The computer mouse was invented by Douglas Engelbart.
Engelbart conceived of and developed the first computer mouse in the 1960s while working at the Stanford Research Institute (SRI). His invention was part of a larger project aimed at augmenting human intellect and improving human-computer interaction.
The mouse was publicly demonstrated in 1968 during what is known as "The Mother of All Demos".
Who has developed the technology enabling India to shoot down fixed-wing drones using a laser beam?
Consider the following statements:
1. Aditya-L1, a space observatory with 9 payloads designed to study the Sun.
2. The VELC will take image the Sun's atmosphere, the Corona at high resolution and time cadence.
3. Aditya -L1 carries an ultraviolet imager, 3 X-ray spectrometer and four in -situ instruments to measure plasma parameters.
How many of the statements given above are correct?
Consider the following pairs :
1. CREST: Hosakote
2. Solar Observatory: Kodaikanal
3. Radio Observatory: Gauribidanur
How many of the above pairs are correctly matched?