PURPOSE: To reduce routine work, the time required, and unevenness of program ming contents by providing input unit, storage unit, output unit, and communica tion unit, which are connected to CPU.

CONSTITUTION: Communication unit is composed of DSU 2-8 and communication link 2-9, and receives data necessary for programming from center system. Input unit is composed of keyboard 2-3 and mouse 2-4, into which instruction of programming factor, start of programming, and instruction of modification of programming result are input. Especially, mouse 2-4 is used for modification of programming result. Storage unit consists of magnetic disk 2-5 and floppy disk 2-7, and stores data received on the magnetic disk 2-5 and data of input race result, etc. Floppy disk is used for back up to magnetic disk 2-5. Output unit consists of CRT 2-2 and printer 2-6, and is used for output of programming result, etc., processed by CPU 2-1.