diff --git a/yourfirstos/firstos.asm b/yourfirstos/firstos.asm
new file mode 100644
index 0000000..8f66582
--- /dev/null
+++ b/yourfirstos/firstos.asm
@@ -0,0 +1,37 @@
+	BITS 16
+
+start:
+	mov ax, 07C0h		; Set up 4K stack space after this bootloader
+	add ax, 288		; (4096 + 512) / 16 bytes per paragraph
+	mov ss, ax
+	mov sp, 4096
+
+	mov ax, 07C0h		; Set data segment to where we're loaded
+	mov ds, ax
+
+
+	mov si, text_string	; Put string position into SI
+	call print_string	; Call our string-printing routine
+
+	jmp $			; Jump here - infinite loop!
+
+
+	
+text_string db 'This is my cool new Operating System!', 0
+
+print_string:			; Routine: output string in SI to screen
+	mov ah, 0Eh		; int 10h 'print char' function
+
+.repeat:
+	lodsb			; Get character from string
+	cmp al, 0
+	je .done		; If char is zero, end of string
+	int 10h			; Otherwise, print it
+	jmp .repeat
+
+.done:
+	ret
+
+
+	times 510-($-$$) db 0	; Pad remainder of boot sector with 0s
+	dw 0xAA55		; The standard PC boot signature
\ No newline at end of file
diff --git a/yourfirstos/make-qemu.bat b/yourfirstos/make-qemu.bat
new file mode 100644
index 0000000..39d7f9b
--- /dev/null
+++ b/yourfirstos/make-qemu.bat
@@ -0,0 +1,2 @@
+..\ext\nasm\nasm -f bin -o os.flp firstos.asm
+..\ext\qemu\qemu-system-x86_64.exe -L ..\ext\qemu -m 128 -fda os.flp
\ No newline at end of file
diff --git a/yourfirstos/make-qemu.sh b/yourfirstos/make-qemu.sh
new file mode 100644
index 0000000..873c4b8
--- /dev/null
+++ b/yourfirstos/make-qemu.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+
+nasm -f bin -o os.flp firstos.asm
+qemu-system-x86_64.exe -m 128 -fda os.flp
\ No newline at end of file
diff --git a/yourfirstos/make-vb.bat b/yourfirstos/make-vb.bat
new file mode 100644
index 0000000..173cc03
--- /dev/null
+++ b/yourfirstos/make-vb.bat
@@ -0,0 +1,15 @@
+@echo off
+set vboxmanage="C:\Program Files\Oracle\VirtualBox\vboxmanage.exe"
+set vboxname=os1_%COMPUTERNAME%_%USERNAME%
+..\ext\nasm\nasm -f bin -o os.img firstos.asm
+%vboxmanage% unregistervm %vboxname% --delete 2> nul
+%vboxmanage% createvm --name %vboxname% --basefolder %CD% --register
+%vboxmanage% modifyvm %vboxname% --memory "256"
+%vboxmanage% modifyvm %vboxname% --bioslogodisplaytime "1"
+%vboxmanage% storagectl %vboxname% --name Floppy --add floppy --bootable on
+%vboxmanage% storageattach %vboxname% --device 0 --storagectl Floppy --type fdd --medium %CD%\os.img
+%vboxmanage% startvm %vboxname%
+pause
+%vboxmanage% controlvm %vboxname% poweroff
+timeout /t 2 /nobreak > NUL
+%vboxmanage% unregistervm %vboxname% --delete
diff --git a/yourfirstos/make-vb.sh b/yourfirstos/make-vb.sh
new file mode 100644
index 0000000..ba639a1
--- /dev/null
+++ b/yourfirstos/make-vb.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+
+vboxmanage=`which vboxmanage`
+vboxname=os1_`hostname`_$USER
+nasm -f bin -o os.img firstos.asm
+$vboxmanage unregistervm $vboxname --delete 2> nul
+$vboxmanage createvm --name $vboxname --basefolder $PWD --register
+$vboxmanage modifyvm $vboxname --memory "256"
+$vboxmanage modifyvm $vboxname --bioslogodisplaytime "1"
+$vboxmanage storagectl $vboxname --name Floppy --add floppy --bootable on$PWD%CD%\os.img
+$vboxmanage startvm $vboxname
+pause
+$vboxmanage controlvm $vboxname poweroff
+timeout /t 2 /nobreak > NUL
+$vboxmanage unregistervm $vboxname --delete
\ No newline at end of file