Who is the scientist who invented the commands of Cut, Copy and Paste and Find and Replace in computer?

कम्प्यूटर में Cut, Copy और Paste तथा Find एवं Replace की कमाण्ड का आविष्कार करने वाले वैज्ञानिक कौन हैं ? 

लैरी टेस्लर (इनका 20 फरवरी 2020 को 74 वर्ष की आयु में निधन हुआ)
Who is the scientist who invented the commands of Cut, Copy and Paste and Find and Replace in computer? 

Larry Tesler (died on February 20, 2020 at the age of 74)

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