Many excellent image creation and enhancement solutions exist for MS-DOS and Windows. Note that such systems typically require adequate horsepower to do the job of editing images.
Summary: CPU
Look for at least an 80386 or better processor. You should also consider configuring your PC with plenty of additional RAM.
Summary: Hard Disk
Image files are large and fill up a hard disk quickly. Provide your system with sufficient disk storage (at least 300-600 MB) to capture, edit, and convert the images used by your application.
Summary: Display
You should have at least a 256-color VGA monitor and card (8-bit) to review and edit images effectively. You may want to invest in a 24-bit monitor and card to view and edit higher quality images.