Computer & Information Technology question bank solution

                  CENTRAL  INSTITUTE  OF PLASTICS ENGINEERING & TECHNOLOGY

                                             Question Bank (Solution)

COURSE : DPT 

SEMESTER: I 

SUBJECT : Computer & Information Technology

2 Mark – Questions Solution

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1. What is Protocol? What is full form of http and ftp?

Ans: set of rules between two computer by which they can communicate each other is called protocol.

http: hyper text transfer protocol

ftp: file transfer protocol

2. What is Computer Network.

Ans: A computer network is a set of computers connected together for the purpose of

sharing resources. The most common resource shared today is connection to the Internet.

Other shared resources can include a printer or a file server. The Internet itself can be

considered a computer network.

3. Explain Star network topology.

Ans: star network consists of one central hub which acts as a conduit to transmit messages. In star topology, every host is connected to a central hub. ... The star topology reduces the impact of a transmission line failure by independently connecting each host to the hub.

4. Explain Ring network topology.

Ans: A ring network is a network topology in which each node connects to exactly two other

nodes, forming a single continuous pathway for signals through each node - a ring. Data

travels from node to node, with each node along the way handling every packet.

5. Differentiate primary and secondry memory.

Ans: Difference between Primary storage and secondary storage.Primary memory is the

main memory (Hard disk, RAM) where the operating system resides. Secondary memory can

be external devices like CD, floppy magnetic discs etc. secondarystorage cannot be directly

accessed by the CPU and is also external memory storage.

6. Explain about control unit.

 Ans:The control unit (CU) is a component of a computer's central processing unit (CPU) that

directs the operation of the processor. It tells the computer's memory, arithmetic out.

logic unit and input and output devices how to respond to the instructions that have been  sent to the processor.A control unit or CU is circuitry that directs operations within a computer's processor. ... A control unit works by receiving input information that it converts into control signals, which are then sent to the central processor. The computer's processor then tells the attached hardware what operations to carry

7. What are system software ?

Ans:System software is computer software designed to provide a platform to other software.

Examples of system software include operating systems, computational science software,

game engines, industrial automation, and software as a service applications.

8. Explain internet application.

Ans:

Ø Search engine

Ø Communication

Ø Job search

Ø Hobbies

Ø Research

Ø Studying

Ø Email

Ø chatting

9. List out input and output devices.

Ans:Output Devices,

Monitor (LED,

 LCD, CRT etc),

Printers (all types)

Plotters.

Projector.

LCD Projection Panels.

Computer Output Microfilm (COM)

Speaker(s)

Head Phone.

Input devices

Keyboard.

Image scanner.

Microphone.

Pointing device.

Graphics tablet.

Joystick.

Light pen.

Mouse.

Optical. Pointing stick.

Touchpad.

Touchscreen.

Trackball.

Refreshable braille display.

Sound card.

Webcam. Softcam.

Video card.

10. What do mean by www and http.

Ans:HTTP means Hyper Text Transfer Protocol. HTTP is the underlying protocol used by the

World Wide Web and this protocol defines how messages are formatted and transmitted, and

what actions Web servers and browsers should take in response to various commands.

The World Wide Web (WWW) is a network of online content that is formatted in HTML and

accessed via HTTP. The term refers to all the interlinked HTML pages that can be accessed

over the Internet. The World Wide Web was originally designed in 1991 by Tim Berners-Lee

while he was a contractor at CERN.

11. List out application of Computer.

Ans:

Search engine

Communication

Job search

Hobbies

Research

Studying

Email

Chatting

MS Word, WordPad and Notepad.

Internet browsers like Firefox, Safari, and Chrome.

Microsoft Power Point, Keynotes.

Auto CAD.

MySQL, Oracle, MS Access.

Apple Numbers, Microsoft Excel.

Real Player, Media Player.

12. Explain Types of computer.

Ans:Supercomputers are Very Fast and Most Powerful. ...Mainframe computers — These are large and expensive computer types capable of supporting hundreds, or even thousands, of users simultaneously. ...Minicomputers — Minicomputers are mid sized computers.

13. List out types of printers.

Ans:

Impact printers

Dot-Matrix Printers.

Daisy-wheel printers.

Line printers.

Drum printer.

Chain printers.

