Free as in Freedom the Linux kernel, Torvald's willingness to borrow GCC for the purposes of his own free software operating system indicated a certain obligation to let other users borrow back. As Torvalds would later put it: "I had hoisted myself up on the shoulders of giants." Not surprisingly, he began to think about what would happen when other people looked to him for similar support. Andrew Leonard in "Salon" complimented the amount of new information Williams reveals about Stallman, given the amount of material already published. He describes the book as a "nuanced, detailed picture of Stallman". In "Computer User", Jende Huang
Operating-system-level virtualization system's resources. They include: The operating system may be able to allow or deny access to such resources based on which program requests them and the user account in the context of which it runs. The operating system may also hide those resources, so that when the computer program enumerates them, they do not appear in the enumeration results. Nevertheless, from a programming point of view, the computer program has interacted with those resources and the operating system has managed an act of interaction. With operating-system-virtualization, or containerization, it is possible to run programs within containers, to which only parts