The most reactive of the halogens

In an operating system, which mode allows unrestricted access to hardware resources and is used by the kernel?

Which of the following laptop is manufactured by IBM?

Which of the following is an example of a binary number?

Which of the following is an open source software ?

Which one of the following is correct ?

What is the base of hexadecimal number system?

In Excel, dragging the fill handle while holding Ctrl (with numbers) generally:

Which company developed the first popular web browser, Netscape Navigator?

Microsoft Outlook is primarily used for:

Which among the following statements is incorrect?