Who has developed the Automatically Programmable Tool (APT)?

This question was previously asked in
SSC CHSL Previous Paper 107 (Held On: 20 Oct 2020 Shift 3)
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  1. Gary Kildall
  2. Jonathan Fletcher
  3. Ralph H Baer
  4. Douglas T Ross

Answer (Detailed Solution Below)

Option 4 : Douglas T Ross
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SSC CHSL Exam 2023 Tier-I Official Paper (Held On: 02 Aug 2023 Shift 1)
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Detailed Solution

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The correct answer is Douglas T Ross.

Key Points

  • APT stands for Automatically Programmed Tool.
    • It was developed by Douglas T Ross.
    • It is a language that defines the tool path with respect to the part geometry and often forms the basis for post-processor generated NC files.

Additional Information

  • The APT programming language is a language for defining tool paths on CNC machines.
  • The APT language consists of four types of statements:
    • ​Geometry statements will be used to specify the elemental features defining the part shape
    • Motion statements are used to specify the path taken by the tool
    • Post-processor statements control the machinery, controlling coolants as well as the feeds and speeds.
    • Auxiliary statements complete the picture, specifying the part, required tools, etc. 
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