This document discusses virtual personal assistants (VPAs), including their hardware and software requirements, basic concepts, working principles, features, user interface, and future potential. VPAs use speech recognition to understand voice requests, natural language processing to understand text input, and artificial intelligence to learn from users and store information. They work by converting speech to text, analyzing the text, and interpreting commands. VPAs are portable, connect to the internet for more information, and will continue developing to exist across multiple devices and in more integrated ways in our lives.

2. CONTENTS :-

3. CONCLUSIONs :-
 Virtual personal assistants are very effectively way to
recognize your schedule. Now there are many smart
personal digital assistant applications available in
market for various device platforms.
 These new software application are performing really
well than PDA devices as they provided with all
resources of your smartophone.
 VPAs are more portable and you can use them
anytime. They also have lot of information than any
assistant as they are connected with internet.

4. INTRODUCTION :-
 A virtual assistant is a technology based on artificial
intelligence. The software uses a device’s microphone
to receive voice requests while the voice output takes
place at the speaker. But the most exciting thing happens
between these two actions.
 It is a combination of several different technologies: voice
recognition, voice analysis and language processing.
 It is completely developed using one of the most power
language python.

5. HARDWARE AND SOFTWARE REQUIREMENTS :-
 HARDWARE :-
 A phone with a touch screen interface.
 Phone ram should be of A minimum 512 MB.
 Internet connectivity.
 The phone should have USB debugging for development purposes.
 SOFTWARE :-
 Operating system should android 4.1/win 8.1/ ios 6 or higher.
 The kernel version should 3.0.16 or higher.
 Support of other basic application like map, calender, camera, web
connection, etc.

6. BASIS CONCEPTS USED :-
The working of virtual Assistant uses following principles:
 NATURAL LANGUAGE PROCESSING
To understand user`s speech input.
 AUTOMATIC SPEECH RECOGNITION
To understand command according to user`s input.
 ARTIFICIAL INTELLIGENCE
To learn things from user and to store all information about
behavior and relations of user
 INTEL PROCESS COMMUNITION
To get information from other software applications.

7. WORKING :-
 Any voice assistant basically consists of three layers :-
 Speech to text
 Text analyzing
 Interpret commands

8. WORKING :- THREE LAYER
 SPEECH TO TEXT :
A piece of software use that converts audio to text. It does not
understand just anything you might say.
 TEXT ANALYZING :
Converted text is just letters for computer.
A piece of software converts text to something that is
understandable for computer.
 INTERPRETS COMMANDS :
In this layer, that mapped computer command go to server
through internet.
A local recognizer communicate with server to judge whether
command best handle locally or not.

9. FEATURES :-
 Speaks naturally
 Communicate with surroundings and other objects.
 Grows
 Get smarter everyday
 Will entertain you

10. USER INTERFACE :-

11. VPAs IN FUTURE :-
 Next step will be two step back the physical hardware as far as possible
 With the intelligence of the VA existing in the cloud, getting pulled in,
and pushing its ways into our lives on multiple devices on our lives on
multiple devices on our bodies and in our offices, homes, and vehicles.
 Your VA will be continually prompting you with suggestions and taking
instructions, and will know more about you perhaps you do yourself.
 We can expect this device to be implanted and permanent

12. THANK YOU