The document classifies different types of computing devices and software. It breaks devices into input devices like keyboards and mice, output devices like monitors and printers, processing devices like CPUs, memory devices such as RAM and ROM, and storage devices like USB drives and CDs. Software is classified into application software like Microsoft Office and system software. Computers are also classified as personal computers, workstations, game consoles, servers, mainframes, PDAs, smartphones, and microcontrollers.