1. An information-processing device that executes a specific process more frequently than other processes among a variety of processes, said information-processing device comprising: a first processor, having a single program counter, configured as hardware implementation to execute an instruction set corresponding to the variety of processes; and a second processor configured as hardware implementation to execute a portion or entirety of the same instruction set that the first processor executes, said second processor including a plurality of program counters for executing a plurality of processes simultaneously so as to execute a part of said instruction set corresponding to the specific process more efficiently than said first processor, wherein the specific process is assigned to said second processor for execution by the second processor whereas the other processes are assigned to said first processor for execution by the first processor, and each process is comprised of a series of instructions, the first processor and the second processor being configured such that a series of instructions executed by the first processor is separate from and independent of a series of instructions executed by the second processor.