How a computer works

To work with a computer is not necessary to understand all the technical details and complex
mechanisms by which computer fulfills its function. However, the understanding of the basic principles of
very useful for every user who wants to look at the possibilities and limitations of today's
computer. We will describe what it is that leads to the computer and its functions are performed. All the elements
on the motherboard are connected to a group of lines that are called highways. Arterial roads
electronic signals vary by motherboard coming to all the elements that are needed. For the sake of
higher-speed highway consists of several parallel lines, so that a larger group of data transmitted
simultaneously. Since all elements use the same bus for transmitting and receiving signals, their
operation is synchronized oscillator which generates regular intervals in tact. Clock signal is
power lines spread across the motherboard and initiate simultaneous execution of periodic
natural action of all parts simultaneously, like a steady movement of blood through the arteries in
throughout the body during heart failure. Stroke ranges from a few dozen to a few hundred
megahertz (1 MHz = one million cycles per second), depending on the technology of the panel.
How is your computer running? The uniform intervals, with the consent of the clock, the microprocessor via
Bus takes a row from one data memory and then executes the next few bars
action that this information is defined. Each of these data is the so-called elementary. Mechanical
instructions, or code which defines any action that the microprocessor can execute. It can
be a requirement to continue reading instructions from elsewhere in memory, collecting data
are on the set of memory and more. There are hundreds of possible instructions, but
they mostly all very elementary, so that the microprocessor can execute them in a few bars.
When finished processing one instruction, the microprocessor processes the next, and so the program is running.
Thousands and millions of these elementary instructions are executed every second, and the policies and
carefully arranged set of instructions called a program.
If the execution of the program was reduced to the interaction of microprocessors and memory practical,
tangible results would be. Here come the card plugged into the motherboard slots. They
have access to the motherboard via a special bus, where we will talk about later.
Cards periodically send a request through the bus or waiting to be activated through it to
received or sent any information. That reflects the content of the video card memory
reserved for storing images in its own memory and the data from it into a video signal which
regular intervals to monitor broadcasts. And other cards or modules on the motherboard
control your external devices so that the ultimate effect of the admission or computer display
signals registered user, all in accordance with the course of the program that is currently being executed and
operating system that oversees the entire operation.
Increasing the clock speed on one console does not mean that the whole computer run faster for the same
relationship, because some parts have their own response time and can not follow each stroke. For example, the slow
or memory card will hold back the whole computer, because other elements have to wait her time
response. On the contrary elements faster and not necessarily to speed up your computer, because other
elements can not catch up. Therefore, it is important that your system is composed of components which by
its characteristics correspond to the common requirements in terms of speed, and they correctly
configured during installation (this should be an expert to do).