diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index d794893..e4dc24b 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -29935,18 +29935,19 @@ where:
 
 @table @samp
 @item @var{address}
-An expression specifying the address of the first memory word to be
+An expression specifying the address of the first memory byte to be
 read.  Complex expressions containing embedded white space should be
 quoted using the C convention.
 
 @item @var{count}
-The number of bytes to read.  This should be an integer literal.
+The number of target memory bytes to read.  This should be an integer
+literal.
 
 @item @var{byte-offset}
-The offsets in bytes relative to @var{address} at which to start
-reading.  This should be an integer literal.  This option is provided
-so that a frontend is not required to first evaluate address and then
-perform address arithmetics itself.
+The offset in target memory bytes relative to @var{address} at which to
+start reading.  This should be an integer literal.  This option is
+provided so that a frontend is not required to first evaluate address
+and then perform address arithmetics itself.
 
 @end table
 
@@ -29979,8 +29980,9 @@ The start address of the memory block, as hexadecimal literal.
 The end address of the memory block, as hexadecimal literal.
 
 @item offset
-The offset of the memory block, as hexadecimal literal, relative to
-the start address passed to @code{-data-read-memory-bytes}.
+The offset of the memory block in target memory bytes, as hexadecimal
+literal, relative to the start address passed to
+@code{-data-read-memory-bytes}.
 
 @item contents
 The contents of the memory block, in hex.
@@ -30020,17 +30022,18 @@ where:
 
 @table @samp
 @item @var{address}
-An expression specifying the address of the first memory word to be
+An expression specifying the address of the first memory byte to be
 written.  Complex expressions containing embedded white space should be
 quoted using the C convention.
 
 @item @var{contents}
-The hex-encoded bytes to write.
+The hex-encoded bytes to write.  It is an error if @var{contents} does
+not represent an integral number of target memory bytes.
 
 @item @var{count}
-Optional argument indicating the number of bytes to be written.  If @var{count} 
-is greater than @var{contents}' length, @value{GDBN} will repeatedly 
-write @var{contents} until it fills @var{count} bytes.
+Optional argument indicating the number of target bytes to be written.
+If @var{count} is greater than @var{contents}' length, @value{GDBN} will
+repeatedly write @var{contents} until it fills @var{count} bytes.
 
 @end table
 
@@ -34665,7 +34668,7 @@ probes the target state as if a new connection was opened
 
 @item m @var{addr},@var{length}
 @cindex @samp{m} packet
-Read @var{length} bytes of memory starting at address @var{addr}.
+Read @var{length} octets of memory starting at address @var{addr}.
 Note that @var{addr} may not be aligned to any particular boundary.
 
 The stub need not use any particular size or alignment when gathering
@@ -34680,8 +34683,8 @@ suitable for accessing memory-mapped I/O devices.
 Reply:
 @table @samp
 @item @var{XX@dots{}}
-Memory contents; each byte is transmitted as a two-digit hexadecimal
-number.  The reply may contain fewer bytes than requested if the
+Memory contents; each octet is transmitted as a two-digit hexadecimal
+number.  The reply may contain fewer octets than requested if the
 server was able to read only part of the region of memory.
 @item E @var{NN}
 @var{NN} is errno
@@ -34689,8 +34692,8 @@ server was able to read only part of the region of memory.
 
 @item M @var{addr},@var{length}:@var{XX@dots{}}
 @cindex @samp{M} packet
-Write @var{length} bytes of memory starting at address @var{addr}.
-The data is given by @var{XX@dots{}}; each byte is transmitted as a two-digit
+Write @var{length} octets of memory starting at address @var{addr}.
+The data is given by @var{XX@dots{}}; each octet is transmitted as a two-digit
 hexadecimal number.
 
 Reply:
@@ -35005,7 +35008,7 @@ for success (@pxref{Stop Reply Packets})
 @anchor{X packet}
 @cindex @samp{X} packet
 Write data to memory, where the data is transmitted in binary.
-Memory is specified by its address @var{addr} and number of bytes @var{length};
+Memory is specified by its address @var{addr} and number of octets @var{length};
 @samp{@var{XX}@dots{}} is binary data (@pxref{Binary Data}).
 
 Reply:
diff --git a/gdb/doc/python.texi b/gdb/doc/python.texi
index 098d718..b31bce0 100644
--- a/gdb/doc/python.texi
+++ b/gdb/doc/python.texi
@@ -2718,7 +2718,7 @@ return an empty tuple.
 
 @findex Inferior.read_memory
 @defun Inferior.read_memory (address, length)
-Read @var{length} bytes of memory from the inferior, starting at
+Read @var{length} target bytes of memory from the inferior, starting at
 @var{address}.  Returns a buffer object, which behaves much like an array
 or a string.  It can be modified and given to the
 @code{Inferior.write_memory} function.  In @code{Python} 3, the return
@@ -2731,7 +2731,8 @@ Write the contents of @var{buffer} to the inferior, starting at
 @var{address}.  The @var{buffer} parameter must be a Python object
 which supports the buffer protocol, i.e., a string, an array or the
 object returned from @code{Inferior.read_memory}.  If given, @var{length}
-determines the number of bytes from @var{buffer} to be written.
+determines the number of target memory bytes from @var{buffer} to be
+written.
 @end defun
 
 @findex gdb.search_memory
