Why we face signal issue while travelling??

Hey guys, today we will take you to an incident that we almost face in our daily life i.e when we travel in train or any vehicles then we see that signal of our phone fluctuates and some times it goes off completely and also call goes drop. So, why this happens. Here is the thing that one should know while travelling and bothering about the signal.

A signal is something that we use to transmit and receive the information with our nearest BTS(Base Transceiver Station or simply Cell Tower). Well, we are not going to much deeper with engineering terms. I will keep this simple. So, until and unless, you switch off or turn your phone on flight mode, the flow and hence fluctuation of signal will keep on going. So, if you wanna save your battery while travelling and you have nothing to do with your phone then better to go for flight mode or turn off your cell phone.

Fluctuation of signal of your phone is due to fact that your phone is connecting to new bts(cell tower) and also it goes away from connected tower due to you are in motion while traveling. So, Hand off is a process through which our phone switches to different bts i.e one to another and so on. Hence, we face signal issue while traveling. If time to switch between one bts to another will be more then if we are in call then our call goes drop or disconnect and we also face this problem while traveling.
But, if are in stationary and thus connected to a single bts due to the fact that we are not in motion, so time upto which our call maintains within a single bts without any hand off is called DWELL TIME.

So, we hope now you guys are aware of the facts that we face with the network of our phone while travelling in any vehicles. So, that's it for today we will see you soon.

How to detect camera in a changing or trial room

Welcome you all to my new post. Today, we will give you some tips to detect a hidden camera in a changing room or anywhere else.
We all like to shop in mall and buy our favourite clothes and also we get inside the changing room of that mall to check the fitting of our selected clothes. But, sometimes we hear the news that a particular shopping mall had a camera and it got banned by the police but till then it becomes so late that we would had nothing to do. Mainly, girls are made victims of these craps. So, this post is mainly for all the women out there.
So, follow these steps.

1)Use your eyes: This is the normal way to navigate the whole room where you are in. Just roll your eyes around and find whether or not camera is present in the room.

2)A small practical with mirror in the room: Every trial room has a mirror ofcourse.So, all you have to do is just touch your finger with the mirror then ofcourse a image of your own finger will be formed in the mirror too. So, if there is a distance in between both i.e between your finger which you have touched with the mirror and the image of your finger formed inside the mirror, then that means it is a true mirror but if, there is no any gap or distance in between them then that means, it is a two sided glass or mirror not a real mirror. A two sided glass or mirror is one which will look like a mirror when you see it from one side but when you will see it from other side the it will be transparent i.e, anybody can see you from other side of the mirror and you won't have a micro doubt even.

 

3)Check your mobile network: We know technology has been still growing and today size of electronic gadgets are decreasing and thus increasing their speed of performance with less power consumption. So, modern camera is smaller in size and that also means it's bandwidth will be higher in order to record high defination video and as it has higher bandwidth thus it uses optical fiber cable for this purpose. So, all you have to do is just open internet connection and try to access any random web pages on your mobile browser, you will see that pages are not accessible properly also try to make a call to anyone you will also see that calls are not placing properly, then maximum chances are to have camera in that trial room.

So, if you face any doubt after doing above experiments then better to not use that trial room or any room.
So, guys that's all for now, we will be back with some other chapters of technology.

Web family types & details

Hey guys, what's going on. Well, today we are gonna describe the types of web pages present on the internet. Namely, there are three types of web pages present on the internet which are
1) Surface Web
2)Deep Web
3)Dark Web
So, let's learn what are these. So, start from the first one and then will move to the last.
1)Surface Web: These are the normal web pages that we surf, download, upload on the internet. For example if we type some query in the google search box like "Who was the inventor of Internet" so, whatever pages that we get after pressing enter are called Surface web. In short way whatever pages that we visit on internet without any authorization are called surface web.

2)Deep Web: These are the pages which are not indexed by google search engine. For example, suppose we create our own website for our organization which contains many web pages but there are some web pages which we don't want any people other then a selected group of that organization or a registered users to access. So, if someone wants access those pages then first he/she has to authenticate him/her self then only one can access those pages. On the internet , deep web has a very large area which are not for public access. Whatever secret plans of government would be those are saved inside the deep web so that no one can access those pages for security purpose without having username and password. There are many things beyond the scope of our thinking which have been hidden inside the deep web.

