The invention of the barcode system for scanning retail merchandise was patented by whom? MCQ with Answer and Explanation

The invention of the barcode system for scanning retail merchandise was patented by whom?

A. Alan Turing

B. Masahiro Hara

C. Douglas Engelbart

D. Norman Joseph Woodland and Bernard Silver

Answer: Option D

Woodland and Silver patented the bullseye and linear barcode design in 1952, inspired by Morse code tracking patterns.

This question belongs to: Static General Knowledge Inventions and Discoveries

No comments yet. Be the first to start the discussion!

Question #1 Report Error

Who is the inventor of the Richter Scale used to measure the magnitude of earthquakes?

A. Giuseppe Mercalli

B. Alfred Wegener

C. James Hutton

D. Charles Richter

Correct Answer: Option D

Explanation:
Charles F. Richter developed the Richter magnitude scale in 1935 in partnership with Beno Gutenberg.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2 Report Error

The invention of the dynamite is credited to which Swedish chemist?

A. Carl Wilhelm Scheele

B. Jöns Jacob Berzelius

C. Svante Arrhenius

D. Alfred Nobel

Correct Answer: Option D

Explanation:
Alfred Nobel invented dynamite in 1867, and later used his enormous fortune to institute the Nobel Prizes.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #3 Report Error

The invention of the first practical steam engine, the atmospheric engine, was completed by whom?

A. Thomas Savery

B. George Stephenson

C. Thomas Newcomen

D. James Watt

Correct Answer: Option C

Explanation:
Thomas Newcomen constructed the first practical piston-driven condensing atmospheric engine in 1712 to pump water from mines.

This question belongs to: Static General Knowledge Inventions and Discoveries