Back pain can also result from more-serious injuries, such as a vertebral fracture or ruptured disk; from arthritis and other age-related changes in your spine; and from certain infections. Possible causes of back pain include: 1  Ankylosing spondylitis.  Meralgia paresthetica.
Noun. 1. microcomputer-a small digital computer based on a microprocessor and designed to be used by one person at a time. PC, personal computer. desktop computer-a personal computer small enough to fit conveniently in an individual workspace.
Microprocessor is a purely a CPU that follows a set of instructions read from an external memory bus. It controls external peripherals (such as screen, keyboard, mouse, hard drive, etc) via an external communications bus. When you program a microprocessor, your program is external to the device.