Showing posts with label Technology. Show all posts
Showing posts with label Technology. Show all posts

Tuesday, January 30, 2018

Let's know about Ransomware. - Full Tutorial


Today, Ransomware is a topic in different countries around the world. So I wanted to talk about it a bit. Before that, I did not know anything about this, and I wanted to know something about Ransomware.

Ransomware is a malware. It's made by our important files as Automatically Encrypt. Usually, we use File Encrypt to increase the security of that file. Once we have encrypted a file, we need to recover it and use it to get the Decryption Key associated with the encrypt. There is a bit of knowledge about this.

If this "Ransomware" malware is infected by our computers, we are unwittingly typing our Files very fast and automatically encrypting it, we do not understand it. But again it does not get into the hand of the Decryption needed to restore the Files, and not get it. Instead, the Decryption Key goes to the person who created the Ransomware (Hacker). Now do not want to say what's going on next. After that, if we wanted to retrieve our files, we have to give a ransom to the person who created the virus. Within 6 hours, if we did not recover our data, Permanent Delete would not be able to recover our files. These six hours are so dependent on the power of each Ransomware. I can not say exactly 6 hours. It's simply the functionality of a Ransomware. Otherwise, it's going to be a nasty one after the Ransomware one succeeds. I do not look forward to that. Now what happens with a Ransomware, I think that there is one idea that one can do one for one.


A little more about this, Ransomware can be divided into two parts. This sort of thing was sorted out.

01. Encrypting ransomware.

This automatically filters all User Files in our hard drives. It means that we have a malware designed to attack our machine directly. That's because User Files applies Decryption Keys to everyone who created the virus. So it's the hacker. Then all the things have to be done.

02. Locker ransomware

This is different from the one before. By using this type of Ransomware, our Operating System is temporarily locked. We can not turn our computer on until the ransom is paid. But our User Files will not encrypt anything here, it's a bit of a relief. In simple terms, you can change the Boot Settings of the Operating System and prevent the computer from turning on. These were the only two ways. There may be more different ones.


So this is the one in the field where the 'thrill' is in the field is that when it comes to some issue, it's time to find a remedy. So, you may have some things. All right, we need to be scared of this Ransomware. Is that a normal virus guard possible to stop this attack? The answer is impossible. Because this is an oblique structure, it means that there is no unique reputation, so the virus guard can not detect an attack. The other story is that I told them to get that tribute. So you can go to the movies like the soil and get the tidy at you? Credit cards, Pay-Pal requests, or money can be easily trapped. But now they're well trading. They're coming from Bitcoin. It's difficult to catch that promotion. This is because when dealing with Bitcoin, no one can find their identity. Let's talk about it in front of this. That's why they can do whatever they need in any way, without any name.

So somebody else could think of this as if it were possible to find the decryption key. Do we have to find the Decryption key? The answer is not. The decryption key is not exactly the same as I used to say, and several times with Decryption Keys, I get an unbreakable encryption. So far, no one has been able to find a decryption key so far.


That's what Ransomware is. What's going to happen? How powerful it is. First of all, having a little idea is worth looking. Tell me a lot of big talk over this simple story. About these things are thinking of writing the next article. How can we make sure that our files are bothered with these kinds of attacks, and there are some interesting topics in this topic that are not only about the world's interest in this. Just come back with that kind of stuff before I go back...

Sunday, January 14, 2018

Let's learn about GPS (Global Positioning System) technology


GPS, or Global Positioning System, is a Satellite-based Navigation System.


A Navigation System is a way of looking at where you are located by a map. This is carried out by the US Department of Defense's 24 satellite satellites. This was first used in military operations, and later, in 1980, the government allowed civilians to use it. This GPS technology is successful in any part of the world regardless of whether, but 24 hours a day. An important fact is that it is a completely free service.


How does this work?

Every GPS satellite transmits facts to the Earth, travels twice a day on its brakes. GPS receivers use this facts to calculate their place. This calculation is done by comparing the time the GPS sends to the signal from the satellite. It detects the distance between the Receiver and the GPS Satellite. Thus, one receiver receives one receiver using several GPS satellites and maps the receiver's place to the receiver.


The receiver also requires at least two GPS-s at a time to show the place at which it is in two-dimensional mode, in mech and longitudes. Using GPS Satellite 4 or more, you can view your place as 4D, such as latitude, longitude and altitude.

In this way, the receiver receives the speed, direction, path, distance traveled, the distance from the source to the voyage, the sunrise and the sunset when the receiver receives one.


How right is GPS?

Today, the used GPS Receiver is high in size, because of its parallel multi-channel design. Garmin's 12 parallel-channel receivers are able to retrieve data provided by Satellites in a short period and to keep up a strong connection as soon as they are put into action. Garmin® GPS receivers can accurately calculate their place by ascending to 15m from ash.


