it would mean
@@ -224,7 +224,7 @@
 between others Hewlett-Packard, IBM a Digital. This system OSF/1 that arose from
 this partnership was not very successful and it was shipped only by Digital that
 renamed it to Digital UNIX. It is interesting to note that the system was based
-on the Mach microkernel. After the aquisition of Digital by Compaq it was
+on the Mach microkernel. After the acquisition of Digital by Compaq it was
 renamed to Tru64 and supported by Hewlett-Packard, that was merged with
 Compaq in 2002. In the mean time AT\&T and Sun responded by founding UNIX
 International. This period of 80's and 90's is called \emsl{Unix Wars} -- the

unix_dict.txt

@@ -683,3 +683,8 @@ nodelen
 servicename
 socketlen
 servicelen
+PDPs
+MULTIplexed
+Libes
+Ressler
+multiuser