TechPak3

Monday, October 14, 2019

Firefox 69, its Features and Specifications.

Firefox 69 ,
Firefox 69, its Features and Specifications.
Firefox 69, its Features and Specifications. 





Mozilla Firefox 69 is a faster, secure and simple to use web browser. As it is powered by a new Quantum engine, it has double speed. And the results of that's the new generation of internet discovery – a additional intuitive and helpful browser. Firefox 69 is a lean, mean browsing machine. As Quantum’s engine takes 30% less memory as compare to Chrome browser, so your other programs can keep running at top speed. Mozilla Firefox 69 has a beautiful, intelligent design. And its New Look comes loaded with intuitive features like in-browser screenshots, fast in multi-tasking and more. 

Multi-tasking easier

Now multi-tasking with multiple tabs just got easier with Firefox 69. As Firefox is a multi-process browser, it keep tabs stay fresh and quick to reload. And you save time whereas switch quickly between tabs as you open more.

Better Performance to Online Gaming

Now Firefox 69 is giving better performance to online gaming. In this way Firefox 69 reduces lags, speeds up ping times and optimizes overall game play. And it's all because of faster, leaner browsing.


Enhanced Tracking Protection


With launching of Firefox 69, the browser is now blocking known third-party tracking cookies and cryptominers in its standard default mode of operation. By blocking third-party tracking cookies by default, all Firefox users will be able to have better protection against companies tracking their browsing behavior across different sites. Firefox users can understand once increased pursuit protection is enabled, as a small shield will appear next to the URL in the address bar as shown below. Users can then click on the shield to get more information as to what is being blocked by Firefox. With protecting users from tracking scripts, Firefox is also now blocking in-browser cryptomining scripts by default. While cryptominers are not as common since CoinHive shut down, there are still companies that provide in-browser mining services that can utilize your CPU without your permission or knowledge. This could lead to slow performance on your computer and damage to your CPUs from prolonged CPU usage. 



Protecting users’ privacy beyond tracking cookies


Cookies are not the only entities that follow you around on the web, trying to use what’s yours without your knowledge or consent. Crytominers, for example, access your computer’s CPU, ultimately slowing it down and draining your battery, in order to generate cryptocurrency — not for yours but someone else’s benefit. We introduced the option to block cryptominers in previous versions of Firefox Nightly and Beta and are including it in the ‘Standard Mode‘ of your Content Blocking preferences as of today. 
Another sort of script that you might not want to run in your browser are Fingerprinting scripts. They harvest a exposure of your computer’s configuration after you visit a web site. The snapshot can then also be used to track you across the web, an issue that has been facing for years. To get protection from process scripts Firefox users will activate ‘Strict Mode.’

Ability to block any autoplay video

 In previous versions of Firefox it has been attainable to block autoplaying videos that contained sound. In Firefox 69, users can now block any autoplay video no matter whether they are playing sound or not.
To access this feature, go into the Firefox settings, select Privacy & Security, scroll down and select Settings next to Autoplay, and then choose the default option you wish to use

Adobe Flash disabled by default

With this discharge, Firefox will disable Flash by default in the browser and will always ask for permission before activating Flash on a web site. 
With this modification, Firefox will also no longer need to identify users of 32-bit versions of Firefox on 64-bit operating systems. This change offers an extra level of privacy to Firefox users and will reduce fingerprinting.

Windows 10 improvements


This release also brings performance and UI improvements for Windows 10.
This includes a new processor manager that provides hints to Windows 10 on how it should set the priority levels for Firefox processes. This allow less processor time to be spent on tasks in the background and more time on the the tasks you are actively working on. 

Mac improvements

Mac users also get improvements in the form of a better battery life and an updated download UI. 
Battery life is improved for dual-GPU Macs by switching back to low-power GPUs more aggressively, which will save on battery life. Plus, the macOS Finder will now display download progress for files being downloaded.


 Password manager

Forget the reset. Save passwords and logins quickly. 
Firefox brings Virtual Reality to the web platform. Thus exploitation WebVR, developers, designers and artists can share VR experiences on the web. In this method, you’ll experience WebVR with Firefox, Mozilla’s fast, personal and moral applications programme. 

