Friday, June 4, 2021

COVID-19 Prevention Tips कोविड-19 से बचाव के उपाय) || इलाज से बेहतर रोकथ...

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Computer Objective Questions || Practice Set || Shishu Varg || Class 4 & 5

1) What is the first mechanical calculating device of the world? Answer:- Abacus Q2) Who is Know as the world's First Programmer...