The document discusses numerical control machines and their history. It mentions that numerical control machines first emerged in the 1950s and uses computer programs to control machine tools. The document also lists some common terms and technologies related to numerical control machines like numerical control, computer numerical control, computer-aided design, computer-aided manufacturing, G-code, and flexible manufacturing systems.

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Numerical Control (NC)Numerical Control (NC)
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14. NC : Numerical control
CNC : Computer numerical control
CAD : Computer aided design / draft
CAM : Computer aided manufacturing /
machining
G-CODE : Go commands
APT : Automat programming tool
FMC: Flexible manufacturing center
FMS : Flexible manufacturing system
Machine center :

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