Update readme to say computers

This avoid saying "systems" too many times in a row.

diff --git a/readme.md b/readme.md
index c9b20022af5ee4df78007e05aad8f016cd509be8..564a0043f93619e37edf9af8fff8bbf028a7bacd 100644 (file)
--- a/readme.md
+++ b/readme.md
@@ -8,7 +8,7 @@ covered the period of July 1970 to July 1971 although some have
 claimed as early as 1969 but provide no sources.
 
 MIT-DM (along with other historically important systems like AI, MC, 
 claimed as early as 1969 but provide no sources.
 
 MIT-DM (along with other historically important systems like AI, MC, 

-and ML) were a group of PDP-10 systems running the Incompatible 
+and ML) were a group of PDP-10 computers running the Incompatible 

 Timesharing System (ITS.) This mudman.git repository is named after 
 the MUDMAN directory on DM, which contained documentation about 
 Muddle.
 Timesharing System (ITS.) This mudman.git repository is named after 
 the MUDMAN directory on DM, which contained documentation about 
 Muddle.