operating systems
What is a hard drive and why is it needed
Each computer has a hard drive or, as it is often called, a hard drive, which is the main place to store all the information used by the computer and its user. The installed operating system, all programs used by the user, and data are stored on the hard disk. The processor takes the information necessary for processing from the hard drive and then writes it back to the media. The amount of information that is stored on a hard disk depends on its size.
The very first models of hard drives allowed storing up to 10 mb of data on their disks, in those days it was a lot. Now modern media can store thousands and tens of thousands of megabytes. The amount of Continue reading
What is RAM memory?
RAM is a random access memory which is in each computer, and is an irreplaceable component. The RAM is fast enough, it exchanges data. RAM is a volatile memory in which, after turning off the PC, the data is erased, because there is no longer a power source needed to store information. RAM is a kind of temporary storage, which constantly receives streams of incoming information, which is processed by the PC processor. A special system bus is used to communicate the processor and other devices with RAM. The memory itself has direct random access. It does not matter where the information is located, the speed of access to it will always be the same. Continue reading
What is a broken pixel?
Owners of LCD monitors and other equipment equipped with screens often encounter problems such as broken pixels, which are a defect. The appearance of the broken pixel is constantly the same and does not change when the picture on the screen changes. They come in several types: white dot, dark dot, color dot. The first and third type can be eliminated, but the second one can’t be removed anyway. When buying an LCD monitor, a new one, and even more so a second-hand one, it is imperative to check it for broken pixels, which are often found in used models, but also in new ones. Continue reading
