Your PC speed depends on HARD_DRIVE speed.

Do you know HARD DRIVE actually controls half of the speed of your computer instead of RAM and Processor ?

When you going to buy a brand new computer, the seller would not tell you about the RAM, that how gigabytes the ram is or he may tell you about the processor of the computer that how much it is advanced, he will also tell you about the space capacity of the hard drive BUT he would not tell you about the speed of the hard drive. 

IS HARD DRIVE RESPONSIBLE FOR THE SPEED OF COMPUTER ?

YES,  it is very necessary to test hard drive before you buy a computer. Because when you work on your computer, enter and output data to information and information to data, the processor commands hard drive to pull or push out the data, and if the hard drive is lazy then it would definitely affect the speed of the computer.

All of below, I link an website where you can download the executable file instead of the full application, It is very easy to test you hard-drive, you just have to run the executable file. There is no need to install the application. You could download the file in just half of a second and run it.

here is the the link you can download the zip file https://goo.gl/j3BxLT

LAPTOPS or NOTEBOOKS ?

Laptop or notebook computers

What does notebook computer mean?

A notebook computer is a small portable computer, often called as Laptop because it can easily use it in your lap. It is a personal computer powered by AC or a battery source, generally smaller than a conventional briefcase but greater than a smart phone. It can easily be transported.
Generally, It has a thin LCD or LED screen in upper portion, attached with an alphanumeric keyboard on the power part of the computer, in the lower portion, the power part contain all the necessary hardware of a desktop computer, typically thickness 3 inches or less in inches and weighs less than 5 ponds. The overgrowing companies popular for the laptop making are, IBM, Compaq, Apple, Toshiba, Dell, and Hewlett-Packard.

Why Generally, A notebook computer is expensive than a Normal Desktop Computer With the Same Capability?

A laptop combines all the hardware of the PC in very scientific way and the designing of a Laptop is very difficult than a normal desktop PC. That`s why normally, a laptop costs more. DOCKING STATION has the ability, it can effectively be turned Laptop into Desktop computer, a hardware frame that supplies connections for peripheral I/O devices such as large monitors and Printers. The ports allows you to connect a notebook to a number of peripherals.

Technology use in Notebooks:

Usually, thin screen technology use in the display of the Notebooks. The Active Matrix screen is brighter and views better at different angles than the dual-scan screen i-e Monitors. There are many types of embedded things on a keyboard to interact with the computer like a mouse. They may be Touch Pad, Track Ball and the Pointing Stick. A serial port also allows a regular mouse to be attached. CD/DVD dick drives may be built in or attachable. The PC card is insertable hardware for adding a modem or network interface card (NIC) to a Notebook.

HTML element reference

An HTML element is an individual component of an HTML document or web page, usually with an opening and closing tag. It commands the browser and add specification to the documents or the web-page.

<tagname>Content goes here...</tagname>

The HTML element is everything from the start tag to the end tag:

<p>My first paragraph.</p>

List of  Different HTML5 Tags: https://developer.mozilla.org/en-US/docs/Web/HTML/Element

How Facebook Database Works?

FACEBOOK:

In 2017, we should not ask WHAT IS FACEBOOK? because touches the top of popularity, Everyone know about Facebook. A survey says that

" Worldwide, there are over 1.79 billion monthly active Facebook users (Facebook MAUs) which is a 16 percent increase year over year. [ FACEBOOK UPDATES: https://goo.gl/SZL1Vy ]"

According to Wikipedia:

Facebook is an American for-profit corporation and online social media and social networking service based in Menlo Park, California. Wikipedia

Stock price: FB (NASDAQ) US$132.18 -0.60 (-0.45%)
27 Jan, 4:00 PM GMT-5 - Disclaimer

Founded: 4 February 2004, Cambridge, Massachusetts, United States

Headquarters: Menlo Park, California, United States

Number of employees: 15,724

Founders: Mark Zuckerberg, Dustin Moskovitz, Eduardo Saverin, Andrew McCollum, Chris Hughes

Subsidiaries: PrivateCore, Oculus VR, WhatsApp Inc., Instagram

MORE READ ABOUT FACEBOOK: https://goo.gl/Jeduh0

But Today We Will Talk About The DATABASE of Facebook.

