What is a Flowchart?

A flowchart is a diagram that represents a process or algorithm. The steps are represented by a series of boxes or other specialized symbols, then connected with arrows. A flowchart is a formalized graphic representation of a logic sequence, work or manufacturing process, organization chart, or similar formalized structure. The purpose of a flow chart is to provide people with a common language or reference point when dealing with a project or process.
Flowcharts use simple geometric symbols and arrows to define relationships. In programming, for instance, the beginning or end of a program is represented by an oval.  A process is represented by a rectangle, a decision is represented by a diamond and an I/O process is represented by a parallelogram. The Internet is represented by a cloud. 
What is a Flowchart - Flowchart Tutorial
Flow charting allows you to break down any process into bite-sized sections and display them in shorthand form. That way, your audience can easily see the logical flow and relationships between steps.
Flowcharts are an important tool across various industries and careers, since they’re a clear, concise method of displaying information. Plus, flowcharts can convey data in a visually pleasing way, so your work looks professional and communicates its information effectively.
Flowcharts are ideal for communicating a step-by-step process to others. You may also want to create a flowchart if you’re confused about the process; the act of mapping out the steps in flow chart format can clarify your own understanding. When a process is particularly complex, flowcharts allow you to focus intently on each step or element, so you don’t get overwhelmed by the bigger picture.
Drawing a flow chart might be helpful when:
  • Defining, analyzing, or discussing a process (or a set of processes).
  • Drawing a step-by-step picture of the process for your own or others’ understanding.
  • Standardizing or finding areas for improvement in a process.

10 Best Programming Languages of 2015

1. Java
Java is considered as the perfect language for the developers and programmers to learn. Currently it is the top-most programming language and has grabbed the highest position with Android OS yet again, though it was a bit down a few years ago. Java can be utilized for mobile-based applications, enterprise level purpose, for creating desktop applications, and for establishing Android apps on tablets and smartphones.

2. PHP
The web developers should learn about PHP or Hypertext Preprocessor, a well-known programming language. With the help of PHP, you can enlarge a web app very quickly and effortlessly. PHP is the actual foundation of many strong content management systems, for example, WordPress. PHP is really a valuable programming language for the developers and programmers.

3. JavaScript
While you are expanding your site, JavaScript is extremely functional as this language can immensely assist you in generating communication for your website. You can utilize various in style frameworks in JavaScript for constructing superb user interface. When you’re into web development, it’s very important to known about JavaScript for making interactive web pages. JavaScript is applied for including animations on the web pages, loading fresh images, scripts or objects on web page, and craft hugely responsive user interfaces.

4. Python
For becoming skilled at all-in-one language, you should begin learning Python language that has the ability to expand web apps, data analysis, user interfaces, and many more, and frameworks are also available for these tasks. Python is utilized by bigger companies mostly that can evaluate vast data sets, thus this is a huge chance to learn it and be a Python programmer.

5. Objective-C
If you are the one who is interested on constructing apps for iOS, then you have to know about Objective-C language efficiently. The most preferred choice for all the web developers is Objective-C. When you have learnt Objective-C, you can begin applying XCode that is known to be the authorized software development tool from Apple. Thus you can quickly produce iOS app that can be noticeable in App Store.

6. Ruby
Another popular programming language is Ruby and Ruby on Rails. This can be learnt easily, and also very strong and clear-cut. If you’ve small time in hand and still want to craft any project, then you can surely utilize Ruby language. This programming language is applied massively for web programming, and hence turned out to be the ideal selection for the beginner companies.

7. Perl
Perl is also a well-accepted programming language that offers distinct tools for various obscure setbacks such as system programming. Though this programming language is a bit puzzling, but it is really a strong one that you can learn for this year, and renew your knowledge. Perl is mainly used for sites and web app expansion, desktop app development and system administration, and test automation that can be applied for testing databases, web apps, networking devices, and many more.

8. C, C++ and C#
You can increase your knowledge by learning about C this year that is unique programming language. Being the oldest, it should be learnt firstly when you start up, and it is mainly applied in forming different softwares.

C++ or C plus plus is a bit more progressive than C, and utilized immensely in forming hardware speeded games. It is an ideal selection for strong desktop software as well as apps for mobiles and desktop. Known to be the strongest language, C++ is applied in vital operating systems, such as Windows.

After learning these 2, you can go ahead in knowing about C# language. It won’t be difficult for you to get accustomed with C# after knowing C and C++. C# is actually the prime language for Microsoft applications and services. While executing with .Net and ASP technologies, you are required to be familiar with the C# accurately.

9. SQL
When you are executing on databases such as Microsoft SQL server, Oracle, MySQL, etc, you should be aware of SQL programming language or Standard Query Language. From this language, you can achieve the proficiency of acquiring the needed data from big and multifaceted databases.

10. Swift
Swift is reflected upon as the trendiest program language for expanding apps for Apple products. This language can be utilized by you for building up apps for iOS activated devices and Apple’s MAC in quick and simple method. When you are keen to expand a superb iOS application, then it is better for you to gain knowledge of Swift programming language.

