Actually, having written operating systems in C, Objective-C and Smalltalk I can say that unless we are talking about something MS-DOS like in simplicity then t

Actually, having written operating systems in C, Objective-C and Smalltalk I can say that unless we are talking about something MS-DOS like in simplicity then the Smalltalk OS will be much smaller than the C one. The unstripped binary for the Little Smalltalk 3 virtual machine is 55,229 bytes on my Linux computer and the systemImage file, at 102,100 bytes, includes mostly things that would not be needed for a "hello world" program.