IBM 402 accounting machine

Target entity: IBM 402 accounting machine
Context triple: [IBM 604, usedInCombinationWith, IBM 402 accounting machine]

• A. IBM 521 card punch
  The IBM 521 card punch was an electromechanical unit record machine used to punch, read, and process data on punched cards in early IBM data processing systems.
• B. Harvard Mark I computer
  The Harvard Mark I computer was an early electromechanical, general-purpose computer built during World War II that pioneered the separation of data and instruction storage later known as the Harvard architecture.
• C. IBM 650
  The IBM 650 was an early, widely used mid-1950s drum-based decimal computer that helped popularize electronic data processing in business and education.
• D. IBM 605
  The IBM 605 was an early electronic calculating machine introduced in the 1940s that automated complex arithmetic operations for business and scientific applications.
• E. Harvard Mark IV computer
  The Harvard Mark IV computer was an early fully electronic, stored-program computer built at Harvard University in the late 1940s–early 1950s as part of the Mark series of pioneering computing machines.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: IBM 402 accounting machine
Target entity description: The IBM 402 accounting machine was an electromechanical tabulator widely used in the mid-20th century for business data processing tasks such as sorting, tabulating, and printing information from punched cards.

• A. IBM 521 card punch
  The IBM 521 card punch was an electromechanical unit record machine used to punch, read, and process data on punched cards in early IBM data processing systems.
• B. Harvard Mark I computer
  The Harvard Mark I computer was an early electromechanical, general-purpose computer built during World War II that pioneered the separation of data and instruction storage later known as the Harvard architecture.
• C. IBM 650
  The IBM 650 was an early, widely used mid-1950s drum-based decimal computer that helped popularize electronic data processing in business and education.
• D. IBM 605
  The IBM 605 was an early electronic calculating machine introduced in the 1940s that automated complex arithmetic operations for business and scientific applications.
• E. Harvard Mark IV computer
  The Harvard Mark IV computer was an early fully electronic, stored-program computer built at Harvard University in the late 1940s–early 1950s as part of the Mark series of pioneering computing machines.
• F. None of above. chosen