 

3) Dark Web: These are the most dangerous part of the internet world. These pages are for only illegal usage like smuggling , gambling and some other crimes. These pages are used to sell all the illegal things on the internet which we can not tell even. So, close your eyes and think whatever illegal things that you can think in your mind, are sold on the dark web.These are hidden inside deep down to the internet's layer and obviously are not indexed in the search engine's dictionary. 98% users of the internet don't know about these pages. They are only known to users who involves in illegal activities.

 

So,  guys we think now you have a complete idea about surface, deep and dark web. We are signing out for now and will fetch you with some another technical solution.

Windows registry and all that you need to know about it

Windows registry is simply a database which contains all the setting of our windows file and installed third party software. The Windows registry is divided into several root keys. They can also be called Hives. Registry keys are similar to folders.Five hives are HKEY_CLASSES_ROOT, HKEY_LOCAL_MACHINE, HKEY_USERS, HKEY_CURRENT_CONFIG, HKEY_CURRENT_USER and sub keys.

Registry key has sub keys which contains value in string, binary, hexadecimal, Dword, QWord
 forms.

Registry contains some value. So, suppose you have a software of file conversion like pdf to doc or pdf to excel. So, you open the software and customize it's setting according to your need and save the setting so that, you don't have to change the setting again. So, this setting is stored in windows registry. Windows registry also stores all the setting of your windows. Your windows is itself a software whose settings are stored in registry.
So, when you save some settings of windows like enabling or disabling hidden files or folders, hide or show extension for the files, hide or show the system files, some network settings so, all the settings are stored inside the registry. So, that it would be easy for you and you don't have to bother for changing and saving the changed setting again again.
Windows registry was first used in windows 3.1 version and then it is being used till now.
But is it necessary that every softwares save it's setting in the registry??
So, it's not like that. There is no rule that a software must save it's setting inside the registry. Some saftwares come with its own xml file which contains setting of that software both default as well as user's customize settings. So, that when we open that software then the software first reads that xml file and check the last customize settings of user's and then open the software with those settings and same thing happens if a software saves it's setting in windows registry i.e software first checks it's setting from registry and then open up with those settings.
You may find some registry editor softwares which manipulates the value stores in the registry and thus changes the setting but it's a very risky to messing up with registry until and unless you do have the proper knowledge of it.

How to start your laptop without battery??

Hey guys, welcome you all to our new blog. Laptop and it's battery, we cant count them individually but today, we are going to learn about how to start our laptop without battery in. So, follow these simple steps ---->>
1)Plug in the power adapter to the laptop.

2)Take the  Lithium-ion battery out from the laptop.

3)Power on the laptop by pressing the power key.

4)That's it. Now play with your laptop without battery in.

So, we can enhance our battery life in this way by saving multiple charging and discharging operations of battery. So, if you stay in an area where electricity runs 24/7, so, you can use this method but strongly note that if, in any manner, your power adapter goes switch off then your laptop will be shut down immediately due to not having any power source i.e battery or power adapter attach with it.

So, guys we hope you will use this method to save battery life. We will soon fetch you later with an another chapter of technology till then see you.

Is MEGAPIXEL the only parameter to define the performance of camera???

Now a days, smartphones became a normal topic in our day to day life. Most of us have a smartphone which we use for different purposes.One of the most important features of smartphones is the camera.There is a common concept in people while judging a performance of a camera is the MEGAPIXEL. Most people always treat Megapixel as a singular Parameter regarding judgement of performance of camera but is the knowledge of MEGAPIXEL enough to judge the performance of camera or the quality of pictures taken by the camera???? So, guys in the post we will know about some basic details of mobile camera, it's basic functioning and some parameters to compare or judge the performance of camera and the image's quality taken by it.
Almost Every camera has two major components that form the camera modules which are Sensor and Lens. These parts are connected to the mother board of the mobile via ribbon cable. while capturing an image these components play the vital roles in processing and producing the image. Without any of these parts the term "camera" will be worthless.

SENSOR

 Almost all smartphones use CMOS(Complementary Metal -Oxide Semiconductor) Image sensor. It is made up of pixel sensors where each pixel contains a photo-detector that captures the light waves falling on it. It amplifies the light wave and converts it into electrical signal and sends this data to camera software to produce the image.Some camera manufacturer's company use BSI(Back Side Illuminated) sensor and ISOCELL sensor. The BSI sensor increases the amount of light captured and thereby improve low light performance of camera. This helps to reduce noise that you usually get when you take pictures at night with an LED flash. Camera with ISOCELL technology increases the viewing experiences without filed of view loss and also increases the DYNAMIC RANGE(here dynamic range means the difference in intensity between the lightest and darkest parts of the image). Camera sensor size also affects on the quality of image captured. Bigger the image sensor, able to collect more information and produces a photos with better dynamic range, less noise and improved low light performance than its smaller sensor.

