About Computer

What Is Computer:-

 Computer Is a Advanced Electronic Device .World All Information See This Device.And Connect To All Man In The World. That Take Raw Data as Input From The User and Process These Data Under The Control Of Set Of Instruction,and Give The Result(Output) and Saves Output For The Future User.

CLASSIFICATION OF COMPUTERS:-

Computer Are Classified According To Their Data Processing Speed,Amount Of Data That They Can Hold And Process.Depending Upon Their Speed And Memory Size,Computers Are Classified Into Following Four Your Main Groups.

INTRODUCTION:-

We Are Living In The Page Of Computer. Most Of Our Daily Activities Are Being Influenced By The Use Of Computers.IT And Computers Have Become And Integral Part Of Our Lives.
A Computer Is An Automatic Electronic Matchine That Converts Raw Data Into Useful Information With The Help Of Certain Instructions. These  Instructions Are Issued In From Of A Program.
A Program Is a Sequence Of Instructions,Written In a Specific Computer Language, Which Operates On Data To Perform a Certain Task.

Using Speech Recognition

Windows Speech Recognition makes using a keyboard and mouse optional. You can control your PC with your voice and dictate text instead.

Note

Speech Recognition is only available for the following languages:

English (United States and United Kingdom), French, German, Japanese, Korean, Mandarin (Chinese Simplified and Chinese Traditional), and Spanish.

Show all

Set up Speech Recognition

There are a few steps you need to take before you can start using Speech Recognition. First, you’ll need to set up a microphone. Next, it’s a good idea to take the tutorial to learn how to use Speech Recognition effectively. Finally, you can train your PC to recognize your voice.

To set up a microphone

Before you set up Speech Recognition, make sure you've plugged the microphone into your PC so the following steps work.

1. Swipe in from the right edge of the screen, and then tap Search.
   (If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, and then click Search.)
2. Enter set up a microphone in the search box, and then tap or click Set up a microphone.
3. Follow the instructions on the screen.

Note

If possible, use a headset microphone; it's less likely to pick up background noise.

To take the tutorial

The tutorial that comes with Speech Recognition takes about 30 minutes to complete, and it’s a good use of time. It teaches you the voice commands used in Speech Recognition.

1. Swipe in from the right edge of the screen, and then tap Search.
   (If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, and then click Search.)
2. Enter speech recognition in the search box, and then tap or click Speech Recognition.
3. Tap or click Take Speech Tutorial.
4. Follow the instructions in the Speech Recognition Tutorial.

To Train your PC to recognize your speech

Speech Recognition uses a special voice profile to recognize your voice and spoken commands. The more you use Speech Recognition, the more detailed your voice profile becomes—and that should improve your PC's ability to understand you.

1. Swipe in from the right edge of the screen, and then tap Search.
   (If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, and then click Search.)
2. Enter speech recognition in the search box, and then tap or click Speech Recognition.
3. Tap or click Train your computer to better understand you.
4. Follow the instructions in the Speech Recognition Voice Training.

Using Speech Recognition

You can use your voice for many tasks, such as filling out online forms or typing letters. When you speak into the microphone, Speech Recognition transforms your voice into text on the screen.

To dictate text using Speech Recognition

1. Swipe in from the right edge of the screen, and then tap Search.
   (If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, and then click Search.)
2. Enter speech recognition in the search box, and then tap or click Windows Speech Recognition.
3. Say "start listening," or tap or click the microphone button to start the listening mode.
4. Open the app you want to use, or select the text box you want to dictate text into.
5. Say the text you want to dictate.

To correct mistakes

You can correct mistakes in three different ways.

1. To correct the last thing you said, say "correct that."
2. To correct a single word, say "correct" followed by the word that you want to correct. If the word appears more than once, all instances will be highlighted, and you can choose the one you want to correct.
3. In the Alternates panel dialog box, say the number next to the item you want, and then say "OK."

To add or change words in the Speech Dictionary

Using the Speech Dictionary, you can add your own words, stop a specific word from being dictated, or correct or delete a word in the dictionary.

