Ans: Abacus was the first mechanical computing device developed by the Chinese between 500 and 600 B.C.E.
| 
Note: Abacus could
  perform simple calculations such as addition and subtraction by shifting the
  beads which is present in it from one side to another. | 
2) What is cyber crime?
| Note: This type of crime is prevalent in modern technological society and is becoming more high profile as a greater number of serious crimes. Cyber crime is growing fast because of the evolution of technology is fast, but the evolution of law is slow. | 
 






 
 