MEGAPIXEL

Technically, 1 megapixel is equal to 1 million pixels. This means a 10 MP camera has 10 million pixels. But what is Pixel. so, Pixel is the smallest unit in an electronic display or visual display file i.e. a single dot but in case of Camera, pixel is the light sensitive diode called photo detector that receives the light focus through camera towards the sensor. This means that a 10 MP camera has 10 millions of photo-detectors to receive the light coming towards the image sensor.With increase in resolution of camera, image quality increases with better detailing, lesser noise,better low light performance,high quality printing and cropping of image. Size of each pixel also affects the quality of image produced. Larger the size of each pixel, more the light absorb and better the image produces.

APERTURE

Aperture is an opening of a lens's diaphragm through which light passes to the image sensor. It works much like the iris and pupil of an eye by controlling the amount of light which reaches the retina. The aperture size is defined by F-number. F- number is the ratio of lens focal length to the diameter aperture. A smaller F- number means that the lens has larger aperture that allows more light pass through it to the sensor producing quality image. Camera having aperture f/1.8 performs much better in low light as compare to camera having f f/2 or f/2.2 aperture.

IMAGE STABILIZATION

So, What the heck "Kernel" is????

Welcome you all to the new post. Today, we will learn about the Kernel. First of all don't get confused with the word "Colonel" and "Kernel" cause both sound similar.

Colonel is related to arm forces of nations i.e a commissioned military officer in Indian army or air force or marine who ranks above a lieutenant colonel and below a brigadier general but the word "Kernel" is totally 180 degree of "Colonel" that means totally opposite of colonel.

KERNEL

 So, as you can see from below pic that kernel acts as an interface between Software's applications and CPU, memory and other devices. Kernel is not only limited to your android phone, it also found in computers, tablets or any computing devices which works on operating system.You can check the version of kernel in your android phone by navigating to setting>>About device>>Kernel version and there you can find the name of the kernel installed in your android phone with it's version, code,date of update of your kernel.

So, for every application to run successfully, needs a kernel. We know that a computer or a cell phone consists of inbuilt hardware like processor, ram, storage, camera, display, vibrating motor, speaker, headphone jack etc so, we need a system which can be used to utilize these hardware components 
properly for their purpose and that job is done by kernel. Let's take up an example, when you click 
on the camera application of your phone then that application needs to grant access of hardware parts 
of camera like sensors, led, etc so that task is done by kernel and after clicking pictures, camera software also needs to store the image in memory so, that task is also done by kernel i.e kernel grant permission to 
the camera application to store the data into the storage area inside a particular folder.So, kernel is basically a software which gives permission to all the applications to access required hardwares. For example, if i wanna use a message app to message someone then the particular hardware needed by that message app to broadcast the message is given by kernel. If an app runs in background then that is also done by kernel on the other hand if any application wants to access CPU for it's functionality then that job is also done by kernel. So, now you know what actually a kernel is and how important it is. Any device like phone or computer will be like blind if it does not contain kernel because hardware which is needed by an application to run will not be given to that application. Even when we switch on our phone or computer and the boot animation or logo that we see and also all the software that load in the memory are managed by kernel.

Android based phones use Linux kernel, that is kernel used by Linux operating system, with little bit differences and as a Linux is an open operating system so, you can change the kernel of our android phone but for this you should must have access to the root of our android phone and also you should must unlock the boot loader of your android phone.

But why you should change your kernel??

So, by changing your default kernel with another third party kernel, you can increase your android phone's battery life and it's performance to a great magnitude by allowing a selected application to run and disabling the unwanted applications to use your battery and CPU but you should do these steps very carefully by not disabling any necessary applications. So, that's why max precaution should be taken before downloading and installing a 3rd party kernel. Kernel should based on your android phone and from a reputed source or else if something goes wrong then your phone will be nothing but a waggon.

So, guys that's all for today, we will be back with another interesting things. Hope, you found this post helpful for you.