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Sunday, October 6, 2019

What is Matel 3D Printing? How it works?

3D Printing ,
What is Matel 3D Printing? How it works?

What is 3D Printing? How it works?

3D Printing Overview:

3D printing is an innovative method of production: a three-dimensional object is visualized in detail using computer software, the data is sent to a 3D printer, and the printer creates it. Almost all consumer printers can only print in plastic, but that won’t be true much longer.
In real terms, however, the beginning of 3D printing can be move to 1986, when the first patent was provided for stereo lithography apparatus (SLA). This patent belonged to one Charles (Chuck) Hull, who first design his SLA machine in 1983.

What is 3D Metal Printing?


3D printing is a technology which has captured the headlines, with stories about the increasingly sophisticated projects that can be built. However, further developments have seen 3D metal printing go from strength to strength and it now has the ability to be used practically for a great range of projects and functions.

 Metal 3D printing has become increasingly popular. One reason metal 3D printing has become such a hot topic is that parts are often serially 3D printed for production. In fact, some parts made with metal 3D printing are already just as good, if not better, than those manufactured by traditional methods.
In traditional manufacturing, making metal and plastic objects is a wasteful process. Plenty of chunky parts are produced and surplus material used. While making aircraft manufacture metal parts, up to 90% of the material is cut away. 3D printing metal parts uses less energy and reduces waste of material to a minimum. And finished 3D printed products can be up to 60% lighter than their machined counterparts. The aviation industry alone saves billions of dollars through this weight reduction, mainly due to fuel.

How does a 3D metal printer work?

Metal 3D printing is a type of additive manufacturing technology, not subtractive which means that material is gradually added to get the finished result rather than being taken away (such as in turning or milling).

The 3D metal printing process

A 3D metal printer needs a CAD design to start the process, creating a detailed image from all angles of the desired design. Once the CAD software has been used to complete the design, it then needs to be converted into a .STL format to enable the 3D metal printer to interpret the instructions.
The metal printing process is a multi-layered approach, just like other forms of 3D printing and requires the design to be sliced very finely on the horizontal plane before it can start to be built. The 3D metal printer receives its instructions from the computer which instructs the Laser what shape to trace out across the powder. The Laser then pulses and heats up the powder which creates a solid form. This is how 3D printing in metal begins.
Once this initial base has been laid out the 3D metal printing process begins again, each layer typically no more than 0.1mm thick. This very gradual process is how metal 3D printers create the final product, with the heat from the Laser forming a solid shape. This process is known either as Direct Metal Laser Sintering or Selective Laser Melting, depending on the heat used and whether the powder is melted completely or just heated enough to fuse together.

What can be made?

The possibilities which open up with 3D printer metal techniques are almost limitless and designs which were either impossible or extremely expensive to make are now far more viable.
With 3D printing, metal can be shaped far more easily, and incredibly complex and intricate designs are far more achievable. This could be as complex as tubes within tubes, hollow middles with undercuts and overhangs, or just superfine layers previously too delicate to cut. The 3D print will take on the shape which the Laser is instructed to form, which means the only real limitation is what you can design.

What are the benefits of 3D printing?

With 3D printers’ metals and other materials have far more flexibility and the ability to create cheaper and more complex moulds becomes possible.
There are benefits of using a 3D printer or rapid prototype machine:
  1. Greater range of shapes and designs possible. The complexities which are possible with 3D printing couldn’t be achieved via other methods.
  2. More cost-effective. For low volumes of manufacturing, 3D printing provides an economical option which can be individually tailored to meet requirements.
  3. Strong and robust finish. As the design is created as a continuous piece rather than having multiple welds and joins, there are no weak spots making it stronger overall.
  4. The ability to work with such eye-wateringly small slices at a time means designs can be created which are super-thin, or hollow even, reducing the weight of a product. This is particularly beneficial in industries such as aerospace, which crave for lightweight products to improve aero-dynamics and reduce fuel consumption
  5. No waste. Almost all the powder left unused in the process of 3D printing can be saved and used again (apart from a little dust residue). Unlike traditional machining methods, there’s zero waste which means it’s an eco-friendly choice With traditional subtractive methods, an object is manufactured into shape from a solid block, with the waste materials cut and drilled out, which are often wasted
  6. Although a mould may still take a couple of days to print – for more complex designs at least – this is an extremely rapid process by comparison to other methods.
  7. Easy to tweak. If you need to change the design, the process is simple and only requires a few buttons to be pressed rather than an expensive and lengthy re-design.
  8. No need to stock expensive designs. With 3D printing, providing you have the materials to run the machine, there’s no reason for any item to be out of stock. All you need is the .STL file and you can print a product whenever you need one.
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Friday, September 13, 2019

