diff --git a/Doc/Contrib/Microsoft NASCOM BASIC.docx b/Doc/Contrib/Microsoft NASCOM BASIC.docx
new file mode 100644
index 00000000..b260b59e
Binary files /dev/null and b/Doc/Contrib/Microsoft NASCOM BASIC.docx differ
diff --git a/Doc/Nascom.txt b/Doc/Nascom.txt
deleted file mode 100644
index 5455ab1c..00000000
--- a/Doc/Nascom.txt
+++ /dev/null
@@ -1,146 +0,0 @@
-NASCOM 2 BASIC (C) 1978 MICROSOFT AS IMPLEMENTED FOR RETROBREWCOMPUTERS
-
-FUNCTIONS:
-
-SGN
-INT
-ABS
-USR
-FRE
-INP
-POS
-SQR
-RND
-LOG
-EXP
-COS
-SIN
-TAN
-ATN
-PEEK
-DEEK
-POINT
-LEN
-STR
-VAL
-ASC
-CHR$
-HEX$
-BIN$
-LEFT$
-RIGHT$
-MID$
-
-RESERVED WORDS:
-
-END
-FOR
-NEXT
-DATA
-INPUT
-DIM
-READ
-LET
-GOTO
-RUN
-IF
-RESTORE
-GOSUB
-RETURN
-REM
-STOP
-OUT
-ON
-NULL
-WAIT
-DEF
-POKE
-DOKE
-LINES
-CLS
-WIDTH
-BYE
-SET
-RESET
-PRINT
-CONT
-LIST
-CLEAR
-PLAY
-REM
-NEW
-PRINT
-TAB
-TO
-FN
-SPC
-THEN
-NOT
-STEP
-?
-
-OPERATORS:
-
-+	PLUS
--	MINUS
-*	MULTIPLY
-/	DIVIDE
-AND	LOGICAL AND
-OR	LOGICAL OR
->	GREATER THAN
-=	EQUALS
-<	LESS THAN
-^	POWER
-
-EXPRESSION PRECEDENCE:
-
-()	EXPRESSIONS IN ()
-^	POWER
--	NEGATION
-* /	MULTIPLICATION AND DIVISION
-+ -	ADDITION AND SUBTRACTION
-=	EQUALS
-<>	NOT EQUAL
-<	LESS THAN
->	GREATER THAN
-<= =<	LESS THAN OR EQUAL TO
->= =>	GREATER THAN OR EQUAL TO
-NOT	LOGICAL, BITWISE NEGATION
-AND	LOGICAL, BITWISE AND
-OR	LOGICAL, BITWISE OR
-
-VARIABLES:
-
-	NO LENGTH LIMIT BUT ONLY FIRST TWO CHARACTERS ARE SIGNIFICANT.
-	CANNOT HAVE THE SAME NAME AS RESERVED WORDS.
-	MAY BE AN ARRAY.
-
-ERROR CODE:
-
-NF	NEXT without FOR
-SN	Syntax error
-RG	RETURN without GOSUB
-OD	Out of DATA
-FC	Illegal function call
-OV	Overflow error
-OM	Out of memory
-UL	Undefined line
-BS	Bad subscript
-DD	Re-DIMensioned array
-/0	Division by zero
-ID	Illegal direct
-TM	Type mis-match
-OS	Out of string space
-LS	String too long
-ST	String formula too complex
-CN	Can't CONTinue
-UF	Undefined FN function
-MO	Missing operand
-HX	HEX error
-BN	BIN error
-
-LINE EDITING COMMANDS:
-
-@	KILL CURRENT LINE
-_	NONDESTRUCTIVE DELETE LAST CHARACTER
-
diff --git a/Source/HBIOS/nascom.asm b/Source/HBIOS/nascom.asm
index 4cc8f66d..561354d5 100644
--- a/Source/HBIOS/nascom.asm
+++ b/Source/HBIOS/nascom.asm
@@ -481,7 +481,7 @@ ERRORS:	.BYTE   "NF"            ; NEXT without FOR
 	.BYTE   "DD"            ; Re-DIMensioned array
 	.BYTE   "/0"            ; Division by zero
 	.BYTE   "ID"            ; Illegal direct
-	.BYTE   "TM"            ; Type mis-match
+	.BYTE   "TM"            ; Type mismatch
 	.BYTE   "OS"            ; Out of string space
 	.BYTE   "LS"            ; String too long
 	.BYTE   "ST"            ; String formula too complex
@@ -503,7 +503,7 @@ ERRORS: .BYTE   "NEXT without FOR",0
         .BYTE   "Re-DIMensioned array",0
         .BYTE   "Division by zero",0
         .BYTE   "Illegal direct",0
-        .BYTE   "Type mis-match",0
+        .BYTE   "Type mismatch",0
         .BYTE   "Out of string space",0
         .BYTE   "String too long",0
         .BYTE   "String formula too complex",0