gk questions

who invented ball point pen

Who had invented zero?

Doctor’s Thermometer was invented by:

Who had discovered oxygen?

Name the scientist who had discovered that earth revolves round the sun?

'OS' computer abbreviation usually means

'.MOV' extension refers usually to what kind of file?

8.Most modern TV's draw power even if turned off. The circuit the power is used in does what function?

What is the term to ask the computer to put information in order numerically or alphabetically?

.What do we call a collection of two or more computers that are located within a limited distance of each other and that are connected to each other directly or indirectly?