diff --git a/a/Assembler 6502c64.asm b/a/Assembler 6502c64.asm
index 16d4b927..3145c337 100644
--- a/a/Assembler 6502c64.asm	
+++ b/a/Assembler 6502c64.asm	
@@ -7,5 +7,5 @@ in:
 lda hello,y
 bne loop
 rts
-hello: .tx "Hello World!"
+hello: .tx "Hello World"
        .by 13,10,0
diff --git a/a/Assembler 6809vectrex.asm b/a/Assembler 6809vectrex.asm
index 5f3f52f5..4a51dab7 100644
--- a/a/Assembler 6809vectrex.asm	
+++ b/a/Assembler 6809vectrex.asm	
@@ -29,5 +29,5 @@ loop:
 
 ; Text data ($80 - end of line)
 
-helloworld:     db      'HELLO WORLD!',$80
+helloworld:     db      'Hello World',$80
 
diff --git a/a/Assembler Bootsect.asm b/a/Assembler Bootsect.asm
index 6ac3cdd6..a845c3c8 100644
--- a/a/Assembler Bootsect.asm	
+++ b/a/Assembler Bootsect.asm	
@@ -5,7 +5,7 @@
 
 	jmp	$
 	
-	HelloWorld	db	"Hello world!",0xD,0xA,0
+	HelloWorld	db	"Hello World",0xD,0xA,0
 	
 print_string:
 	mov	ah,0xE
@@ -19,4 +19,4 @@ print_string:
 	ret
 	
 	times	510-($-$$)	db	0
-	dw	0xAA55
\ No newline at end of file
+	dw	0xAA55
diff --git a/a/Assembler IBM360.asm b/a/Assembler IBM360.asm
index 0b624f9c..9046bc51 100644
--- a/a/Assembler IBM360.asm	
+++ b/a/Assembler IBM360.asm	
@@ -4,5 +4,5 @@
 MSGAREA  EQU   *             Message Area
          DC    AL2(19)       Total area length = 19 (Prefix length:4 + Data Length:15) 
          DC    XL2'00'       2 bytes binary of zeros
-         DC    C'Hello world!'  Text to be written to system console
+         DC    C'Hello World'  Text to be written to system console
          END
diff --git a/a/Assembler Intel.asm b/a/Assembler Intel.asm
index aa7d827c..099f8f4f 100644
--- a/a/Assembler Intel.asm	
+++ b/a/Assembler Intel.asm	
@@ -5,7 +5,7 @@
 .stack 100h
 
 .data
-msg db "Hello World!",'$'
+msg db "Hello World",'$'
 
 .code
 main proc
diff --git a/a/Assembler MASM DOS.asm b/a/Assembler MASM DOS.asm
index 40f6b02a..f030afb1 100644
--- a/a/Assembler MASM DOS.asm	
+++ b/a/Assembler MASM DOS.asm	
@@ -2,7 +2,7 @@
 .model small
 .stack
 .data
-    message   db "Hello world!", "$"
+    message   db "Hello World", "$"
 .code
     main    proc
         mov   ax,seg message
@@ -14,4 +14,4 @@
         mov   ax,4c00h
         int   21h
     main    endp
-end main
\ No newline at end of file
+end main
diff --git a/a/Assembler MASM Win32.asm b/a/Assembler MASM Win32.asm
index 1a08af6b..658d3234 100644
--- a/a/Assembler MASM Win32.asm	
+++ b/a/Assembler MASM Win32.asm	
@@ -14,7 +14,7 @@ EXTRN GetStdHandle@4 : PROC
 EXTRN WriteConsoleA@20 : PROC
 
 .data
-msg BYTE "Hello World!",0
+msg BYTE "Hello World",0
 bytesWritten DWORD ?
 
 .code
diff --git a/a/Assembler MASM Win64.asm b/a/Assembler MASM Win64.asm
index 9a4f1a0d..3b4271a5 100644
--- a/a/Assembler MASM Win64.asm	
+++ b/a/Assembler MASM Win64.asm	
@@ -10,7 +10,7 @@ ExitProcess PROTO
 WriteConsoleA PROTO
 
 .data
-msg BYTE "Hello World!",0
+msg BYTE "Hello World",0
 bytesWritten DWORD ?
 
 .code
diff --git a/a/Assembler MIPS.asm b/a/Assembler MIPS.asm
index 42784710..7a3c035e 100644
--- a/a/Assembler MIPS.asm	
+++ b/a/Assembler MIPS.asm	
@@ -1,5 +1,5 @@
 .data
-    hw:        .asciiz        "Hello, World!"
+    hw:        .asciiz        "Hello World"
 .text
 main:
     la $a0, hw           #load the address of hw into $a0
diff --git a/a/Assembler NASM FreeBSD.asm b/a/Assembler NASM FreeBSD.asm
index d5a80bb2..bc58e81b 100644
--- a/a/Assembler NASM FreeBSD.asm	
+++ b/a/Assembler NASM FreeBSD.asm	
@@ -27,5 +27,5 @@ _start:				;tell linker entry point
 				;there's no need to clean stack
 section	.data
 
