Wellcome To Ravidu's Blog

Sometimes when we connect the pen to the computer its capacity, there are times when the files inside it are not shown. If you use the pen to exchange files frequently, you may have encountered this problem a lot of the time.   This is happening often caused by virus .Due to those virus, some files may be hidden or selected as system files. That's why they are not shown. Today we will see how to fix this using the command prompt. The first thing to do is access the flash drive which have the issue. For this, open the command prompt and then You have to type the drive letter (it has letters like L, M, N) and enter: (dotted). Now we are inside the flash drive. Now to see the files inside the flash drive, type dir and press enter. This does not show hidden and system files .If you want to see it all Type Dir / a and press Enter. Now type Attrib and hit enter to see what has happened to these files. Then a letter or a few letters will appear...

Before we talk about quantum computers, let's look at what quantum theory is. The atom is the basic building block of matter. The atom is made up of tiny subatomic particles such as electrons, protons, and neutrons.So in an environment with subatomic particles like this, these particles behave strangely. Predicting these behaviors is what happens in quantum science. Quantum theory Quantum theory was first proposed by Max Planck.Also Irwin Schrdinger and Albert Einstein have contributed to these investigations. There are three basic theories of quantum theory. 1 . Superior theory 2. Theory of inconsistency 3. Tangle theory Simply put, these three are .... 1 . Superior theory This is about a state between yes and no. To illustrate this, Schrodinger has proposed a model called the cat concept test.Something like this is happening here, A flask filled with a poisonous substance is placed in a chamber containing a radioactive medium. There is a cat inside th...

The Raspberry Pi computer weighs about 50 grams, about the size of a bank card, but is a small computer that can do almost everything a normal computer can do. This is exclusively designed and distributed in the UK, making it one of the best-selling computers in the UK.Although not well known in Sri Lanka, it is also known as the most used computer by students around the world.      Birth of raspberry The inventor of this computer was a British computer scientist.While working at the University of Cambridge, he noticed that students were poor at programming and understanding the workings of the computer hardware level.So this is how this computer is created.Because it is very cheap .So learners can use it for experiments without any fear. (Founder of Raspberry -eben upton) Computer layout This is a small bank card-like device as shown in the picture above.There is no even a casing when you buy this.But this card contains everything you need to have a computer.So we ...