Decimal Computer
Decimal Computer is a teaching tool for use in machine language computer science courses. We are in the early stages of developing this program, but a rough draft of the program is online and free to use. Feedback and comments are welcome.
Go to: http://www.DecimalComputer.com
Product details
Decimal Computer is a three decimal digit virtual machine. It contains one hundred cells of memory, fifteen input cards and fifteen output cards. The central processing unit (CPU) contains a three decimal digit accumulator with an associated one decimal digit 'carry bit', a three decimal digit instruction register, and a two decimal digit program counter. It can handle signed-magnitude execution with an additional sign bit, or alternatively, ten's complement execution without the sign bit.
Product price
Decimal Computer is currently free to use.