Top sites to follow for techies and web geek.

Command Prompt is a command line interpreter application available in most Windows operating systems.It is a input field in a text-based user interface screen for an operating system or program.It is also called Windows Command Processor but is also sometimes called the command shell or cmd prompt, or even referred to by its filename cmd.exe.

cmd is easy to use and you can perform many operations in it.Here are top tricks you must know. Before knowing the tricks lets see how to open cmd in windows 10.

1.Go to search the web and windows

2.Enter cmd and select it.

Now lets see some usefull cmd tricks.

1.Change the name of title bar.

You can give any title to cmd just give the command title and with it any title you want to give.

Ex:- >title xyz

2.Copying text in cmd.

You can’t copy paste by right clicking and then selecting copy paste this feature is not present in cmd.

a)First select the text

b)Then use keyboard shortcuts CTRL+C(copy) and CTRL+V(paste).

3.Opening command prompt inside a folder.

Suppose you want to execute a file in a folder what you will do is change the directory from command prompt well there is a trick that you can directly open command prompt inside a folder.

Go to desired folder.
Hold shift and right click and you will see an option open command window here click it and your are done.

4.Change the Looks.

Bored with default looks you can customize command prompt.

5.Check ip address.

You can find/check ip address of any website using command prompt just give the command nslookup xyz.com.

6.See PC drivers list.

You can see all the drivers that is installed in your system just give the command driverquery.

7.Scanning System files.

You can scan the system files using command prompt.It will scan and repair the files.Just type sfc/scannow.Scanning speed depends on your system speed.

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Turn your browser into Notepad.

download

Notepad is a simple text editor for Microsoft Windows and a basic text-editing program which enables computer users to create documents.We all need notepad to note down the things which we wanna use later but somethings while surfing net you found something you don’t need to save you just want to note it down . So here is the trick to turn your browser into notepad with simple one line code.

here is the code:-

data:text/html, <html contenteditable>

Just copy the code and paste it in browser’s URL bar and you are done!!!

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Mobile Tricks

Z(1)

A mobile phone that performs many of the functions of a computer, typically having a touchscreen interface, Internet access, and an operating system capable of running downloaded apps is known as smartphones. The world is going crazy about smartphones and in present scenario approx. 2.32 billion people use it. There are many such things about smartphones that most population doesn’t have the knowledge. Here you will find such tricks of smartphones that will helpful and will reduce your effort.

1.Extend battery life with low power mode.

If your phone is running on iOS9, go to Settings > Battery > Low Power Mode. By going into Low Power Mode, non-essential tasks are disabled, giving you up to FOUR more hours of battery life.

power

2.Back-up your data.

Sync and store all your important photos, media, contacts, and even text messages. Even in case you delete a photo or you reset your phone you can still recover all your important data.

backup

3.Aeroplane mode for speed charging.

Everyone wants their phone to charge quickly ,by putting it in aeroplane mode your mobile phone will charge quickly as it will use less battery life.

aero

4.Click pictures with volume button.

You can take photos using the volume buttons whilst in the camera phone.

5.Taking Screenshots

Sometimes we want to save the screen as it appears taking screen in smartphones is very easy though you can do it using various apps available on playstore but it can be done easily you just need to press two buttons same time i.e. power and volume down .

save

7.Download web images.

If you’ve seen one of those funny photographs on the internet, long-pressing on it lets you download it to your phone – and it’ll pop up in your Gallery for easy sharing.

8.Multiple Gmail accounts.

Android added support for multiple Gmail accounts. Add a new internet identity to your phone by opening the Gmail app, then pressing Menu > Accounts > Add Accounts.

gmail

9.Custom caller tone.

If you like talking to people, the same screen lets you allocate a specific custom ringtone to each caller stored in your Contacts directory.

10.Here are top 10 android codes that you can use.

download

To display IMEI Number *#06#
To display RAM Memory version *#*#3264#*#*
To display FTA SW version *#*#1111#*#*
To display FTA HW version *#*#2222#*#*
To display Touchscreen version *#*#2663#*#*
To test Bluetooth *#*#232331#*#*
To test secret GPS *#*#1472365#*#*
To launch Service Mode *#*#197328640#*#*
To Restore Factory Settings #*#7780#*#*
To Format phone *2767*3855#

11.Enable Developer Mode.

Navigate to Settings > About phone and tap on your phone’s build number seven times.A message will pop up saying “Congratulations, you are now a developer”.

develper

12.Hidden Game.

