Considered programming hardware resources in Windows functions via BIOS, IO ports and programming interface Win32 API. The methods of access and management of all major devices of the modern personal computer: mouse, keyboard, video card, sound card, disk subsystem, the processor, bus, ports and others. Attention is paid to the general methods of programming in Windows, and various tricks and cunning when writing programs: paper files, network interaction, self-destruction of executable files, obtaining data on USB-devices, and others. A large number of simple and clear examples written in C ++ and Assembler.