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
Disk operating system to be installed inside the computer. Some disk operating systems were the operating system for the entire computer system. Disk operating system A disk operating system (abbreviated DOS) is a computer operating system that can use a disk storage device, such as a floppy disk, hard disk drive, or optical disc. A disk operating system must provide a file system for organizing, reading, and writing files on the storage disk. Strictly speaking, this definition does not apply to current generations of operating systems, such as versions of Microsoft Windows in use, and is more appropriately used only for older generations