You can play games on your mobile by downloading but there is a hidden game that you can enjoy just go Settings > About phone and tap the device’s version number several times.Enjoy the game.

game

13.Plug mouse and keyboard to your phone.

You can plug mouse and keyboard to your device and use it like PC.

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Units of Computer Memory Measurements

What is the memory measurement unit of Computer?

You all know that a computer only understands the binary language.The information stored in the computer is in the form of 0`s and 1`s called bits.
In computing and telecommunications, a unit of information is the capacity of some standard data storage system or communication channel, used to measure the capacities of other systems and channels. In information theory, units of information are also used to measure the information contents or entropy of random variables.

The most common units are the bit, the capacity of a system which can exist in only two states, and the byte (or octet), which is equivalent to eight bits. Multiples of these units can be formed from these with the SI prefixes (power-of-ten prefixes) or the newer IEC binary prefixes (binary power prefixes). Information capacity is a dimensionless quantity.

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Your Own Web Server!

1.Installing Nodejs

nodejs1 nodejs2 nodejs3

2.open the link http-server. and scroll down and copy the code and paste in cmd

ALL SET NOW FOLLOW THE STEPS:-

1.open command prompt.

cmd1

cmd2

cmd3

cmd4

cmd6 cmd5

cmd7

Now copy the link http://xxx… and open in your browser.

server1

server2

server3

AND YOUR DONE!!!

ALL THE BEST!

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WHAT IS GITHUB?

What actually Github is , well according to wikipedia:-
GitHub is a web-based Git or version control repository and Internet hosting service. It offers all of the distributed version control and source code management (SCM) functionality of Git as well as adding its own features. It provides access control and several collaboration features such as bug tracking, feature requests, task management, and wikis for every project.
GitHub offers both plans for private and free repositories on the same account which are commonly used to host open-source software projects.

To understand GitHub, you must first have an understanding of Git. Git is an open-source version control system that was started by Linus Trovalds(Creator of Linux).
Git is easy to learn and has a tiny footprint with lightning fast performance. It outclasses SCM tools like Subversion, CVS, Perforce, and Clear Case with features like cheap local branching, convenient staging areas, and multiple workflows.

TO KNOW MORE ABOUT GIT DOWNLOAD PROGIT FROM EBOOKS.

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EBOOKS

progit

standard-c-library-reference

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Standard library header files in C++

Hello everyone we have seen Hello world program in C++

headerfiles

The first line of the program Hello World we can see its written #include.What is actually, well writing C/C++ program we need to write this.This is header file in C++.

In the C++ programming language, the C++ Standard Library is a collection of classes and functions, which are written in the core language and part of the C++ ISO Standard itself. The C++ Standard Library provides several generic containers, functions to utilize and manipulate these containers, function objects, generic strings and streams (including interactive and file I/O), support for some language features, and functions for everyday tasks such as finding the square root of a number. The C++ Standard Library also incorporates 18 headers of the ISO C90 C standard library ending with “.h”, but their use is deprecated. No other headers in the C++ Standard Library end in “.h”. Features of the C++ Standard Library are declared within the std namespace.

The C++ Standard Library is based upon conventions introduced by the Standard Template Library (STL), and has been influenced by research in generic programming and developers of the STL such as Alexander Stepanov and Meng Lee. Although the C++ Standard Library and the STL share many features, neither is a strict superset of the other.

A noteworthy feature of the C++ Standard Library is that it not only specifies the syntax and semantics of generic algorithms, but also places requirements on their performance.These performance requirements often correspond to a well-known algorithm, which is expected but not required to be used. In most cases this requires linear time O(n) or linearithmic time O(n log n), but in some cases higher bounds are allowed, such as quasilinear time O(n log² n) for stable sort (to allow in-place merge sort). Previously sorting was only required to take O(n log n) on average, allowing the use of quicksort, which is fast in practice but has poor worst-case performance, but introsort was introduced to allow both fast average performance and optimal worst-case complexity, and as of C++11, sorting is guaranteed to be at worst linearithmic. In other cases requirements remain laxer, such as selection, which is only required to be linear on average (as in quickselect), not requiring worst-case linear as in introselect.

The C++ Standard Library underwent ISO standardization as part of the C++ ISO Standardization effort, and is undergoing further work regarding standardization of expanded functionality.

Download Standard C++ Library Reference from EBOOKS

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