The book discusses the interfaces used to connect various types of storage devices: floppy and hard magnetic disks, optical, tape and solid-state. Provides an overview and comparative characteristics of the interfaces used in both individual computers and storage area networks (SANs). The main attention is paid to the two most popular families of interfaces - ATA and SCSI, an explanation of the ideological differences of these families is given, the trends of their convergence are considered. Separate chapters are devoted to the interfaces of solid-state storage devices on flash memory, as well as the use of USB and FireWire buses to connect storage devices. Numerous illustrations reveal the hardware and software features of interfaces and protocols. The book is intended for specialists involved in the development of hardware and software for computer equipment. It can also be useful for university students who study in depth the architecture of computing systems and interfaces of peripheral devices.