PowerPoint Presentation

Programs end up as numbers
in mailboxes, also!

Programs are stored the same way, as a buffer of numbers. A program that reads someone’s last name and repeats it to them is compiled into a series of instructions that Norman understands.

Each instruction has a unique number. For example,

•23 = “Copy the number from the next mailbox and hold that piece of paper in your left hand.”

•188 = “Put the piece of paper in your left hand into the mailbox with the box number written on the piece of paper in your right hand.”