Many people prefer to save important information (photographs, work files and other documents) on DVDs. As such, they do not have an expiration date, but, nevertheless, due to any mechanical damage, they fail. The reasons may be the most commonplace:
scratching physical deterioration; low quality of the material from which the disk was made.
Reading and copying information in such cases is impossible, but there are ways and programs to help deal with this problem.
Two main types of possible problems should be distinguished: logical malfunctions and surface damage, as a Continue reading
BIOS setup is very important for every computer, because stability and speed of PC operation completely depend on it. BIOS is a kind of software firmware located in the chip of the computer motherboard and controls its system operation. The BIOS monitors the operation of the processor, cooling fans and all other devices that are part of the system unit. If you correctly configure the BIOS, you can achieve higher performance or make the necessary changes for the work, so every advanced PC user should understand all the BIOS settings, which we will talk about.
How to enter and exit BIOS Continue reading
System unit: internal content
The main component of any computer is the system unit, since it is in it that all the important elements and nodes are located, due to which the PC is able to fully function. The system unit is a metal box (case), “stuffed” with certain contents. In particular, the system contains:
electronic circuits that control the operation of the PC (RAM, or OP, processor, motherboard, device controllers, and so on);
drives on hard and flexible magnetic disks, optical drives;
a power supply unit that converts the AC voltage of the network into a low DC voltage necessary for the operation of electronic circuits and drive motors of drives and so on; Continue reading