INPUT & OUTPUT DEVICES

Submitted to:-Ram K PaliwalAssist.Professor

Submitted by:-Ojas MaheshwariMBA D

CONTENTINPUT DEVICES• Keyboard

• Mouse

• Microphone

• Scanner

OUTPUT DEVICES• VDU (Visual Display Unit)

• Printer

• Plotter

INPUT DEVICES :

• An input device is any device that provides input to a computer. There are dozens of possible input devices, but the two most common ones are a keyboard mouse.

• Input devices convert the user’s action into digital electronic signal that can be processed by a computer. Without input devices, a user would not be able to feed instructions to a computer.

Mouse:

Mouse is a point and click input device with two or three buttons which controls the movement of the cursor or pointer on a display screen.

Its name is derived from its shape, which looks a bit like a mouse, its connecting wire that one can imagine to be the mouse's tail.

Types (a)Mechanical Mouse (b) Optical Mouse

Keyboard :

It is simply a set of typewriter like keys that allows us to enter the data into the computer. The keys in the keyboard are classified into 3 groups :

Alpha Numeric Keys Special keysPunctuation Keys

Microphone:

A microphone is a device that converts mechanical energy (Sound or wave) into electrical energy. Microphone is a part of everyday life. They are use in computer during the video conference call, chatting, etc.

Scanner :

Scanner is an input device. It is used to enter pictures, graphs and other documents in computer and allow saving in different formats.

MICR:Magnetic Ink character reader.Characters are printed using special Ink called Magnetic Ink. Ex- chequesMICR reads it by magnetizing the ink & by examining the shape of the character.

OUTPUT DEVICES :

• An output device is any piece of computer hardware equipment used to communicate the results of data processing carried out by an information processing system (such as a computer) to the outside world.

VDU (Visual Display Unit ) / Monitor Monitor or VDU( Visual Display Unit) is an output device used to display data and information. Picture on monitor is made up of thousands of tiny colored dots called Pixels. Types (a) CRT (b) LCD (c) LED Printer A printer is a device that prints text or illustrations on paper. Types (a)Impact (b)Non ImpactPlotter It is used to draw pictures on paper based on commands from a computer. Plotters differ

from printers in that they draw lines using a pen.

ROUNDQ.1 Speaker is which type of device?

1. Input Device2. Output Device3. Storage Device4. None of them

Q.2 What type of device is Web Camera?1. Input Device2. Output Device3. Storage Device4. All of them

Q.3 What type of device is scanner?1. Input Device2. Output Device3. Storage Device4. None of them

Q.4 One Terabyte is equal to?1. 1026 MB2. 1024 GB3. 1000 MB4. 1022 GB

ROUNDQ.5 Which one become the first Indian state to achieve 100 percent primary education ?

1. Kerala2. Uttarakhand3. Goa4. Tamil Nadu

Q.6 Which private sector bank has launched a service recently where customers can make transactions using just their voice as a means of authentication?

1. Axis2. ICICI3. HDFC4. SBI

Q.7 Which one is first search Engine?1. Google2. Yahoo3. Archie4. baidu

Q.8 Who wins the Best Actor award in Oscar 2016?

1. Johnny Depp2. Leonardo DiCaprio3. Brad Pitt4. Matt Damon