Processor, it's core and 32 vs 64 bit stuff with it

PROCESSOR

Hey geeks, welcome you all to my blog. Today, i am gonna give you a sound knowledge about processor and it's core and also how to choose the right processor in a simple way.
So, as the name suggest a Processor is something which does process some task for users. For example, if we hire someone to get a job done by him/her then we can say he/she is him/her self a processor for us that processes a definite task for us.
So, in digital world a processor performs several tasks like arithmetical & logical functions, external and internal interrupt subroutine tasks etc, Don't get confused by mouthful terms , i am going to make it simple for you.
Let's take an example of mobile. So, if we click a button on our phone then our phone reacts on each clicking . so, how it understands that what we want? For example, if we press home button then we switch to the home screen of our phone or if we press power off key then our cell phone goes shut down. So, this functions are handled by cpu (central processing unit)or processor of our phone. Similar explanation holds good for any electronic gadgets like computer , washing machine , ATM machine , robots etc in which a set programs or instructions are burned on the chip which helps the processor to perform tasks for the user and it's inbuilt tasks too .
So, a cpu  is the most busiest person of the world because it always performs some kind of task even if don't touch the gadgets.
A processor has following parts like
1)ALU (Arithmetic and Logic Unit)
2)Control Unit
3)Registers
ALU performs all the arithmetical and logical functions. Control unit is for controling  the whole unit. Registers are used to store the bits.

Bits are the binary numbers i.e 1 and 0. Every calculation that a processor performs are always in the streams of bits.

Core of a cpu/Processor  So now what is the core of a processor?? So, imagine you are the processor and your hands are the core. So, that means a quad core processor can do more works at a time then a dual core processor but that does not mean that a quad core processor is always good than a dual core processor or an octa core processor is always good than a quad core processor. So, on what factors it depends? So, let's discuss this.

How to choose the best processor

So, we always hear that a larger quantity is better than a smaller one i.e octa core is better than dual core.

So, is it really true??

So, a processor is good or not can be judged by following terms.
1)Architecture An “architecture” in this context means the instruction set and the design philosophy behind that instruction set. The vast majority of Android smartphones (and all iPhones) use CPUs based on the ARM architecture.ARM is a British company which is one of the largest semi conductor chip manufacturer.. it design the mobile processor and Cortex xx is term to define the core designed by ARM. ARM licenses (sells) it CPU designs to its customers (Snapdragon,Samsung,Apple are examples of some reputed customers)who then in turn build their own chips. These companies then use this processor chip,GPU chip and some IC to manufacture SoC. SoC is an integrated circuit(IC) that integrates all components (including CPU,GPU) into a single chip. Then these companies sell this SoC to the mobile manufacture companies.. Some popular SoC at present are Snapdragon 650,Apple A10 Fusion,Exynos 8890 etc.
2)Technology Second thing is the technology that is used to manufacture the processor. A processor consists of billions and millions of transistors of small size. So, a processor with minimum size of transistor would have greater speed and less power consumption. Currently , samsung company makes transistors of smallest size on the processor chip whose size is 14 NM. So, lesser the size of transistors on chip, higher the speed and lower the power consumption.
3)Number of cores  In simple language, a core is a processing unit which perform the given task.. Now a day, quad core,hexa core, octa core are very common in mobile processor. As discussed above it's not always true that higher the number of core of a processor , better the processor is. So, depending upon the above two quantities i.e architecture and technology , the core's numbers does vary. Suppose, you are having two types of processor say A and B and A has size of transistors inbuilt is lesser than B but suppose A is duel and B is quad core processor but still processor A leads the B due to smallest size of transistors on it.
4)Frequency It is the speed (in GHz) at which processor works. So, higher the frequency better the processor but still here architecture and technology comes first.
 So, first always check the architecture and the technology that has used to make the processor then comes the number of cores and frequency.

32 Vs 64 bit processor

 32 and 64 bit are the number of addresses that a processor can address. A 32 bit processor can only use ram upto size 4 GB. So, if you are having ram in your pc or mobile greater than 4 GB then switch to 64 bit processor because 32 bit processor can have 32 values of 0's and 1's only. Second thing is calculation range i.e a 32 bit processor can have calculation between 32 bit integer where as a 64 bit processor can have calculation between 64 bit integer. So, range of memory addressing and range of calculation is larger in a 64 bit processor than a 32 bit processor.

 So, now i guess you guys can estimate which processor is best and which is not. So, guys i while purchasing the phone or any smart electronic gadgets keep these things in mind because heating issue of a device, speed, battery life, etc all depends directly upon the processor. 

Can an external storage be used as RAM?

Hey, guys we all know about RAM which stands for Random Access Memory. Well, that's a mouthful words. So , what actually it is??

So , suppose you are working in an office and messing with a lots of files and those files are inside an another room. So , the file which you need to work on , you will simply go to the room where all files are and will take that particular file only and put it on the desk and start working on your assignment.