Android 10 and its Specific Features

Android 10 ,
Android 10 and its Specific Features
Android 10 and its Specific Features


Android 10 is here! 

Android 10 is an operating system updates that, like all Android updates.
If you have an Android phone, you'll be familiar with the update process for Android versions: Google launches a beta, eventually pushing that to Pixel devices, before manufacturers roll-out to other devices about 6 months later.
The Android 10 beta was announced on 13 March 2019 and the final release began to roll out from 3 September to Pixel phones. Thanks to both Google and beta testers in the beta phase, we know nearly every new feature included in Android 10. There's a system-wide dark mode, a Bubbles multitasking feature, foldables  and 5G.At the same time, with almost 50 changes related to privacy and security, Android 10 gives you greater protection, transparency, and control over your data.
Other generations of Android had names like "Nougat," "Oreo," and "Pie," but those alphabetized dessert-themed days are gone now, like so many sweet Thanksgiving scraps tossed into the garbage.
Dark mode


Android 10 now boasts a dark mode, which Google calls Dark Theme. Besides giving your phone a brooding black-hued look, dark mode can stretch a phone’s battery life. That’s because on an OLED screen, the individual pixels can actually shut off. When dark mode is on and parts of the screen are pure black, that means that pixels are off, and the battery is doing less work.
And Google notes that you'll be able to customize Dark Theme so it's not either totally on or off: "You can enable Dark Theme for your entire phone or for specific apps like Photos and Calendar," according this recent Post from Google.
5G


You’re probably hearing a lot about the promises of 5G, which is the faster, next-gen cellular network that’s slowly arriving. This next version of Android “supports 5G natively,” Stephanie Cuthbertson, director of product management for Android, noted back at the I/O event in May.
Remember, besides the software running on the phone, the smartphone itself also has to have the right internal equipment to be able to pick up a 5G signal where it exists. Right now, one of the most prominent 5G-enabled phones is the Samsung Galaxy S10 5G.


Folding phone support


Android 10 has also been designed to work well with phones that fold, like the Samsung Galaxy Fold. This new version of Android will support handsets that fold through features like “screen continuity”—in other words, if you’re using an app on the front screen of a folding phone, and then you open the device to the tablet-sized screen, that app will then port itself over to the bigger internal screen.

Live Caption

Do you turn on the subtitles on Game of Thrones and other shows to help you understand what characters are mumbling about? Google offers a new captioning option that takes the words spoken in a video and displays them as captions in real time. This is a separate capability from what Netflix offers in their app, for example—it's a way for you to see captions in a video you've taken on your phone, or that someone has sent you.
In fact, Google said in a blog item that the feature "works with videos, podcasts and audio messages, across any app—even stuff you record yourself."
The feature could be helpful for a person who is hard of hearing or deaf. Google has moved the artificial intelligence network that powers captioning to the phone itself rather than the cloud, so that it doesn’t need to be connected to the internet to work. That AI takes the form of a neural network that occupies just 80 megabytes of space on your smartphone; the fact that this machine learning magic happens on the device is good from a privacy perspective.
While Android 10 is indeed out, Live Caption is coming to Pixel phones "this fall," according to the September Android 10 blog post.
Gestures

