Computerized numerical controller for a machine apparatus

A numerical control system comprising:

• a machine tool having a plurality of feed servomechanisms for machining a workpiece;
• data reading means adapted to operate prior to control of said machine tool for reading a first record medium carrying source language instruction data prescribing movement of said machine tool and a second record medium carrying tool data for tools to be used in said machine tool, said source language instruction data being written in an automatic programming language;
• and
• a data processor connected to said data reading means and said machine tool and comprising:
• (a) first and second data storage means connected to said data reading means for respectively storing said source language instruction data and said tool data read by said data reading means,
• (b) third data storage means for storing a plurality of blocks of machine part instruction data,
• (c) language translator means connected to said first, second and third data storage means for translating each block of said source language instruction data and related tool data of said tool data stored in said first and second data storage means, into a number of blocks of machine part instruction data and for storing the same in said third data storage means, and
• (d) numerical control means connected to said third data storage means and said machine tool for reading out each block of said machine part instruction data from said third data storage means and for numerically controlling said feed servomechanisms of said machine tool in accordance with said read-out block of said machine part instruction data.