General Knowledge Science Technology and Inventions

କମ୍ପ୍ୟୁଟର ମାଉସ୍ କିଏ ଆବିଷ୍କାର କରିଥିଲେ ?

1
ଡଗ୍ଲାସ୍ ଏଞ୍ଜେଲବାର୍ଟ 
2
ବିଲ୍ ଗେଟ୍
3
ଇଭାନ ସୁଥରଲ୍ୟାଣ୍ଡ
4
ଆଲାନ୍ ଟୁରିଂ

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