i/o -> I/O

doc/scsh-manual/procnotation.tex

@@ -8,7 +8,7 @@ standard {\Scheme} code.
 The basic elements of this notation are \emph{process forms}, 
 \emph{extended process forms}, and \emph{redirections}.
 
-\section{Extended process forms and i/o redirections}
+\section{Extended process forms and I/O redirections}
 An \emph{extended process form} is a specification of a {\Unix} process to
 run, in a particular I/O environment:
         \codex{\var{epf} {\synteq} (\var{pf} $ \var{redir}_1$ {\ldots} $ \var{redir}_n $)}
@@ -35,7 +35,7 @@ So \ex{(> ,x)} means
 and \ex{(< /usr/shivers/.login)} means ``read from  \ex{/usr/shivers/.login}.''
 
 \pagebreak
-Here are two more examples of i/o redirection:
+Here are two more examples of I/O redirection:
 %
 \begin{center}
 \begin{codebox}
@@ -73,7 +73,7 @@ In this case,  it is an error if the port is not a file port
 (\eg, a string port).
 More complex redirections can be accomplished using the \ex{begin}
 process form, discussed below, which gives the programmer full control
-of i/o redirection from {\Scheme}.
+of I/O redirection from {\Scheme}.
 
 \subsection{Port and file descriptor sync}
 \begin{sloppypar}
@@ -95,7 +95,7 @@ that program would of course not see the {\Scheme} string port as its standard
 output.
 \end{sloppypar}
 
-To keep stdio synced with the values of {\Scheme}'s current i/o ports,
+To keep stdio synced with the values of {\Scheme}'s current I/O ports,
 use the special redirection \ex{stdports}.
 This causes 0, 1, 2 to be redirected from the current {\Scheme} standard ports.
 It is equivalent to the three redirections:
@@ -105,9 +105,9 @@ It is equivalent to the three redirections:
 (= 2 ,(error-output-port))\end{code}
 %
 The redirections are done in the indicated order.  This will cause an error if
-one of the current i/o ports isn't a {\Unix} port (\eg, if one is a string
+one of the current I/O ports isn't a {\Unix} port (\eg, if one is a string
 port).
-This {\Scheme}/{\Unix} i/o synchronisation can also be had in {\Scheme} code 
+This {\Scheme}/{\Unix} I/O synchronisation can also be had in {\Scheme} code 
 (as opposed to a redirection spec) with the \ex{(stdports->stdio)}
 procedure.
 
@@ -192,7 +192,7 @@ There are three basic {\Scheme} forms that use extended process forms:
 \begin{desc}
 \index{exec-epf} \index{\&} \index{run}
 The \ex{(exec-epf . \var{epf})} form nukes the current process: it establishes
-the i/o redirections and then overlays the current process with the requested
+the I/O redirections and then overlays the current process with the requested
 computation.
 
 The \ex{(\& . \var{epf})} form is similar, except that the process is forked
@@ -205,7 +205,7 @@ and returns its exit status.
 These special forms are macros that expand into the equivalent
 series of system calls.
 The definition of the \ex{exec-epf} macro is non-trivial, 
-as it produces the code to handle i/o redirections and set up pipelines.
+as it produces the code to handle I/O redirections and set up pipelines.
 However, the definitions of the \cd{&} and \ex{run} macros are very simple:
 \begin{leftinset}
 \begin{tabular}{@{}l@{\quad$\equiv$\quad}l@{}}
@@ -426,7 +426,7 @@ might produce the list
 
 What is the deadlock hazard that causes \ex{run/collecting} to use temp files?
 Processes with multiple output streams can lock up if they use pipes
-to communicate with {\Scheme} i/o readers. For example, suppose
+to communicate with {\Scheme} I/O readers. For example, suppose
 some {\Unix} program \ex{myprog} does the following:
 \begin{enumerate}
     \item  First, outputs a single ``\ex{(}'' to stderr.

doc/scsh-manual/syscalls.tex

@@ -132,7 +132,7 @@ This can be overridden if the programmer wishes.
 \section{I/O}
 
 \subsection{Standard {\RnRS} I/O procedures}
-In scsh, most standard {\RnRS} i/o operations (such as \ex{display} or
+In scsh, most standard {\RnRS} I/O operations (such as \ex{display} or
 \ex{read-char}) work on both integer file descriptors and {\Scheme} ports.
 When doing I/O with a file descriptor, the I/O operation is done
 directly on the file, bypassing any buffered data that may have

doc/scsh-manual/tty.tex

@@ -9,7 +9,7 @@
 
 Scsh provides a complete set of routines for manipulating terminal
 devices---putting them in ``raw'' mode, changing and querying their
-special characters, modifying their i/o speeds, and so forth.
+special characters, modifying their I/O speeds, and so forth.
 The scsh interface is designed both for generality and portability
 across different Unix platforms, so you don't have to rewrite your
 program each time you move to a new system.