So, now suppose to finish an assignment , you are going to need more than one file. So , you will fetch the room where files are and take those all files and put them on the desk and take those files one by one in order to finish the assignment. Now , if your desk has large area then it means it can hold more files at a time. Now, when you are done with those files then you will simply put them all in that room where files are kept. So , the RAM works like that i.e, suppose the room is your storage(internal memory, sd card etc) and the desk is your RAM. So , ram is a very fast memory and cost to manufacturing a 1 GB ram is more than a 16 GB sd card or pen drive.RAM works with cpu and in order to work with cpu , it has to be match with the speed of cpu and that's why RAM is very much faster than hard disk , pen drive, sd card, dvd, etc. So , if you install a game in your phone or pc then though it stores inside your sd card or internal memory or hard disk but when you click on the game to play with , so for the time being , it will come into action inside the ram until  you are playing the game in order to transfer information between the cpu and ram.So , depending upon how much ram you are having , you can run more and more application at a time. So, having more ram is an extra benefit for multitasking purpose. So , today at least 2 GB ram is sufficient to run any application but having more ram is best for some future's application.So , for multitasking purpose , 2GB ram is the minimum requirement. 

MISCONCEPTION BEHIND RAM

Some people thinks that after rooting the smart phones , they can increase their ram. So , it's entirely a misconception. Yeah , there are some apps which can convert your external or internal memory into ram but can it really work as your ram?? No , it can not. Speed of ram is very much faster in order to communicate with cpu to transfer information whereas on the other hand speed of external ram or internal memory can never ever match with the speed of your inbuilt ram of your phone or ram of your pc. Some people think that using ready boost they can use pen drive as a ram but its not 100% true due to a huge speed difference between ram and a pendrive or external storage. If you use an external storage as a ram then  it will slow down the speed of your phone or pc rather then increasing the speed.

RAM has speed in MHZ which divides it into category of DDR2 or DDR3 and so on. So, having more ram with high frequency is good for you.

DDR3 has more speed and less power consumption than DDR2.Similarly , DDR4 has more speed and less power consumption than DDR2 and DDR3. A DDR3 ram has minimum speed that is equal to maximum speed of DDR2.If you are having 8 GB of ram in your pc and you are thinking to take whether a single stick ram of 8 GB or a dual stick of 4 GB then i will suggest you to take dual sticks of 4 GB ram because though you will have 8 GB total but the speed will be enhanced due to dual sticks ram. It is similar like a a double hole in tank can empty the tank more fastly than a single hole.

So, guys i think you now do have basic ideas about ram and common myth regarding ram. I will be back soon with another technical concept like this.

Smart Tech For Mobile Section

Where is the storage of my sd card or pendrive??

Hey , guys i am damn sure that you all wonder that why your sd card or pendrive always has some little less storage compare to printed quantity on the cover. So, if you really wanna get a solution to this problem then read my blog.

   

So, all we know from our digital knowledge that

  Convention 1

 1 Byte=8 Bit

1024 Byte=1 KB

1024 KB=1 MB

1024 MB=1 GB

1024 GB=1 TB

so , these were the standard formula that we all know but the manufacturing company which makes storage , they face trouble while an external 24. So, better for their simplification they assume that..

Convention 2

 1 Byte=8 Bit

1000 Byte=1 KB

1000 KB=1 MB

1000 MB= 1 GB

1000 GB=1 TB 

So, now suppose you have purchased a memory card of size 32 GB. So , according to you , it should be of 32 GB but according to their calculation ,  it is

32 GB=32,000,000,000 Bytes (As they follow Convention 2)

So, now lets us calculate that from our part of calculation i.e , from convention 1 , how many GB would be equal to 32,000,000,000 Bytes????

so, it would be as .....>>  (32,000,000,000)/(1024*1024*1024) GB=29.80 GB

or may be a little bit less or more that above calculate quantity i.e, from  29.80 GB.

So, guys now i guess , you do have idea that why you don't get the actual storage that is printed over the memory card cover.

If you guys find this informative then please like and comment. I will be back with another important information like this.

 

How To Shutdown Windows Via Command Windows

 Hey , geeks today i will show you that how you can shutdown your windows in sec. Follow these steps
1) Click on start and type "cmd" and open it with administrative privilege.
2)Then simply type "shutdown -s -t 00" without quotes.
3)Hit enter.
3)That's it , your pc will be shut down immediately.