The World's First Computer Mouse
UmaDev
July 27, 2026
The World's First Computer Mouse "Did you know the world's first computer mouse was made of wood?" It was invented in...
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SCIENCE AND TECHNOLOGY
FOUR COLOURED DOTS IN THE BOTTOM OF THE NEWSPAPER
UmaDev
September 15, 2020
INTRODUCTION Newspaper , our morning starts with a cup of coffee or tea along with the Newspaper. Newspaper brings all the stories from ...
WHAT IS A BARCODE : HISTORY AND TYPES
UmaDev
August 31, 2020
INTRODUCTION Everyone would have seen Barcode. It plays a vital role in all shops while billing the materials or products. Barcode reade...
THE ORIGIN OF SMALLPOX AND THE DISCOVERY OF VACCINATION
UmaDev
August 23, 2020
INTRODUCTION “For centuries, prior to Jenner’s discovery of vaccination in 1798, Smallpox had been regarded as the King of fatal diseases...
ALL ABOUT VACCINATION OR INOCULATION
UmaDev
August 23, 2020
INTRODUCTION The purpose of vaccination is to protect individuals against diseases caused by bacteria, viruses, and microorganisms. It a...
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