The new gesture system — which is optional — replaces all the buttons at the bottom with a single white bar, just like the iPhone. Also like the iPhone, you can swipe up to go home, swipe in a kind of a hook move to get into an overview screen, and swipe straight across to quickly switch between apps. Unlike iOS, Android uses an app drawer. To access that, you swipe up from the bottom when on the home screen.
Those gestures miss the most important (and, surprisingly enough, the most-used) button on Android: back. Google’s solution is to make the entire left and right sides of the screen dedicated to going back when you swipe in from the edge.
Lastly, Google Assistant also has a new gesture: swiping in diagonally from either of the
bottom corners. On the home screen, two little curved lines sometimes appear to remind you that extra gesture exists.
So:
  • Swipe from the bottom: go home or go to the overview screen
  • Swipe up from the bottom on the home screen: open the app drawer
  • Swipe across the bottom: switch apps
  • Swipe from either side: go back
  • Swipe diagonally up from the bottom corners: Google Assistant
  • Swipe down from the top: open Quick Settings and notifications
This all seems very complicated because it is very complicated. It’s a lot to keep in your head. But after you use Android 10 for a few minutes, it all feels intuitive and fluid. The animations aren’t quite as nice as they are on an iPhone, but not so much that it’s ever truly bothered me.
“BACK” IS USED MORE THAN “HOME,” SO GOOGLE DEDICATED BOTH SIDES OF THE SCREEN TO THE BACK GESTURE
All that is well and good, but in the Android world, it’s caused quite a stir.

Focus mode

Do you ever find it's hard to resist clicking on an app—Twitter or Facebook, perhaps—when you really should be using your phone for something else? You'll be able to check off the apps you want silenced, so you won't receive notifications from them, and you'll also see a pop-up message letting you know that you paused that app if you indeed give into Instagram temptation and click on one of the temporarily forbidden applications.

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Sunday, September 8, 2019

5G Internet Evaluation

5G Internet Evaluation ,
5G Internet Evaluation

5G Internet Evaluation

Overview:

 Fifth-generation wireless (5G) is the latest and fastest renewal of cellular technology. It is originate to greatly increase the speed and responsiveness of wireless networks. With 5G, Data transmitted over wireless broadband connections may travel at rates as high as 20 times Gbps by some estimates -- exceeding wire line network speeds -- moreover as offer latency of 1ms or lower for uses that need real-time feedback.
5G will change a sharp increase within the amount of data transmitted over wireless systems because of a lot of offered information measure and advanced antenna technology.
Super fast "fifth generation 5G" mobile internet may be launched as early as next year in some countries, surely download speeds 10 to 20 times faster than we have now.

5G
What is meant by the fifth generation network (5G)?
5G is the name of the technology that follows the present 4G networks. Despite active testing, its standardization isn't expected before 2020. In fact, the fifth generation isn't one standard, however a full advanced of technologies, each existing and fully new.
What can be possibility of 5G deployment?
5G-systems step by step move from ideas and check samples to real commercial product. The launch of the first full-fledged 5G networks within the world is planned in 2020, to date, there area unit various check tests with international telecommunication market players, and work is additionally under way to prepare standards for the 5th generation networks, which is able to be completed by 2020.

 South Korea:

South Korea is the first country who adopt 5G on a large scale, in April 2019. In the mid of June 2019, South Korea had over one million 5G subscribers.


How much fast 5G Network would be?

 The quickest current 4G mobile networks provide about 45Mbps (megabits per second) on the average, though the business continues to be hopeful of achieving oneGbps (gigabit per second = 1,000Mbps). 5G might come through browsing and download speeds regarding ten to twenty times quicker in real-world (as opposition laboratory) conditions.

 Is 5G Internet very different to 4G?

5G 

Yes, it is a innovative radio technology, however you may not notice immensely higher speeds initially as a result of 5G is probably going to be utilized by network operators initially as some way to boost capability on existing 4G (LTE - long Evolution) networks, to ensure a additional consistent service for customers. The speed you get can depend upon that spectrum band the operator runs the 5G technology on and the way abundant your carrier has invested with in new masts and transmitters

How 5G works?