1. Swipe in from the right edge of the screen, and then tap Search.
   (If you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, and then click Search.)
2. Enter speech recognition in the search box, and then tap or click Windows Speech Recognition.
3. Say "start listening," or tap or click the microphone button to start the listening mode.
4. Say "open Speech Dictionary" and do any of the following:
   • 
     
   • 
     
   • To add a word to the dictionary, say "Add a new word," and then follow the instructions.
   • To prevent a specific word from being dictated, say "Prevent a word from being dictated," and then follow the instructions.

Controlling your PC with Speech Recognition

You can use simple, short commands to control your PC. The following table shows some of the most commonly used Speech Recognition commands. Words that look like this indicate that you can replace the example word or phrase with similar words and get useful results.

Note

Any time you need to find out what commands to use, say "what can I say?"

To do this	Say this
Select any item by its name	Click File; Start; View
Select any item or icon	Click Recycle Bin; Click Computer; Click file name
Double tap or double-click any item	Double-click Recycle Bin; Double-click Computer; Double-click file name
Switch to an open app	Switch to Paint; Switch to WordPad; Switch to program name; Switch application
Scroll in one direction	Scroll up; Scroll down; Scroll left; Scroll right
Insert a new paragraph or new line in a document	New paragraph; New line
Select a word in a document	Select word
Select a word so you can correct it	Correct word
Select and delete specific words	Delete word
Show a list of applicable commands	What can I say?
Update the list of speech commands that are currently available	Refresh speech commands
Turn on listening mode	Start listening
Turn off listening mode	Stop listening
Move the Speech Recognition microphone bar	Move speech recognition
Minimize the microphone bar	Minimize speech recognition
View Windows Help and Support content about specific tasks	How do I do something? For example, say “How do I install a printer?” and a list of Help topics is returned. Note that this command is available only if you're using the U.S. English Speech Recognizer.

