An information processing apparatus providing a specific function includes a non-volatile function program memory that stores a function program for providing the specific function, a main memory, and an arithmetic device that reads and stores the function program from the function program memory into the main memory at startup of the information processing apparatus and performs an arithmetic operation based on the function program to execute the function program. The arithmetic device operates at a start frequency set for startup as a clock frequency for accessing the function program memory when reading and storing the function program from the function program memory into the main memory at the startup, and operates at a frequency lower than the start frequency as the clock frequency for accessing the function program memory after reading and storing the function program into the main memory.