Dual In-line Memory Module - DIMM

Dual In-line Memory Module, DIMM is a module containing a circuit board and one more random access memory chips.

DIMMs have a 168-pin connector and, since the advent of the Pentium Processor, a 64-bit path. Because of the new bit path, DIMMs can be installed one at a time, unlike SIMMs that would require installation in pairs.

SO-DIMM, which is short for Small Outline DIMM, is available in both a 72-pin and 144-pin configuration. SO-DIMMs are commonly utilized in laptop computers. Below is an example picture of a 4GB SODIMM memory stick from Crucial.

Advantages DIMMs have over SIMMs

DIMMs have separate contacts on each side of the board, which provides twice as much data as a single SIMM.
The command address and control signals are buffered on the DIMMs. With heavy memory requirements, this buffering reduces the loading effort of the memory.






Best laptops to buy in India

List of the best laptops in India for 2016 with a good blend of performance and features at every price point. According to http://www.digit.in Top 10 laptop include the best picks across budget laptops, mainstream laptops, ultrabooks, and business laptops. 

These are the best laptops to buy in India across various price segments.

Click here to check out the detials: Top 10 laptops



** Courtesy - digit.in

Power-Protection Systems

Backup Power

Power protection includes backup power-protection devices. These units can provide power in case of a complete blackout, thereby providing the time necessary for an orderly system shutdown. Two types are available: the SPS and the uninterruptible power supply (UPS). The UPS is a special device because it does much more than just provide backup power; it is also the best kind of line conditioner you can buy.

Standby Power Supplies

A standby power supply is known as an offline device: It functions only when normal power is disrupted. An SPS system uses a special circuit that can sense the AC line current. If the sensor detects a loss of power on the line, the system quickly switches over to a standby battery and power inverter. The power inverter converts the battery power to 120 V AC power, which is then supplied to the system.

For a stand-by (switching) type UPS to work, the hold-up time of the power supply has to be longer than the switching time of the UPS.
A truly outstanding SPS adds to the circuit a ferroresonant transformer, which is a large transformer with the capability to store a small amount of power and deliver it during the switch time. This device functions as a buffer on the power line, giving the SPS almost uninterruptible capability.

UPSs

Perhaps the best overall solution to any power problem is to provide a power source that is conditioned and that can’t be interrupted—which is the definition of an uninterruptible power supply. UPSs are known as online systems because they continuously function and supply power to your computer systems. Because some companies advertise ferroresonant SPS devices as though they were UPS devices, many now use the term true UPS to describe a truly online system. A true UPS system is constructed in much the same way as an SPS system; however, because the computer is always operating from the battery, there is no switching circuit.


Extensible Markup Language (XML)


Extensible Markup Language (XML) is a markup language that defines a set of rules for encoding documents in a format which is both human-readable and machine-readable.
XML is a software- and hardware-independent tool for storing and transporting data.

XML plays an important role in many IT systems.

For this reason, it is important for all software developers to have a good understanding of XML.
Before you continue, you should also have a basic understanding of:
  • HTML
  • JavaScript

What is XML?

  • XML stands for EXtensible Markup Language
  • XML is a markup language much like HTML
  • XML was designed to store and transport data
  • XML was designed to be self-descriptive
  • XML is a W3C Recommendation

XML Does Not DO Anything

Maybe it is a little hard to understand, but XML does not DO anything.
This note is a note to Jack, from Jill, stored as XML:
<note>
  <to>Jack</to>
  <from>Jill</from>
  <heading>Reminder</heading>
  <body>Don't forget me this weekend!</body>
</note>
The note is quite self-descriptive. It has sender and receiver information. It also has a heading and a message body.
But still, this XML document does not DO anything. XML is just information wrapped in tags. Someone must write a piece of software to send, receive, store, or display it:

Note

To: Jack
From: Jill

Reminder

Don't forget me this weekend!

The Difference Between XML and HTML

XML and HTML were designed with different goals:
  • XML was designed to carry data - with focus on what data is
  • HTML was designed to display data - with focus on how data looks
  • XML tags are not predefined like HTML tags are

XML Does Not Use Predefined Tags

The XML language has no predefined tags.
The tags in the example above (like and ) are not defined in any XML standard. These tags are "invented" by the author of the XML document.
HTML works with predefined tags like p, h1, table, etc. 
With XML, the author must define both the tags and the document structure.

XML is Extensible

Most XML applications will work as expected even if new data is added (or removed).
Imagine an application designed to display the original version of note.xml ( ).

XML Simplifies Things

  • It simplifies data sharing
  • It simplifies data transport
  • It simplifies platform changes
  • It simplifies data availability
Many computer systems contain data in incompatible formats. Exchanging data between incompatible systems (or upgraded systems) is a time-consuming task for web developers. Large amounts of data must be converted, and incompatible data is often lost.
XML stores data in plain text format. This provides a software- and hardware-independent way of storing, transporting, and sharing data.
XML also makes it easier to expand or upgrade to new operating systems, new applications, or new browsers, without losing data.
With XML, data can be available to all kinds of "reading machines" like people, computers, voice machines, news feeds, etc.

XML is a W3C Recommendation
XML became a W3C Recommendation on February 10, 1998.