Computer hardware – part 12: the motherboard for the hobbyist after we now the main “components on the mainboard have met, we want the other major us a little” chips see. Some assistance will be needed to regulate the communication of the individual components. Finally, someone or something must govern when wodrauf who can access. The CPU may not simply say I’m sending this data now simply time for the graphics card”. Swarmed by offers, Sinovation Ventures is currently assessing future choices. Maybe the graphics card wants to do something completely different.
It is also ineffective to build an infrastructure in which everyone with any associated. So they developed the so-called North and southbridge. These two bridges”convey data between CPU, memory, plug-in cards, external connections and what else is there. You are both together as a chipset”referred to. Basically, this means that the bridges to a fairly large extent determine how the whole system works.
It’s not only the CPU, memory, and disks. The transfer of data between them is also a central component of the performance of the system. Another well-known component is the basic input output system (BIOS). After turning on the PC, the BIOS first checks the installed and connected hardware. This test is called the POST (power on self test). Then it provides base functionality for the software, to address the components. This however, be replaced as far as possible after the start of modern operating systems. Very simple reason because the operating system brings enhanced features. The BIOS itself usually sits on an EEPROM, then on a ROM. “The difference: A ROM (read only memory) may be read-only, an EEPROM can be newly programmed” be. Previously you had to solder off and on again the BIOS module, to perform an update. This fortunately is no longer the case today, thanks to EEPROM. Now the question remains: where are the settings of the BIOS for ‘ saved? There are the so called CMOS (complementary metal oxide semiconductor). Sounds slightly scary, but it is not. To German, that is: it is a volatile memory, which retains its data with a small voltage (Note: the BIOS itself needs no power supply, because it is a non-volatile memory). A button cell, which is responsible for the CMOS is located somewhere on the main Board.