Computer Science GK- Set 1

1. Which of the following is the primary output device for computers?

Answer:  Video monitor

Solution: The monitor is the primary output device for a computer, and probably what you interface with the most. The video monitor is the most commonly used output device.

 2. A directory within a directory is called

Answer:  Sub-Directory

Solution: A directory within a directory is called a sub-directory. An organizational directory on a computer that is located within another directory: subfolder.

3. In windows XP, which shortcut is used to cycle through opened items in the taskbar?

Answer:  Alt + Esc

Solution: (Alt + Esc) – Similar to Alt + Tab but switches the windows in the order they were opened in. (Windows Key + Pause/Break) – Will open the system properties window. (Ctrl + Esc) – Opens the start menu.

4. Stored data in which of the following remains intact even after the computer is turned off?

Answer:  Secondary Storage Device

Solution: Secondary storage is a memory that is stored external to the computer. It is mainly used for the permanent and long-term storage of programs and data. Hard Disk, CD, DVD, Pen/Flash drive, SSD, etc.

5. SMTP, FTP, and DNS are applications of the ________ layer.

Answer:  Application

Solution:  Domain Name System (DNS), Simple Mail Transfer Protocol (SMTP), File Transfer Protocol (FTP), Trivial File Transfer Protocol (TFTP), and TELNET are some of the protocols used in the application layer.

6. Which of the following is not a common feature of software applications?

 Answer:  Windows

Solution: Windows is not a common feature of software applications. Perform more specialized tasks like word processing, spreadsheets, email, photo editing, etc.

7. In MICR, C stands for

Answer:  Character

Solution:  In MICR, C stands for character. MICR (magnetic ink character recognition) is a technology used to verify the legitimacy or originality of paper documents, especially checks.

8. A _______ computer is a large and expensive computer capable of simultaneously processing data for hundreds or thousands of users.

Answer:  Mainframe

Solution:  Mainframe Computer is a large and expensive computer that is capable of simultaneously processing data for hundreds or thousands of users.

9. The trend in computer systems is toward the use of graphical user interfaces (GUIs). In these operating systems, a trackball is described as__________

Answer:  A roller ball that moves the cursor.

Solution:  The rollerball remains stationary, allowing users to simply move the mouse ball with their fingers or with their thumb to move the cursor.

10. The _______ folder retains copies of messages that you have started but are not yet ready to send

Answer:  Drafts.

Solution:  Messages that have been composed but that you don’t want to send yet should be saved in the Drafts folder. Messages that have been sent will normally be stored in the Sent items folder.

11. The ability of an OS to run more than one application at a time is called___________

Answer:  Multitasking

Solution:   Multitasking refers to the ability to execute more than one task (or program) at the same time. In multitasking, only one CPU is involved, but it switches from one program to another so quickly that it gives the appearance of executing all of the programs at the same time.

12. Which of the following is an example of non-numeric data?

Answer:  None of these

Solution: Non–numeric data is any form of data that is measured in non-number (or word) form. It makes use of symbols and letters. Such data can only be identified in a word format. For example, employee address, date of birth, name, etc.

13. Coded entries which are used to gain access to a computer system are called_______

Answer:  Passwords

Solution: Coded entries used to gain access to a computer system are called Passwords. Password is used for user authentication.

14. To move to the bottom of a document, press__________

Answer:  Ctrl key + End key


To move to the bottom of a document, press the Ctrl key + End key.

To try it out, open a lengthy page document or website, something long enough that you would normally have to scroll down to reach the bottom.

15. A device that is connected to the motherboard is _______.

Answer:  Called a peripheral device.

Solution: A computer peripheral, technically speaking, is any device that connects to the computing unit but is not part of the core architecture of the computing unit. The core computing unit consists of the central processing unit (CPU), motherboard, and power

16. An error is also known as_______________

Answer:  Bug

Solution: An error in a computer program is known as Bug and the process of fixing Bugs is known as Debug.

17. What type of device is a keyboard?

Answer:  Input

Solution: A piece of equipment/hardware that helps us enter data into a computer is called an input device.

18. Arithmetic operations________________

Answer:  Include addition, subtraction, multiplication, and division.

Solution: Arithmetic operations is a branch of mathematics that involves the study of numbers, the operation of numbers that are useful in all the other branches of mathematics. It basically comprises operations such as Addition, Subtraction, Multiplication, and Division.

19. Which part of the computer helps to store information?

Answer:  Disk drive

Solution: A computer hard disk drive (HDD) is a non-volatile data storage device. Non-volatile refers to storage devices that maintain stored data when turned off. All computers need a storage device, and HDDs are just one example of a type of storage device.

20. Which of the following is the default mask of a class A IP address?


Solution: Class networks use a default subnet mask of 255.0. 0.0 And have 0-127 as their first octet.

21. What is Internet?

Answer:  An association to develop advanced Internet technology

Solution: The Internet, sometimes called simply “the Net,” is a worldwide system of computer networks — a network of networks in which users at any one computer can, if they have permission, get information from any other computer (and sometimes talk directly to users at other computers).

22. To drop a column that is used as a foreign key, first___________

Answer:  Drop the foreign key constraint.

Solution: To drop a foreign key from a table, use the ALTER TABLE clause with the name of the table (in our example, student) followed by the clause DROP CONSTRAINT with the name of the foreign key constraint.

23. The name given to a document by the user is called________

Answer:  Filename

Solution: A file – name is a name used to uniquely identify a computer file stored in a file system.

24. ________ is a procedure that requires users to enter an identification code and a matching password.

Answer:  Logging on

Solution: Logging on is a procedure that requires users to enter an identification code and a matching password.

25. Which device is used as the standard pointing device in a Graphical User Environment?

Answer:  Mouse

Solution: The major pointing device is the mouse for the desktop computer and the touchpad for the laptop, although many road warriors bring along a mouse.

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