What will be come in place of (?) in the given number

Second generation of computers consists of which of the following?

Which of the following is a permanent form of data storage?

In word processors, which feature allows formatting such as font style and border to be copied and applied quickly to other text?

The use of combination of 1’s and 0’s is feature of which of the following type of  computer language?

Which of the following allows user authentication through fake identity?

Which printing technology uses tiny ink droplets propelled onto the paper?

What does 'BIOS' stand for in a computer system?

Which device is commonly used to read barcodes into a computer?  

A device needed to communicate with computers using telephone lines is?

Which combination of keys needs to be pressed to make a percent sign?