... numbers; each character has a numericcode. The instructions that a computer loads into its registers are stored as numbers; eachinstruction in the instruction set has a numeric code. Second, computer ... models of computers.4 C PRIMER PLUS FIGURE 1.2Where C is used. C languageUNIXoperatingsystemcomputergamesembeddedsystemscomputerlanguagesrobotfactoriesLucasfilmPCapplicationsStarWars01 ... specifically to accessparticular hardware devices, such as a display monitor, or special features of an operating sys-tem, such as Windows XP or OS X, typically are not portable.Because of C s...