Parts of a typical personal computer

Learn the hardware parts of computer

Here we see the different parts of a typical personal computer. The sygrchonoi computers have their roots in '40s America. A typical personal computer, even today, based on the principles that founded the John von Neuman (1903 - 1957). The Neuman singled computer in the following 5 parts:
Processor
Login
Exit
Cache
Permanent memory
Motherboard) and system devices The motherboard is the foundation of a modern computer system. If the processor is the "brains" of the computer, then we could say that the motherboard is the "central nervous system. The main parts of a motherboard are: Motherboard: The motherboard is the main circuits of the computer system. Here is what sit the processor, main memory, cache memory, graphics cards, channels and connectors linking the peripheral devices. System Chipset and auditors: The chipset and rest of the system circuit is the "intelligence" of the motherboard. His job is is to direct the movement and control the flow of information into the computer. These circuits control the processor accesses memory, the data flow to and from peripheral devices and communication lines. The chipset is an important part of every computer, since it plays an important role in determining what features your computer supports. For example, what processors can be used, what types of memory, how fast it can run the computer and what channels can we use, all are directly dependent on the chipset. Computer channels: The channels are electrically channels through which, communicate with different parts of the computer. The physical part of the channel, what we see when we look into the motherboard is a set of jacks on the back of the computer, where we put the graphics card, sound card and all cards of the system. Through these channels, the graphics card gets information from the processor, the processor stores data on the hard disk, etc. The architecture chosen for each of these channels have a major impact on the overall performance of the computer and the selection of different cards and devices, we can use. Basic Input Output System (BIOS): The basic system of E / E is a program that is built into the hardware of the computer. It is the lowest level program that runs within the computer. Its mission is to act as an intermediary between the hardware and software. Acting in this way, the software does not need to do different things on each computer and is why the operating system is loaded on all machines. The BIOS is what runs when you open the computer that loads the operating system. It also allows us to set different parameters to control the computer. Cache: The cache is a small high speed memory, which is placed between the processor and main memory system. The value of memory is its speed, which is much higher than the main memory. Each time the processor requests a quantity of data in memory, the system first checks the cache to see if the information is there. If yes, then read it from there in less time than if it is read from main memory. If not, then the data read from main memory and processor dinotai but also placed in the cache on the processor where the xanachreiastei in the near FUTURE. System Resources: System Resources are not the actual physical devices. There is nothing that we see in a computer. But it is very important for two reasons. First, show how organizing and accessing the various devices. Secondly, is one of the most common areas in which computer users have problems (conflicts). There are 4 different types of such sources: Holidays (Interrupts / IRQs): A device to perform a task, calls the attention of the processor. To request this attention, it uses some special signals, called vacation (Interrupt ReQuests / IRQs). Under eidanikes conditions, each device has its own number off. If two devices have the same number, it shows a conflict. However, newer technologies make it possible to have multiple devices with the same number of break. Channels random access memory (/ Direct Memory Access (DMA) Channels): Some devices have the ability to read directly from main memory instead of asking the processor to do this for them. This is something that improves system performance because the processor is left free to do other work. To do this apparatus, using a direct memory access channels. Each device has its own such a channel. Addresses / O: a computer devices exchange information with the system, placing data in a specific area of main memory. For example, when you pressed the button "M" on the keyboard, it deposited in a specific area of memory to the processor to deal with him. So each device has its own area in the main memory, which is defined by an address. Addresses memory: Similar to the addresses I / O devices use many blocks of memory as a standard part of their operation, may for example mapping where the BIOS code or use an area of memory to hold temporary data using