A WAN can cover country, continent or even a whole world.

Internet connection is an example of WAN.

Other examples of WAN are mobile broadband connections such as 3G, 4G etc.

A soft copy (sometimes spelled "softcopy") is an electronic copy of some type of data, such as a file viewed on a computer's display or transmitted as an e-mail attachment.

Such material, when printed, is referred to as a hard copy .

Headquarters of OGDC located in Islamabad.

NHA was formed in 1991.

What is the National Instrument of Pakistan?

Trumpet, Trombone, Guiter, Dafli, None of these

Dafli is a frame drum musical instrument, used in popular and classical music in Pakistan. 

Inzamam-ul-Haq is the only Pakistani batsman to score 20,000 runs in international cricket arena.

The first SAF Games were held in Kathmandu in 1984 followed by Dhaka (1985), Kolkata (1987), Islamabad (1989), Colombo (1991), Dhaka (1993) and Chennai (1995).

SAF stands for South Asian Federation.

MS-Excel is based on Windows. MS-Excel is a spreadsheet developed by Microsoft for Windows and few other operating systems.

It is a program that stores and retrieves numerical data in rows and columns of grid format.

Non-volatile memory  or non-volatile storage is a type of computer memory that can retain stored information even after power is removed.

An output device is any device used to send data from a computer to another device or user.