HOW BIG IS FACEBOOK DATA?

You will surprisingly amazed to hear that everyday 2.5 billion piece of content and 500+ Terabytes is ingested over the Facebook.

Facebook showed some big states of data, data-centers to a few reporters at it`s head-quarter, including the process management of 2.5B pieces of contents and 500+ Terabytes of data on daily bases. It`s  saving in 2.7 billion likes and 300 million photos per day,  and on the second hand it also scan the data roughly of about 105 terabytes each each half hour. In addition to, it gave it`s first details on it`s new "Project Prism".

HOW FACEBOOK MANAGE BIG AMOUNT OF DATA?

Jay Parikh, VP of Engineering explained why this is so important to Facebook; Big Data is really is like having the penetration and it makes an impact on your business.  If your are not taking the advantage of the data you have, then it is just useless clump of data and infect you do not have any information. By processing data in minutes, Facebook can roll out new products, understand user reactions, and modify design in near real-time.

Another thing Facebook showed was that over 100 petabytes of data are stored in a single Hadoop disk cluster, and the Ajay Parikh(VP) noted "We think we operate the single largest Hadoop system in the world." Someone ask "Is your Hadoop cluster bigger than Yahoo`s?" everyone was shocked to hear the VP saying "YES" with a wink.

What he said, that sounds like a lot to smaller businesses, but it is a reality, he also noted that in a few months “No one will care you have 100 petabytes of data in our warehouse”. The speed of ingestion of  DATA keeps on increasing, and “the world is getting hungrier and hungrier for data.”

And this data isn’t just helpful for Facebook. It passes on the benefits to its Adman. Ajay explained, “We’re tracking how ads are doing across different dimensions of users across our site, based on age, gender, interests, We judge that, ‘actually this ad is doing better in Los Angeles  so we should show more of this ad in Los Angeles to make it more successful.'”

More he said "Facebook does not even need to push changes to see their impact now. “By looking at historical data, We can validate a model before putting it into production. We put data in a simulation, and can see ‘will this increase CTR by X?'” It also has a system called Gatekeeper that lets it simultaneously test different changes on tiny percentages of the user base.

Then there’s “Project Prism (Facebook's Project Prism is reimagining how big data scales. MapReduce is a model for processing large data sets using clusters of servers and distributed computing;  Apache Hadoop is one of its most common implementations.

)”. Right now Facebook actually stores its entire live, evolving user database in a single data center, with others used for redundancy and other data. When the main collection gets too big for one data center it has to move the whole thing to another that’s been expanded to fit it. This shuttling around is a waste of resources.

Ajay (VP) says “Project Prism lets us take this monolithic warehouse…and physically separate [it] but maintain one view of the data.” The means the live dataset can be split up and hosted across Facebook’s data centers in Virginia, California, North Carolina,Oregon,  and Sweden.

Users might be a little bit Queasy about the idea that Facebook employees could look so deep into their activities, but Facebook assured that, there are numerous protections against abuse. All data access is logged so Facebook can track which workers are looking at what and for what. Only those working on building products that require data access get it, and there is an intensive training process around acceptable use. And if an employee Nose where they’re not supposed to, they’re fired. Ajay stated strongly “We have a zero-tolerance policy.”

Microsoft Datacenter Tour

MICROSOFT GLOBAL DATACENTERS

Take a virtual datacenter tour: https://goo.gl/a4wlXZ

Why to make Microsoft your Datacenter`s Cloud?

Move your datacenter to a cloud you can trust.
Microsoft provides you a chance to make the move to a reliable and scalable datacenter infrastructure without sacrificing security or compliance needs. Find more cloud deployment options that offer over 200 cloud services across 100+ datacenters worldwide.

HOW Microsoft is building GREEN DATACENTERS?