Dictation

To do this	Say this
Insert a new line in the document	New line
Insert a new paragraph in the document	New paragraph
Insert a tab	Tab
Insert the literal word for the next command (for example, you can insert the word "comma" instead of the punctuation mark)	Literal word
Insert the numeral form of a number	Numeral number
Put the cursor before a specific word	Go to word
Put the cursor after a specific word	Go after word
Don't insert a space before the next word	No space
Go to the start of the sentence that the cursor is in	Go to start of sentence
Go to the start of the paragraph that the cursor is in	Go to start of paragraph
Go to the start of the document	Go to start of document
Go to the end of the sentence that the cursor is in	Go to end of sentence
Go to the end of the paragraph that the cursor is in	Go to end of paragraph
Go to the end of the current document	Go to end of document
Select the word in the current document	Select word
Select the word range in the current document	Select word range; Select word through word
Select all text in the current document	Select all
Select a number of words before the location of the cursor	Select previous 20 words; Select previous 10 words
Select a number of words after the location of the cursor	Select next 20 words; Select next 10 words
Select the last text you dictated	Select that
Clear the selection on the screen	Clear selection
Capitalize the first letter of the word	Caps word
Capitalize all the letters of the word	All caps word
Make all the letters in the word lowercase	No caps word
Change the next number of words to uppercase	Change next 10 words to uppercase
Change the next number of words to lowercase	Change next 10 words to lowercase
Delete the previous sentence	Delete previous sentence
Delete the next sentence	Delete next sentence
Delete the previous paragraph	Delete previous paragraph
Delete the next paragraph	Delete next paragraph
Keyboard keys To do this Say this Press any key on the keyboard Press keyboard key; Press a; Press capital b; Press Shift plus a; Press Ctrl plus a Press certain keyboard keys without saying "press" first Delete; Backspace; Enter; Page Up; Page Down; Home; End; Tab Notes You can also use the ICAO\NATO phonetic alphabet to say the keyboard keys to press. For example, you can say "press alpha" to press "a" or "press bravo" to press "b." Using Speech Recognition to press keyboard keys works only with languages that use Latin alphabets. Punctuation marks and special characters  To insert this Say this                                                    , Comma                                                    ; Semicolon                                                     . Period; Dot; Decimal point                                                    : Colon                                                   “     Open double quote; Open quote                                                   ” Close double quote; Close quote; Close inverted commas                                                   ' Apostrophe                                                   ‘ Open single quote                                                   ’ Close single quote                                                  > Greater than sign                                                  < Less than sign                                                  / Forward slash                                                 \ Backslash                                                 ~ Tilde                                                @ At sign                                                 ! Exclamation mark; Exclamation point                                                ? Question mark                                                # Number sign; Pound sign                                                $ Dollar sign                                               % Percent sign                                                ^ Caret                                                ( Open parenthesis; Open paren                                                ) Close parenthesis; Close paren                                                _ Underscore                                               - Hyphen; Minus sign; Dash                                               – En dash                                               — Em dash                                               = Equal sign                                                + Plus sign                                               { Open brace; Open curly bracket                                                } Close brace; Close curly bracket                                                [ Open bracket; Open square bracket                                                ] Close bracket; Close square bracket                                                | Vertical bar                                              :- ) Smiley face                                              :-( Frowny face                                              ;-) Winky face                                              ™ Trademark sign                                               ¾ Three quarter sign                                               ¼ One quarter sign                                               ½ One half sign                                               £ Pound sterling sign                                              & Ampersand; And sign                                               * Asterisk                                               // Double slash                                               ` Back quote                                              < Open angle bracket                                             > Close angle bracket                                             ± Plus or minus sign                                           « Open angle quote                                            » Close angle quote                                           × Multiplication sign                                           ÷ Division sign                                           ¢ Cent sign                                          ¥ Yen sign                                           § Section sign                                          © Copyright sign                                          ® Registered sign, Registered trademark sign                                           ° Degree sign                                         ¶ Paragraph sign … Ellipsis; Dot dot dot Windows commands To do this Say this Select any item by saying its name File; Edit; View; Save Select any item Click File; Click Bold; Click Save; Click Close Double-tap or double-click any item Double-click Computer; Double-click Recycle Bin; Double-click folder name Press and hold or right-click any item Right-click Computer; Right-click Recycle Bin; Right-click folder name Minimize all windows to show your desktop Show desktop Select something if you don't know what it's called Show numbers (Numbers will appear on the screen for every item in the active window. Say an item's corresponding number to select it.) Select a numbered item 19 OK; 5 OK Double-tap or double-click a numbered item Double-click 19; Double-click 5 Press and hold or right-click a  Working with windows and apps To do this Say This Open an app Open Paint; Open WordPad; Open app name Switch to an open app Switch to Paint; Switch to WordPad; Switch to app name; Switch application Close an app Close that; Close Paint; Close Documents Minimize Minimize that; Minimize Paint; Minimize Documents Maximize Maximize that; Maximize Paint; Maximize Documents Restore Restore that; Restore Paint; Restore Documents Cut Cut that; Cut Copy Copy that; Copy Paste Paste Delete Delete that; Delete Undo Undo that; Scratch that; Undo Scroll in one direction Scroll up; Scroll down; Scroll right; Scroll left Scroll an exact distance in pages Scroll down 2 pages; Scroll up 10 pages Scroll an exact distance in other units Scroll up 5; Scroll down 7 Go to a field in a form or an app Go to field name; Go to Subject; Go to Address; Go to cc Tap or click anywhere on the screen To do this Say This Show the mousegrid Mousegrid Move the mouse pointer to the center of any mousegrid square Number of the square; 1, 7, 9 Tap or click any mousegrid square Click number of the square Select an item to drag with the mousegrid Number of the square where the item appears; 3, 7, 9 (followed by) mark Select an area in the mousegrid where you want to drag the item Number of the square where you want to drag; 4, 5, 6 (followed by) click Right-click 19; Right-click 5