<Ul> <Li> The kernel was monolithic and thus old - fashioned . </Li> <Li> The lack of portability, due to the use of exclusive features of the Intel 386 processor . "Writing a new operating system that is closely tied to any particular piece of hardware, especially a weird one like the Intel line, is basically wrong ." </Li> <Li> There was no strict control of the source code by any individual person . </Li> <Li> Linux employed a set of features which were useless (Tanenbaum believed that multithreaded file systems were simply a "performance hack"). </Li> </Ul> <Li> The kernel was monolithic and thus old - fashioned . </Li> <Li> The lack of portability, due to the use of exclusive features of the Intel 386 processor . "Writing a new operating system that is closely tied to any particular piece of hardware, especially a weird one like the Intel line, is basically wrong ." </Li> <Li> There was no strict control of the source code by any individual person . </Li>

Who wrote a computer operating system called linux and gave millions of copies away