-msg	db	"Hello, world!",0xa	;our string
-len	equ	$ - msg			;length of our string
\ No newline at end of file
+msg	db	"Hello World",0xa	;our string
+len	equ	$ - msg			;length of our string
diff --git a/a/Assembler NASM Linux.asm b/a/Assembler NASM Linux.asm
index c038b4f9..d740364a 100644
--- a/a/Assembler NASM Linux.asm	
+++ b/a/Assembler NASM Linux.asm	
@@ -16,5 +16,5 @@ _start:					;tell linker entry point
 
 section	.rodata
 
-msg	db	'Hello, world!',0xa	;our string
+msg	db	'Hello World',0xa	;our string
 len	equ	$ - msg			;length of our string
diff --git a/a/Assembler NASM Macho64.asm b/a/Assembler NASM Macho64.asm
index cf92777b..ab570cd1 100644
--- a/a/Assembler NASM Macho64.asm	
+++ b/a/Assembler NASM Macho64.asm	
@@ -13,5 +13,5 @@ start:
     syscall
 
 section .data
-msg:    db      "Hello, World!", 10
+msg:    db      "Hello World", 10
 .len:   equ     $ - msg
diff --git a/a/Assembler NASM Win32.asm b/a/Assembler NASM Win32.asm
index 3ded350b..14b9bd01 100644
--- a/a/Assembler NASM Win32.asm	
+++ b/a/Assembler NASM Win32.asm	
@@ -7,4 +7,4 @@ section	.text
 	add		esp,4
 	ret
 section	.data
-	msg:	db	"Hello world",0Ah,0
+	msg:	db	"Hello World",0Ah,0
diff --git a/a/Assembler TASM DOS.asm b/a/Assembler TASM DOS.asm
index 3966de91..f7148831 100644
--- a/a/Assembler TASM DOS.asm	
+++ b/a/Assembler TASM DOS.asm	
@@ -3,7 +3,7 @@ MODEL SMALL
 STACK 100h
 
 DATASEG
-msg			db "Hello World!", 0dh, 0ah, "$"
+msg			db "Hello World", 0dh, 0ah, "$"
 
 CODESEG
 start:
diff --git a/a/Assembler Vax Ultrix.asm b/a/Assembler Vax Ultrix.asm
index 2ee98b3a..c26e69c7 100644
--- a/a/Assembler Vax Ultrix.asm	
+++ b/a/Assembler Vax Ultrix.asm	
@@ -1,6 +1,6 @@
 .data
 hw:
-	.ascii "Hello World!\12"
+	.ascii "Hello World\12"
 .text
 	.align 1
 .globl _main
diff --git a/a/Assembler Z80 TI83calculator.asm b/a/Assembler Z80 TI83calculator.asm
index 339e1eea..3308df3e 100644
--- a/a/Assembler Z80 TI83calculator.asm	
+++ b/a/Assembler Z80 TI83calculator.asm	
@@ -15,6 +15,6 @@
       B_CALL(_NewLine)
       ret
 text:
-      .db "Hello, World",0
+      .db "Hello World",0
 .end
 end
diff --git a/a/Assembler Z80 zxspectrum.asm b/a/Assembler Z80 zxspectrum.asm
index 419b0275..3ea40167 100644
--- a/a/Assembler Z80 zxspectrum.asm	
+++ b/a/Assembler Z80 zxspectrum.asm	
@@ -17,5 +17,5 @@ EXIT
 SCR equ 16384
 
 STRING
-	defb "Hello World!"
+	defb "Hello World"
 	defb 13, 0
diff --git a/a/Assembler hla.hla b/a/Assembler hla.hla
index 2654daab..9e92f3d1 100644
--- a/a/Assembler hla.hla	
+++ b/a/Assembler hla.hla	
@@ -3,5 +3,5 @@ program HelloWorld;
 #include( "stdlib.hhf" );
 
 begin HelloWorld;
-  stdout.put( "Hello, world!", nl );
+  stdout.put( "Hello World", nl );
 end HelloWorld;
diff --git a/a/Assembler lc3.asm b/a/Assembler lc3.asm
index ea7d2439..f400c7f9 100644
--- a/a/Assembler lc3.asm	
+++ b/a/Assembler lc3.asm	
@@ -3,4 +3,4 @@
 			LEA R0, HELLOWORLD
 			PUTS
 	
-HELLOWORLD	.STRINGZ "Hello world!\n"
+HELLOWORLD	.STRINGZ "Hello World\n"
diff --git a/a/Assembler m68000 amigaos.asm b/a/Assembler m68000 amigaos.asm
index 944b51c5..b9b92888 100644
--- a/a/Assembler m68000 amigaos.asm	
+++ b/a/Assembler m68000 amigaos.asm	
@@ -30,4 +30,4 @@ PutStr       = -948
 	rts
 
 lib	dc.b	"dos.library", 0
-msg	dc.b	"Hello World!\n", 0
+msg	dc.b	"Hello World\n", 0
diff --git a/a/Assembler tms9900 ti99 4a.asm b/a/Assembler tms9900 ti99 4a.asm
index 26351d9e..3034e3f3 100644
--- a/a/Assembler tms9900 ti99 4a.asm	
+++ b/a/Assembler tms9900 ti99 4a.asm	
@@ -38,7 +38,7 @@ LOOPBACK
 
 
 HELLOWORLD
-        TEXT 'HELLO WORLD!'     * string data
+        TEXT 'HELLO WORLD'     * string data
         BYTE 0
 
         END