Band printers.

Ink-jet printers.

Laser printers.

Non mpact printers

 Ink-jet printers

 Laser printers

14. What is barcode reader.

Ans:A bar code reader is an electronic device that can read and output printed barcodes to a

computer. Like a flatbed scanner, it consists of a light source, a lens and a light sensor

translating optical impulses into electrical ones.

15. Give the difference between RAM and ROM.

Ans:

RAM (Random Access Memory) and ROM (Read Only Memory) are types of computer memory that provide users with access to information stored on a computer. ... Data in RAM is not permanently written. When you power off your computer the data stored in RAM is deleted. ROM is a type of non- volatile memory.

16. What is operating system.

Ans:An operating system is system software that manages computer hardware and software

resources and provides common services for computer programs.

17. What is multi user operating system.

Ans:Multi-user software is software that allows access bymultiple users of a computer. Timesharing systemsare multi-user systems. Most batch processingsystems for mainframe

computers may also be considered "multi-user", to avoid leaving the CPU idle while it waits

for I/O operations to complete.

18. What is time sharing operating system.

Ans:Time-sharing is a technique which enables many people, located at various terminals, to use a particular computer system at the same time. Time-sharing or multitasking is a logical

extension of multiprogramming. Processor's time which is shared among multiple users simultaneously is termed as time-sharing.

19. What is task bar.

Ans:A bar located at the bottom of the screen first introduced with Microsoft Windows 95 and

found in all the versions of Windows that followed. The taskbarallows you to locate and

launch programs through the Start button or view any program that is currently open.

20. What is window ? explain types of window.

Ans:window. A window is a separate viewing area on a computer display screen in a system

that allows multiple viewing areas as part of a graphical user interface ( GUI ). Windows are

managed by a windows manager as part of a windowing system . A window can usually be

resized by the user.What is clipboard ?

MS-DOS - Microsoft Disk Operating System (1981) ...

Windows 1.0 – 2.0 (1985-1992) ...

Windows 3.0 – 3.1 (1990–1994) ...

Windows 95 (August 1995) ...

Windows 98 (June 1998) ...

Windows ME - Millennium Edition (September 2000) ...

Windows NT 31. ...

Windows 2000 (February 2000)

21. What is recycle bin?

Ans:When you delete a file or folder in Windows, it is placed in the Recycle Bin. Items are

temporarily stored in the Recycle Bin before they are permanently deleted by the user.

The Recycle Bin is located on the Windows desktop. ... You can also select items individually

and restore them back to their previous folders.

22. What is LAN?

Ans:A local area network is a computer network that interconnects computers within a limited area such as a residence, school, laboratory, university campus or office building. By contrast, a wide area network not only covers a larger geographic distance, but also generally involves leased telecommunication circuits

23. What is MAN?

Ans:A metropolitan area network is a computer network that interconnects users with computer resources in a geographic area or region larger than that covered by even a large local area network but smaller than the area covered by a wide area network.

24. What is WAN?

Ans:A wide area network is a telecommunications network or computer network that extends over a large geographical distance/place. Wide area networks are often established with leased telecommunication circuits.

25. What is topology?

Ans:Network topology is the arrangement of the elements of a communication network. Network topology is the topological structure of a network and may be depicted physically or logically.

26. What is modem?

Ans: A modem is a network hardware device that modulates one or more carrier wave signals to encode digital information for transmission and demodulates signals to decode the transmitted information. The goal is to produce a signal that can be transmitted easily and decoded to reproduce the original digital data

27. Give types of data transmission.

Ans:

Full-duplex.

Half-duplex.

Point-to-point.

Simplex.

28. What is Bluetooth?

Ans:Bluetooth is a wireless technology standard for exchanging data over short distances from

fixed and mobile devices, and building personal area networks

29. Give comparison of serial and parallel data transmission.

30. What are the data transmission media?

Ans:With guided transmission media, the waves are guided along a physical path; examples of

guidedmedia include phone lines, twisted pair cables, coaxial cables, and optical fibers.

Unguidedtransmission media are methods that allow thetransmission of data without the use

of physical means to define the path it takes.

