Windows 8 is part of the Windows NT family of operating systems. Windows NT is a family of operating systems produced by Microsoft, which includes Windows NT 3.1, Windows NT 3.5, Windows NT 4.0, Windows 2000, Windows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, and Windows 10. The Windows NT architecture is known for its stability, security, and advanced features, making it suitable for both personal and enterprise use.

1. Optical Mark Reading (OMR) is a method of entering data into a computer system.

2. Optical mark readers read pencil or pen marks made in pre-determined positions on paper forms as answers to questions or tick list signs.

Among the given statements about for loops, the one that is NOT true is that they are used to replace user input while loops. While for loops are typically used for iterations with a known count and are less likely to result in an infinite loop if used correctly, they do not specifically replace user input while loops.

1. DOS is not an example of a mobile operating system.

2. Android Android (Android Droid) and Apple iOS (Apple iOS) is a mobile operating system.

3. Mobile operating systems are operating systems that run on mobile devices such as smartphones, tablets, and smartwatches.

1. LCD panel types include normal and roof-mounted.

2. Liquid Crystal Display flats are thinner and lighter making them more useful and easier for users than CRTs. It consumes less power than CRT.