The clock strikes 6 times at 6 o'clock, 10 seconds ends, and it takes 28.8 seconds to strike 12.

It is known that the clock strikes 6 times at 6 o'clock and * * * strikes 6 times.

It is known that it takes 10 second to knock six times.

According to the ringing times = total ringing times/ringing times each time, we can calculate how many times the clock will ring: 6/(6- 1)= 1.2 seconds/,and it is known that the clock will ring 12 times.

According to the clock strike times = total clock strike times/clock strike times, we can calculate the clock strike times: 12/(6- 1)=2.4 seconds/time.

According to the total time = ringing times × ringing time, we can calculate the total time of knocking 12: 12×2.4=28.8 seconds, so when the clock strikes 6 o'clock, it takes 28.8 seconds to knock 12.

The origin of computing:

The earliest computing tools can be traced back to ancient counters. In ancient Egypt, people used stones or beans to count. In ancient China, people used knotted ropes to count. Over time, people invented more complex counting tools, such as Roman counter and China abacus.

/kloc-in the 6th century, European mathematicians began to study mathematical symbols and algorithms, which laid the foundation of modern mathematics. /kloc-in the 7th century, the French mathematician blaise pascal invented the world's first mechanical computer, which can add and subtract. Later, his son Jacques Pascal invented a computer that can perform multiplication and division.

/kloc-in the 9th century, Charles Babbage, a British mathematician, put forward the concepts of difference machine and analyzer, which can automatically perform arithmetic and logical operations, laying a foundation for the development of modern computers. At the beginning of the 20th century, alan turing, an American scientist, put forward the concept of Turing Machine, which is a theoretical model and laid the foundation for the algorithm and theory of modern computers.