31. What is baudrate and bandwidth?

Ans:In telecommunication and electronics, baud is a common measure of symbol rate, one of the components that determine the speed of communication over a data channel. It is the unit for symbol rate or modulation rate in symbols per second or pulses per second.In computing, bandwidth is the maximum rate of data transfer across a given path. Bandwidth may be characterized as network bandwidth, data bandwidth, or digital bandwidth.

32. Differentiate between analog and digital transmission.

34. What is URL?

Ans:A Uniform Resource Locator, colloquially termed a web address, is a reference to a web

resource that specifies its location on a computer network and a mechanism for retrieving it. A

URL is a specific type of Uniform Resource Identifier, although many people use the two

terms interchangeably.

35. What is email?

Ans:Electronic mail is a method of exchanging messages between people using electronic

devices. Invented by Ray Tomlinson, email first entered limited use in the 1960s and by the

mid-1970s had taken the form now recognized as email. Email operates across computer

networks, which today is primarily the Internet

36. What is the procedure of inserting Symbols in an MS Word document?

Ans:

Ans: Open the MS Word → Click the Insert tab →Click Symbols and select “more symbols”

→Select desired symbols and click Insert button.

37. How can you add automatic page numbering in the header of an Ms Word document?

Ans: You can insert automatic page numbering into a tab and from header &footer. Click on

the insert tab and from the header and footer section click on the header icon.

38. What is the slide show View in Ms power point?

Ans: The slide show view fill the whole screen and we can advance to the next slide by

clicking the mouse button. It is the view that is used for presentation.

39. What dose ‘Drag & Drop’ mean?

Answer: The concept of selecting an item and then moving it while keeping the mouse button

pressed is often called ‘dragging’ or ‘Drag and drop’. It is called because we drag an item

from the old location, and drop it at the new location.

40. How can you customize your Desktop?

Ans: We can customize our desktop from start->control panel->personalization. We can

select wallpaper, resolution, screen server etc.

41. Discuss about various types of drives?

Ans: Floppy Disk Drives, CD /DVD-ROM Drives, PATA Hard Drives, Zip Drives, Flash Drives,

SATA Hard Drives.

42. What are the uses of Header and Footer in MS Word?

Ans: Header and footer are used to add common attributes of a file such as page number,

date/time, filename with path, module name, section name, author name etc.

43. How can you correct the spelling and grammatical mistakes in MS Word?

Ans: We might want to use automatic spelling and grammar checking (the wavy red, blue,

and green lines) to keep mistakes to a minimum while we work. Keyboard shortcut: F7.

44. How do you format text, change font, and font size?

Ans: To format text, in the Font group on the Home tab, click the Bold, Italic or Underline

button. To change the font and font size click on the toolbar. Click the Font arrow to display a

list of available fonts. Then click the Font Size arrow to select the size.

45. How do you create a new presentation?

Ans: You would click the Office button to open the File menu and choose New to display the

New Presentation window. Double-click Blank Presentation to open a new presentation based

on the blank template.

46. How do you apply a transition to a slide?

Ans:Select the slide you wish to modify. Click on the Transitions tab. Locate the preferred

transition type to apply. Click on the transition to apply it to the selected slide.

47. How do you save a document in Microsoft Word?

Ans:To save a document for the first time, you can press Ctrl+S, click the Save button on the

Quick Access toolbar, or click Save on the File tab. All three options display a dialog box in

which you specify a name for the document.

48. What are computer files?

Ans: A computer file is a block of arbitrary information, or resource for storing information,

which is available to a computer program and is usually based on some kind of durable

storage.

49. What is file compression? What are the benefits of file compression?

Ans: File compression lets you make the size of files smaller.This is useful when you need to save space on a disk or when you are sending a file as an email attachment and you want to keep the size of your attachments as small as possible.

50. How can you insert a picture (available as file in the computer) in a MS Word document?

Ans: Insert Tab -> click picture button -> Select a picture -> click INSERT button.

51. What is chart in MS Excel? Name three types of charts?

Ans: charts present data in a visual way that makes it easier to see the meaning behind the

numbers.

1. Column chart

2. Line chart

3. Bar chart

52. What are the full forms of the abbreviations: HTTP, FTP, WWW ?

Ans:HTTP: Hyper Text Transfer Protocol.

FTP: File Transfer Protocol.

WWW: World Wide Web.