The WAAS - Wide Area Augmentation System - comes with Garmin GPS receivers that can cut their accuracy to 3 m. WAAS does not have any accessibility tools. It can be further defined through Differential GPS (DGPS) (see above). This DGPS system is supported by a network of fixed towers using beacon transmitters operated by the US Coast Guard. One must use this service as well as a different beacon receiver and beacon antenna.


GPS Satellite System

There are 24 satellites located 12,000 miles over the Earth. These run smoothly and less than 24 hours each satellite travels through two circles. They travel at a speed of 7,000 miles per hour and the satellite is powered by the sun. A battery backup is used to power continuously in the eclipse. Each satellite uses the little rocket boosters to keep track of them.


The following is some information about GPS Satellite.

  • The first GPS Satellite was designed in 1978.
  • The first time a GPS Satellite 24 was established in 1994.
  • Each satellite is capable of operating up to 10 years, and the satellites to be used in the meantime are being produced.
  • One satellite is weighing 2,000 pounds and consists of a 17 foot cross-section of solar panels.
  • They send a transmitter of 50w or less power.
  • These waves emit a range of UHFs of 1575.42 MHz. The FM radio we use uses a range of 88-108MHz.
  • Thus, three information sets are transmitted, such as Pseudorandom codes, Ephemeris data, and Almanac data.
  • Pseudorandom is the code to find each satellite.
  • Ephemeris data indicates that the satellite is in good condition.
  • Almanac data identifies the satellite as to where the satellite is to be at the time of the day.


A very interesting post about GPS technology. If possible, make a comment on this below.

Do not forget to share with others.

Tuesday, December 19, 2017

The story of the computer - Full Tutorial


The calculation always made man a problem. Hence, man tried to use a convenient method, and as a result, he found a manual operating mechanism. This was called "Abacus". It was produced by the Chinese about 2000 years ago.

Abacus


This is a thin-striped wooden frame. The miniature balls are mounted on the scenes. And the lines were crossed. There is another slim collar. There are two pieces of small round balls on top of the top, each bar topping each with seven round rounds. These small balls can be moved according to the rules. They should refer to problems that need to be solved. An Abacus operator can add more speeds to the current calculator.

Russian and Japanese abacus more than Chinese Abacus. But those machines can be performed equally in the same way, and only the rules in which they work can be seen. This horizontal-mounted device is one of the number one enhancement options. Each of these wooden pieces has numbered 1-9 and added the value of each number by adding each number.

Pascaline


In 1642, the calculator discovered by French lawyer Blace Pascal named it. This is called the earliest calculator in the world. Each wheel is made up of 0 to 9 disks in each wheel of the machine, connected to a pinch and wheel. Rotating the rotors accordingly enables the number to be added to the machine.

Charles Babbage


He is a English national. He designed a "Difference Engine" machine. In 1822, its main goal was to compute multiplications and tables. At that time, however, technology had not been so advanced and technically costly planned and abandoned. After that, From 1833 to 1834, he was planning another machine, which was a machine that was steam powered. He called the "Analytical Engine".

A large number of features on the modern computer included him. Unfortunately, this machine could never be manufactured. But Charles Babbage has been able to name the name of the computer in the very top, and today he remembers him as "the father of the computer".

Ada Augusta


Also, "Ada Augusta" developed the idea of computer programs, as a friend and assistant of Charles Babbage's computer software, and as "the first computer programmer" (computer programmer ) Today is also commemorated.

Tabulating Machine


The creation of the TAB is owed by a US citizen. In 1880, Hermann Hollerith. It took about 8 years to produce these kinds of manuscripts. Herman sought to find this machine to help prevent this amount. This made it possible to do a quick calculation.

The world's first computer


His dream planned by Charles Babbage came true after 70 years of his death. Howard Aiken of the Harvard College, Hawaii, Hawaii, USA, in 1930, I.B.M. This machine was developed with a company engineer and started to manufacture this machine. This was a full automatic. This machine was capable of adding and lowering the numbers in a second. It also takes seconds for this count to count. This was the first computer to be called the Automatic Sequence Controlled Computer (ASCC).

Electronic computer


After the ASCC was discovered, its upgrading continued. During World War II, during the Second World War, a tactile gun for the Allied Forces was a prerequisite for shooting targets and was required to find the Electronic Numerical Integrator and Computer (or ENIAC) to fulfill this essential requirement.

This ENIAC computer had a faster speed than the earlier machines. It has the ability to decrypt and add 5000 reductions, 350 upgrades, or 50 split resolutions in a second. But this computer was very large.

John Von


Improvements continued. John Von Neumann has joined in developing the ENIAC. He said that the computer can not only store data and counted results.

He believed that a program could be included to do the instructions in accordance with the instructions given earlier. Six years later, in 1949, the first electronic computer was produced by the University of Cambridge at the University of Cambridge. This was the Electronic Delay Storage Automatic Calculator (EDSAC).

These developments led to the emergence of a modern computer.

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