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Wednesday, March 17, 2021

Input and Output Devices of Computer

Input Devices


-:  Key Board  :-

The keyboard acts as an input device. The keyboard has 101 or 114 keys. The keyboard translates information to the computer into the language of the computer and sends it to the computer.

-:  Mouse  :-

The mouse is also an input device. There are mainly three buttons on the mouse. 1. Left side 2. Right side 3. Scrolling button. With the help of mouse you can easily reach anywhere on the computer screen. It is a Pointing Devices. The main principal it work on point and click.

-:  Scanner  :-

Using this scanner device, you can scan your photos or documents and create a digital image on a computer.

-:  Touch Screen  :-

This type of screen is used in devices like mobile, tablet or ATM devices

-:  Joystick  :-

The joystick is a device you use to play computer games. With the help of the buttons on the joystick, we work to direct the computer.


-:  Microphone  :-

Microphone is an input device to input sound that is then stored in a digital form in computer. You can store voice data in the computer by speaking in front of this device.




Out-Put Devices 

-:  Monitor  :-

The monitor in a computer is called a Visual Display Unit (VDU). This is an output device. Nowadays flat monitors or LCD / LED monitors are used. The monitor works to show you both input and output.

-:  Printer  :-

The tools used to print computer generated documents or information retrieved from the Internet on paper are called printers. Printed text is called hard copy. There are many types of printers.

  • Dot Matrix Printer, Laser Printer, Inkjet Printer, Plotter

-:  Speaker  :-

A speaker is an external device that allows you to hear video or audio playing on a computer, so it is called an output device.

-:  Projector  :-

A Projector is an output device that take display generated by a computer or Laptop and projects the same information onto a Screen or Wall.





Saturday, March 13, 2021

Internet & E-mail Theory Question 2

 Internet & E-mail Theory 

Pratice Question & Answer 



1)    DNS चा लॉंगफॉर्म ............. हा आहे.            

        (a)   Domain Name system

        (b)   Domain name Structure

        (c)   Domain Number system

        (d)   यापैकी एकही नाही


         ANS - a


 2)    ….......... मध्ये delete केलेल्या -मेल असतात  

        (a)   Sent mail

        (b)   Spam

        (c)   Trash

        (d)   Compose


         ANS - c


 3)     FDD चा लॉंगफॉर्म ............. हा आहे.                  

        (a)   File Disk Drive

        (b)   Floppy Disk Drive

        (c)   Floppy Disk Data

        (d)   File Disk Data


         ANS -  b


4)     सर्व web site चा address ….............. ने सुरू होतो.                

        (a)   SMTP://

        (b)   HTML://

        (c)   HTTP://

        (d)   FTP://


         ANS - c


5)     E-mail मधील CC चा म्हणजे काय.                 

        (a)   Carbon copy

        (b)   Clean copy

        (c)   Clear copy

        (d)   वरील पैकी एकही नाही


         ANS - a


6)    Digital signal पाठवण्यासाठी कॉम्प्युटर 0, 1 अशी भाषा वापरतो            

        (a)   बरोबर

        (b)   चूक

  

         ANS - a


7)    Gmail मध्ये आलेले massage कुठे दिसतात             

        (a)   SPAM

        (b)   TRASH

        (c)   INBOX

        (d)   SENT MAIL


         ANS - c


8)     Internet मध्ये IP म्हणजे काय              

        (a)   Internet Procedure

        (b)   Internet Processor

        (c)   Intranet Provider

        (d)   Internet Provider


         ANS - d


9)     E-mail च्या शेवटच्या भागास ........... असे म्हणतात            

        (a)   Domain Name

        (b)   User Name

        (c)   Domain Code

        (d)   Domain Address


         ANS - c


10)   F5 या key चा वापर इंटरनेट वर .......... साठी होतो.                   

        (a)   Refresh

        (b)   Stop

        (c)   Backward

        (d)   Froward


         ANS - a