Technical Rashmi

You may think that all cellphone screens are the same, but that couldn't be further from the truth. Cellphone screens can vary greatly from phone to phone, and the type of screen that your phone has makes a big impact on how you use the device. Here's an overview of the most common types of screens found on cellphones. Gorilla Glass :   Gorilla Glass can avoid screen of mobile phone from scratches.The scratch- and impact-resistant qualities in Gorilla Glass, combined with its incredibly thin profile, enable it to protect device displays without adding significant weight or interfering with capacitive touch screens. The first generation of Gorilla Glass was used in the screen of the original iPhone from Apple. Clear Black :  This display prevents the block between the phone's screen and the surface. This gives better screen quality in the sun. IPS :  It contains magnificent colors.It requires a powerful backlight.You can see the screen from wide angle.This disp...

The full name of VIRUS is  Vital Information Resources Under Siege.  A Computer Virus  is a malware or a malicious automated code which  replicates itself  from one computer to another and infects the operation of the machine. It is a small software program which spreads by attaching itself to executable files or documents present on the computer system. Viruses  spread your computer system  and  hack your computer system or steal your personal information from your computer. Types of Computer Virus Viruses are designed for various intents. It might corrupt or destroy data on your computer, use an email program to spread itself to other computers on your network or may even affect the boot sector. Broadly, computer viruses can be divided into two categories; Compiled Viruses: It is that kind of a virus whose code is converted by the compiler into a format which can be directly executed by an operating system. Interpreted Viruses: These ...

Contrast ratio is a figure used to measure the luminance difference between the brightest white and the darkest black. The contrast ratio will be listed as y:z where 'y' is the brightest white and 'z' is the darkest black.A recent example of the ratio is 10,000:1 meaning there are 9,998 shades of gray between the darkest black and the brightest white that the TV will produce. Dynamic vs. native Contrast ratio Native contrast ratio is a narrower measurement generated also by manufacturers to denote that the ratio is confined at least to white and black measurement from the same screen at the same time from the same source. This would compare to ANSI checkerboard pattern.Native contrast ratio is what the panel alone can do, whether OLED or LCD (or plasma, may it RIP). Dynamic refers to the practice of varying the LED backlights behind the LCD screen to achieve better contrast. The intensity of the LEDs behind the LCD screen are dimmed in dark scenes and brighten whe...

Smartphones and tablet don’t just use “processors”, It uses System-on-a-Chip (or   SoC ).SoC  is the equivalent of a computer motherboard, including main processor, graphics processor and memory — on a single chip. With the evolution of cell phones into full-fledged handheld computers, manufacturers had to think of new ways to fill all the essential components of a PC into the tiniest space possible. Hence, the birth of System on a Chip, or SoC. It is the chip determining your device’s performance, and the kind of hardware it will support: the camera, display resolution, USB 3.0 or 2.0, Bluetooth version to name a few. SoC integrates a microcontroller (or  microprocessor ) with advanced peripherals like  graphics processing unit  (GPU),  Wi-Fi  module, or  coprocessor .  What goes inside the SoC varies between different manufacturers, but all of them contain at least the following components- Memory : RAM is used by the OS to store freq...

Smart card is a pocket-sized plastic card with a small chip inserted into it. It is also known as a readable device which provides security verification in large organizations. It can store and transmits and records data to a central computer whenever needed. Smart card is a special type of card like device which contains an integrated circuit chip embedded on it. The IC chip can be a microprocessor with memory or just simple memory circuit.  Smart cards have three main functions: authentication, storing personal information, and storing values. Smart card -enhanced systems are in use today in several key applications such as health-care, banking, entertainment and transportation. The card data is transacted via a reader connected to a computing system. How does the Smart Card Works? Smart card reader is also called as a card acceptance device, or an interface device. There is a minute difference between the card reader and the terminal. The reader is used to de...

Smart phones are ingrained in today’s society, and the two biggest players in the smartphone market are the Android operating system by Google, and iOS by Apple. Neither operating system was originally as user friendly as it is today. Android originally came with no virtual keyboard, a lack of app store, and no multitouch capability. Android was originally introduced in 2008 on the  T-Mobile G1  smartphone.  The original Apple iOS was comparable to Android in that, when it was introduced in 2007, it too was inferior to the current version. The few features in the first version of iOS included Google Maps, a home button, an on-screen keyboard, and the first popular touchscreen on a smartphone. Apple includes iOS only with the  iPhone , iPod Touch, and the iPad, while Google allows  Android  on any number of different devices. Both operating systems have come a long way since their introductions, but deciding which of the two mobile operating systems is...

