It's not the same. With a Smalltalk system, there isn't really an operating system. All activity we would normally ascribe to an OS is simply implement in the S

It's not the same. With a Smalltalk system, there isn't really an operating system. All activity we would normally ascribe to an OS is simply implement in the Smalltalk environment, using Smalltalk objects, running in a live image. I recommend checking out the Smalltalk-80 "Blue Book", which is beautifully written. You can also play with Pharo too, just be sure to understand that it's adapted for modern personal computers and therefore has to run as a virtual machine. A system that could run Smalltalk natively would be much better.