Technical Rashmi

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...