 Wireless network is composed of cell sites divided into sectors that send data through radio waves. Fourth-generation (4G) long Evolution (LTE) wireless technology provides the inspiration for 5G. Unlike 4G, which needs massive, high-energy cell towers to radiate signals over longer distances, 5G wireless signals are transmitted via massive numbers of tiny cell stations situated in places like light-weight poles or building roofs. the use of multiple tiny cells is important as a result of the millimetre wave spectrum -- the band of spectrum between thirty gigahertz and 300 gigahertz that 5G depends on to get high speeds -- will only travel over short distances and is subject to interference from weather and physical obstacles, like buildings.



In past wireless technology have used lower-frequency bands of spectrum. To offset millimeter wave challenges with regard to distance and interference,  5G networks might use lower-frequency spectrum as wireless industry considered it, therefore network operators might use spectrum they already own to form out their new networks. Lower-frequency spectrum reaches larger distances however has lower speed and capability than millimeter wave, however.  
Steps Countries should take:
Countries that want to stay competitive within the international economy are adapting 5G technology. Because technology affects nearly all aspects of life, countries need to keep current with technological developments to strength the lives of their citizens and continue evolving within the international economy.




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Friday, April 12, 2019

Client and Server

Client and Server ,
Client and Server
Client:

 A client is a computer in the network that is connected with the server to access different resources. For using resources the client computer sends request to the server . The server computer provides the requested resources to the client computer. The client computer has less power than server computer.
Server:

 A server is a computer that provides services to the computer and other devices connected to the network. Server computer is most powerful than other computers in the network. 

 Different services provided by the server are as fallows:
  1. Control access to the hardware, software and data
  2. Centralized storage for software, data and information
  3. Processing data
  4. Sharing software
  5. Managing network traffic

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Data Transmission Mode And Its Types:

Data Transmission Modes ,
Data Transmission Mode And Its Types:
Data Transmission Modes:

"The path in which data is transmitted from one place to another is called data transmission modes".


There are three types of data transmission modes:


  • Simplex Mode
  • Half-Duplex Traffic
  • Full-Duplex mode


Simplex Mode

In simplex mode, data is transferred only in one direction. It cannot be moved in both directions. It operates in a manner similar to a one-way street. The direction of flow never changes. A device with simplex mode only can send or receive data . It cannot perform both.

Example:

An example is a traditional television broadcast. The signals are sent from the transmitter to TV antenna. There is no return signal.

Half-Duplex Traffic

In half-duplex mode, data can flow in both directions but not at the time. It is transmitted one-way at at one time. A device with half-duplex mode can perform both functions of sending and receiving data but not at the same time. That is way speed of half-duplex mode is slow.

Example:

 Internet surfing is an example of half-duplex communication. The user issue a request for a web page. The web page is downloaded and displayed before issuing another request.

Full-Duplex mode

In half-duplex mode, data can flow in both directions but not at the time.Full duplex mode is a faster way of sharing data as compared to other modes of data transmission. time is not wasted in changing the directions of flow.

Example:

A mobile/telephone is a full-duplex device. Both persons can talk at the same time. Another example of full-duplex communication is automobile traffic on the two-lane road. The vehicles can move in both directions at the same time.





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What are threads? Give benefits of threads.

What are threads? Give benefits of threads.
Threads:

 A thread is the basic part of CPU utilization. It is also called a lightweight process. It is a series of instructions within a process. A thread behaves like a process within a process but it is does not have its own PCB( Process Control Box). Usually, multiple threads are created within a process. The multiple threads in a process enable multiple executions.

 Thread consists of following:
  • Thread ID
  • Program counter
  • Register Set
  • Stack
A thread shares the following with its peer thread in a particular task:
  • Code Section
  • Data section
  • Any operating system resources. Which are available to task.

Benefits of Threads:
  1. Threads can take advantage of multiprocessors.
  2. Threads share common data and do not need to use inter-process communication.
  3. Threads are easy to create as they only need a stack and storage for register.
  4. Context switching becomes fast when working with threads.
  5. Threads use very small resources of an operating system. They don't need new address space, global data, program code or operating system resources.

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