Why computer or typewriter have qwerty keyboard instead of having abc keyboard?

The story goes this way:...............

1) An alphabetic arrangement would overwork some fingers and underwork others, resulting in typing being more tiring. The QWERTY arrangement puts the most-commonly used letters by the strongest fingers. Notice how spread out the most common letters are? Look at 'etaion' on a QWERTY keyboard.

2) An alphabetic arrangement would use the same hand too many times in a row, preventing you from setting up one hand while the other is typing. It's much faster to type two letters on different hands than two letters on the same hand. The QWERTY arrangement takes the most common two-letter sequences and puts one letter on one hand and one on the other. (For example 'an', 'le', 'ie', and so on.)

3) An alphabetic arrangement would use the same finger twice in a row too often, wasting time as you move a finger rather than setting up one finger while another is typing. The QWERTY arrangement breaks up even less common letter sequences so they're not on the same finger. ('nw', 'ce', and so on.)

4) An alphabetic arrangement would require more vertical motion of the fingers. For example, if you look at a QWERTY arrangement, you'll see that the hardest to type sequences due to vertical motion are sequences almost never used in English. (For example, 'wx', 'oq', 'sw', and so on.)

Qualities of a good Software Test Engineer:

• Has “test to break” attitude
• An ability to take the point of view of the customer
• A strong desire for quality
• Knowledge on helping tools needed for testing. 
• Should be tactful & diplomatic and should be able to maintaining a cooperative relationship
• An ability to communicate with both technical and non-technical people is useful.
• An understanding of software development process is helpful.
• There's never enough time to test "completely", so all software testing is a compromise
• A tester must have deep insights into how the users will exploit the program's i.e. domain knowledge.
• Good testers notice little things that miss or ignore.
• An ideal tester should not take anything as granted.
• Testers should not have habit to report bugs / defects publicly. This attitude hurts the developers.
• Good Judgment skills are needed to assess high-risk areas of an application.
• Communication skills and the ability to understand various sides of an issue.
• Knowledge of development.  

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Qualities of a good Team Leader

   -  Has Personal Integrity Deals Honestly and Gains Trust

   - Is Kind-hearted Generous and Giving; Serves Others

   - Strives for Excellence Always; Is a Transparent Influence

   -  Has Clear Long Vision; Executes First Things First; Inspires Others to Action

   - Is Positive Enthusiastic Committed; Has Focus-ability

   - Is Solution-oriented Creative; Makes Top Management Efficient; Empowers Others

   -  Is A Catalyst; Creates Pygmalion Effect; Fosters Self Motivation

   - Is a Good Communicator; A Great Negotiator; Nurtures Relationships

   - Balances Confidence with Caution; Adapts Management Styles for War & Peace

   - Rejuvenates Self; Sharpens his axe; Transforms his Strengths into Talents

 

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Rename or change extension type of multiple files under Windows OS

-Navigate to folder using command prompt
cd "c\test"
-type command
rename *.doc *.txt
-hit enter key from keyboard

* It will change the extension type of all the .doc files present in "test" folder to .txt.

Host File in Windows and Mac

• Edit Host file in Mac OS:

-Open Terminal and type the command:  sudo nano /private/etc/hosts

And press Enter key.

Type your user password when prompted.

 – Edit the hosts file. The hosts file contains some comments (lines starting with the # symbol), as well as some default hostname mappings (e.g. 127.0.0.1 – localhost).
You can navigate the file using the arrow keys.

– Save the hosts file. When done editing the hosts file, press control-o to save the file.
Press enter on the filename prompt, and control-x to exit the editor.

• Edit Host File in Windows:

-Navigate to folder “C:\Windows\System32\drivers\etc”. Host file is displayed there.

-Right click on Host file and select “Send to Desktop”.

-Open Host file, edit and save “CTRL+S”.

Note: Make sure in Win 7, UAC (User Account Control) is disabled, otherwise host file is not editable.

To disable USA, navigate to “Control Panel\User Accounts\User Accounts”

Now open “User Accounts” and then click on “Change User Account Control Settings”. Set the Notification level to lowest (near to Never notify) and click “OK” button. To update settings, you need to restart the machine.