Infotech

I t was once when I was in 7th grade. I turned on my desktop computer after almost a year. I glanced at the screen a few moments after the PC booted and I was surprised to know it displayed correct date and time after a year of no operation. Also, the computer wasn’t connected to the internet as I forgot to turn on the router so that it could sync the time. To satisfy my curiosity, I researched on the web and came to know that there is a semiconductor chip present on the motherboard which is assigned the job of keeping a note of the time when the computer disconnects from the power source. THE RTC CHIP REMEMBERS THE DATE AND TIME. This timekeeper chip is called the Real-time Clock (RTC) or the CMOS ( Complementary Metal-oxide Semiconductor) chip. The CMOS chip (known as CMOS RAM) is a memory which also stores the BIOS information of the computer. And it is a volatile memory, that’s why It is driven by a low voltage battery having a life of around five to ten years. On deskt

Computers, software programs, and information technology tools and services have become an integral part of our lives. From personal communication and transportation to conduct of business and commercial activities, there is virtually no aspect of modern society that does not involve information technology. In such a scenario, a malfunctioning or buggy software application can have a significant impact on our personal and professional activities. This is why software testing has become an integral and important component of the development process. Software testing refers to the process of ensuring the application does what it was designed to do in an efficient and functional manner. Even program that does not have any bugs requires testing to ensure that it achieves its ultimate objective as specified by the client. The testing process ensures that the software program does not cause unintended consequences like system crashes, along with making sure the ultimate purpose of th

Physical (Layer 1) OSI Model, Layer 1 conveys the bit stream - electrical impulse, light or radio signal  —  through the network at the electrical and mechanical level. It provides the hardware means of sending and receiving data on a carrier, including defining cables, cards and physical aspects. Fast Ethernet, RS232, and ATM are protocols with physical layer components. Layer 1 Physical examples include Ethernet, FDDI, B8ZS, V.35, V.24, RJ45. Data Link (Layer 2) At OSI Model, Layer 2, data packets are encoded and decoded into bits. It furnishes transmission protocolknowledge and management and handles errors in the physical layer, flow control and frame synchronization. The data link layer is divided into two sub layers: The Media Access Control (MAC) layer and the Logical Link Control (LLC) layer. The MAC sub layer controls how a computer on the network gains access to the data and permission to transmit it. The LLC layer controls frame synchronization, flow control a

A great way to filter according to the recipient to use plus – addressing in Gmail, you want your mail to be well organized. But there is a little trick that will avoid you to create 3 or 4 different addresses and  redirect them to your main address . Here is your Gmail address as you created it and as you communicate to your surroundings. Only around you is made up of friends, family members, colleagues, friends and more distant. Do you know that you can decline the same email address in several locations? For example, you want to sign up for Facebook, Myspace, eBay or Amazon. When facebook asked to enter your e-mail address, Add +facebook to the end of your name, but before @ sign. For example:  ysurfing+facebook@gmail.com All mails that will be sent to these addresses declined arrive in your main inbox, namely ysurfing@gmail.com Gmail will only consider what is before the + sign so no panic, the email will arrive you well. What interest to create these alternative ad

                      How to remove the Windows shortcut arrow from desktop icons Shortcuts point to files–usually but not always programs–that are stored elsewhere on your drive. If you drag and drop a program from the Start menu to the desktop, you create a shortcut to the original program. To make it clear that it’s a shortcut and not the original file, Windows displays an arrow in the lower-left corner of the icon. If you don’t like the arrows, you can turn them off by editing the Windows Registry. But William asked for a  safe  solution, so I’m offering an easier, less dangerous way to make the change. And that way involves using the  Windows Club’s  free and portable program, Ultimate Windows Tweaker. Since it’s portable, you don’t have to install it onto your PC. If you’re using Windows 8, you need the latest version,  Ultimate Windows Tweaker 3 for Windows 8 . The first time you launch it, it will ask if you want to create a restore point. You do. Once it’s up, clic

