Answer: B) Both sequentially and parallelly Explanation:

Answer: C) Both A & B Explanation: A magnetic disk is a storage device that uses a magnetization process to write, rewrite and access data. It is covered with a magnetic coating and stores data in the form of tracks, spots, and sectors. Hard disks, zip disks, and floppy disks are common examples of magnetic disks.   Hence, Magnetic disks are the most popular medium for both Direct access and Sequential access.

Answer: B) @ Explanation:

Answer: B) Knowledge information processing system Explanation:

Answer: D) They use the same protocol Explanation:

Answer: B) Universal Resource Locator Explanation: A web page is located using a URL (Universal Resource Locator). Universal Resource Locator is also known as web address.   It basically refers to a web resource which is meant for the specification of its location on the network of computer. It is also a mechanism through which information can be retrieved.

Answer: A) Fourth generation Explanation: Microprocessors are used in the computers of fourth generation computers. Personal microcomputers were possible due to the microprocessors.   Microprocessors further revolutionized the development of computers.   The first microprocessor called Intel 4004 was developed by American Intel Corporation in 1971.

Answer: A) W3C Explanation: World Wide Web is being standard by W3C.   The World Wide Web Consortium (W3C) is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards. Led by Web inventor and Director Tim Berners-Lee and CEO Jeffrey Jaffe, W3C's mission is to lead the Web to its full potential.