Microsoft Word is a word processor software developed by Microsoft. This software use it all and know very well about its usefulness. But there are also some inbuilt features that few people know about them and with their help a lot of work can be easy. Some Hidden And Useful Features of Microsoft Word : Change Case of Sentence : If you select any sentence or word and press   Shift + F3 , then the sentence will be sequentially change into  Uppercase, Lowercase and Camlecase(The first letter capital). Reach the Place of Change : If you are working on a large word document  and you have to reach those place immediately, where you have edited that document then keep pressing Shift + F5.  You will reach all those places. Spell Checking Shortcut : Spell checking feature is also a good feature of microsoft word. Those user who make mistake in writing, they can check their mistakes with the help of this feature. To check the spell press F7 key on you...

Nowadays a new trend of video streaming is revealed which is known as Cord cutting. But most people do not know about this new option of video streaming or don't know how to use it. Cord cutting refers to the process of cutting expensive cable connections in order to change to a low-cost TV channel subscription through over-the-air (OT) free broadcast through antenna, or over-the-top (OTT) broadcast over the Internet. C ord cutting, in a telecommunications context, is the practice of stopping a cable or satellite television service or getting rid of a  landline  phone.  Cord cutting is a growing trend that is adversely affecting the cable industry.   The main goal of cord cutting is saving money. Netflix, Apple TV, Yupp TV, HotStar, YouTube, BigFlix, and Hulu are some of the popular broadcasting services that encourage cord cutting. The cord cutting concept received a considerable amount of recognition beginning in 2010 as more Internet solutions became avail...

Everyone knows about the general use of computer mouse. Generally all computer users use Left, Right buttons and Scroll Wheel because it's the most useful in mouse and they are mostly used. Apart from these, the computer mouse is not needed and it's other features do not use in work. Mostly computer users know about the keyboard's shortcuts  but litte know about the mouse's shortcut features. So we will tell you about some shortcut features of computer mouse, which can make your work easier on your computer. Open New Window :   You can open any link in  new  window with the help of mouse. To open any link in new window you can use left click with shift ( Left click + Shift ). Process  of Close Tab :  If you want to close any tab in browser, then click  on Scrolling Wheel by placing the Mouse arrow on that Tab.  Zooming Work : If in the application does not have a Zoom feature then  you can take help of mouse.You Scroll the mo...

Net Neutrality is the internet’s guiding principle: It preserves our right to communicate freely online. Net Neutrality means an internet that enables and protects free speech. It means that ISPs should provide us with open networks ; and should not block against any applications or content that ride over those networks. Just as your phone company shouldn’t decide who you call and what you say on that call, your ISP shouldn’t interfere with the content view or post online. The internet without Net Neutrality is not really the internet. Without the Net Neutrality rules, companies like AT&T, Comcast and Verizon will be able to call all the shots and decide which websites, content and applications succeed. These companies can now slow down their competitors’ content or block political opinions they disagree with. They can charge extra fees to the few content companies that can afford to pay for preferential treatment - relegating everyone else to a slower tier of service. T...

Pixels Per Inch is a metric used to describe the pixel density (sharpness) for all sorts of displays, including cameras, computers, mobile devices, etc… A Smartphone display has thousands of individual pixels. Pixels stand for picture elements – they’re the basic building blocks on a smartphone display. Images are formed by directing the millions of pixels to change colour in unanimity. By changing each pixel to give the desired colour, smartphones can produce almost any image. It is important to understand what it really means in a world where visual computing and visual quality has increased exponentially over the past decade, and where PPI has become a prime marketing tool. PPI is a pixel metric, but it can't be used by itself as a sharpness benchmark because the distance between our eyes and the display is as important as the pixel density itself. If you bring your screen closer to your eyes, you will see the pixels. If you move the device further away, the additional...

Image Stabilization  (or  IS)  is a method to reduce  taking blurry photos by moving the camera lens automatically to compensate for camera movement which can be induced by the user hand-holding the camera, or because the camera is fixed on a platform prone to vibration or movements. Optical Image Stabilization (OIS) is a feature that you find on the cameras of many high-end smartphones. OIS eliminates a very common problem: blurry photos induced by user movements (shaking, screen tap), or motion of the camera in general (maybe you’re mounting the camera on a bike/helmet). How does OIS work  You can think in terms of a traditional camera, the process of taking a photo is like this- you set up your shot, you adjust the focus, aperture, and shutter speed and then you click the button to open the shutter and allow the light in, so it can be captured on film or an image sensor. But here is the thing, if you move the camera, even a little, ...