Create a folder and use some of the tricks on that folder, at least you will have a folder which is neither deletable nor renamable. Yes, this is true that you can create a folder in your windows computer which cannot be deleted or rename. If you are one of those seeking fun with friends then this trick is the correct choice to have fun with your friends, however this trick is not only for fun but also you are protected from any data loss, there are many such conditions and situation occur at the time of using your own computer i.e, deleted all the folder by mistake but you cannot delete your protected folder even intentionally. To know the trick to protect your computer folder then just follow the below steps that how can you create a folder that cannot be deleted or renamed. Step starts from CMD as  Command Prompt  from your computer to know more have a look on below steps. Step1.  Open  CMD  as  Command Prompt . (Go to  Start  and type CMD) Note:  After this step make

HOW TO TRACK ANY MOBLIE PHONE Are you looking to know  how to track a cell phone  with pin point accuracy? Do you need to exactly know where your child or employees are moving around during your absence? If so you have come to the right place. In this article I will let you know some of the possible methods to GPS track a cell phone in simple steps. 1. How to Track a Cell Phone that Belongs to Someone Else? If you need to  track someone else’s phone  such as your children or employees, you can simply use a cell phone tracking app such as mSpy. This is a very small app that can be installed in just a few simple steps and takes only 2-3 minutes to complete. Once installed the app stays hidden on the phone but keeps track of every activity on the phone including its GPS location, Call Logs, Text Messages and more. Mspy Features: GPS Location Tracking:  GPS positions are uploaded at a time interval you select with a link to the map. Track Text Messages & Emails:  Every

HOW TO GIVE ARTIFICIAL INTELLIGENCE  POWER TO YOUR PC Briana — The Free Software That Artificial                  Intelligence Powers To Your PC B raina, which stands for the ‘Brain Artificial’, is an intelligent virtual personal assistant that allows you to interact with your personal computer using your voice commands in the English language. Once Braina will be installed on your PC, it will start learning your natural language commands and with the time, it can advance more and more to make your life easier.  Braina is a very powerful personal utility software when compared to others. Besides just replying your queries, it also lets you interact with your computer from anywhere in your house over a Wi-Fi network. This piece of software can also help you in doing everyday things like providing a single window environment in controlling your computer. By taking dictations, it can search the internet, play songs, open a file for you, search inside a directory

HOW TO IMPROVEYOUR WIFI SPEED TO GET FASTER INTERNET Wi-Fi are just radio waves, and many things can cause interference. But a strong Wi-Fi signal can give you faster performance and better coverage distance, so it’s important to properly position and configure your router for optimal signal strength. I’ll show you how; it just takes a few minutes. Point the Antenna Up To Get best signal Routers generally have physical antennas that are adjustable. The antenna often comes pointed horizontally to fit the router inside its box. For maximum signal strength, position your router’s antenna vertically, pointing straight up. If you have two antennas, you won’t get better performance by pointing them in different directions. Position Your Router Properly In Correct Place Consider where you put your router. If you have a large home or office, place the router close to the center to maximize coverage. If you position the router at one end of the building, you may have poor (or no

LEARN PROGRAMMING WITH GOOGLE'S NEW EDUCATION WEBSITE   Google has launched a new computer science education website that acts as the ultimate place for getting in touch with Google’s effort in this field. Go ahead, check out Google’s new CS EDU website. Also, don’t forget to explore our dedicated programming courses. Google has just launched a new  Google Education website  that is basically a collection of different programming tools and other basic resources for us. This one-stop place for learning includes some well-known learning programs like Google’s Made with Code, igniteCS and CS First. Apart from learning computer science, you can also use this portal to explore scholarships by visiting the ‘Participate in Academic Opportunities’ page. You can also explore multiple Google contests and internships by clicking on the ‘Access Career Opportunities’ link. We all know that learning computer science is a way to explore opportunities and implement your innova