A green data center is a godown for the storage, management, and elaboration of data in which the mechanical, electrical, lighting and computer systems are designed for minimum environmental impact and maximum energy efficiency.
READ ABOUT THE Microsoft Greener Datacenter: https://goo.gl/RtyXI8
Microsoft Green Blog: https://goo.gl/E85qi4

Microsoft Global Data Centers: https://goo.gl/0zLQOG

Read Cloud Network Strategy Network Papers: https://goo.gl/c7DwJC

View the Cloud Operations Excellence and Reliability Papers: https://goo.gl/BuAlfn

GOOGLE DATA-CENTER [take a walk inside..

Take A Walk Through A Google Data-Center:

 https://www.google.com/about/datacenters/inside/streetview/

Where are the Google data centers?

There are some Officially discovered data-centers among the many data centers used by Google for its services, some are owned and solely operated by Google, Like Berkeley Country, USA and South Carolina deta-centers.

HOW A CPU IS MADE

integrated circuits in making at one of the global foundries chip factories:

• . A world that normally remains hidden from our eyes. The world inside the a microprocessor

 STEPS OF MAKING A MICROPROCESSOR :

STEP 1:

 In the beginning is the circuit diagram

At design center around the glob, experts collaborate to design circuit diagrams sophisticated integration circuits, like microprocessors, high graphic processors. And vireles communication ICs.

The next step is manufacturing

STEP 2:

• The disk`s substrates for the microchips are made from silicon wafers

• To make these wafers, a huge mass of mono-cristals is drawn from purified silicon melt.
• The result is the perfect silicon latics , in which the transisters later will be fitted.

STEP 3:

• However impurities threats are always there, to these flawless silicon crystals.

• Global foundries manufacturer must be clean, therefore we take extensive safety precautions every-time they enter to dust free clean rooms.
• The result our wafers are fabricated in an environment that is more than 100 thousand times cleaner than operating theater.

STEP 4:

• Completely free of dust, the silicon disks arrived at the clean room, Here 25 wafers are packed into each harmonically sealed container, And sent off on a journey, that will take them through hundreds of manufacturing steps,

STEP 5: 

Photo-Lithotrophic technique:

• Photo-Lithotrophic technique transfers the circuit structure to the wafers, rather like slides projections.

• The key to this whole process is solid mystery of light.

• The silicon disk is spin coated with the photosensitive resist,

• Uv light transfers the circuits structure depicted on a mass to the wafers,

• The expose part of the resist is soluble and removed by developer,

• The transferred structure can now be use as a Templet.

• The unprotected of the water surface are protected.

• Billion of small current switches are generated on each wafer, tiny transisters

Photo lithographic stage:

• The wafers move on to the I-on implantation, where the electrical properties off the transistors will be specified. Here the engineers make good use of one of the most silicon properties , silicon is semiconductor and it also have doping effect,

FIRE:

• First doping atoms are injected in silicon structures,

• These atoms then distributes randomly in the silicon latices.

• At high temperatures, the doping atoms become flexible and take on a fixed position in the atomic structure.

• Engineers and experts monitor all the manufacturing process.

• Copper dominates the next process step, the finest interconnect wires linkup billions of separate transistors, to form integrated circuits.

WATER:

• Before that happen ever, cleaning is essential for wafers, as particles in every stage of the manufacturing process, can be remain on wafers, they are remove by water.

• Before the copper is pored into the tranches for the interconnects, a barrier layer is applied, it helps to avoid short-circuits, and guarantied liabilities.

• The tranches are the filled with copper, the excess copper is ground down to the edge of the tranches, these insulates each interconnect from the others

• A microchip is mad of copper wire wing, astablish global foundries is the first company in the world to adopt copper in volume production. A foundation for this state of multicore processors, that global foundries introducing today in all product areas. To keep them on the leading edge of world chip makers, electron microscope constantly monitor every step in the manufacturing process, down to the atomic structures of each indivisual transistor.

• In two months, the wafer is ready. Huge integrated circuits consisting of conductors with the link of multiple kilometers. Link of one hundred billion transistors on numerous lavels and that in the space of one finger-nail.

LAST STEP:

• The last is the packaging of the chips. In preparation for this step thin silver applied on the wafer.

• We will link the chip to the frame, these are the finest saw-blades. The chips are cut the wafer.

• The flip-chip method is used to bind the chip to the frame, which is sealed with a cover