Computer was originally designed as the ideal companion who was and had to facilitate the work related to computer processes or "digesting" a large amount of information.Then it was designed operating system (already to facilitate the work with the computer).They represented (and still represent) the various interrelated sets menu, which perform the essential functions.It was a breakthrough, because no longer had to "drive" command manually, it was enough to click the mouse a few times, and all - action is performed.
Despite the fact that it was a big step forward in the field of operating systems software, but with time and that was not enough - too much time spent on the search for the desired item in the menu.For example, to copy or move a file from one place to another by using the menu system, it spent about a minute.And then the developers have introduced a combination of "hot" keys, which replaces all of these actions and to reduce the time of this common operations in more than 3 times.However, this had little to upgrade the keyboard: the keys have been added - "Ctrl", and later - "Windows".The first involves the combination of the user, the second - system actions (system and custom shortcut mac os achieved by using the button "mac").
But this did not stop the developers, because in a short time, some users felt uncomfortable standard combinations.Then, in the operating system adds the ability to assign your own keyboard shortcuts to any action that would greatly facilitate and speed up the computer.
Now PC users around the world every day by hundreds of times using the most common shortcut keys "ctrl + C" or "ctrl + V" and do not even think about the existence of other useful features.And in each of their operating system ten.Moreover, each separately installed program has its own combination.Of course, remember all of them is not possible (and whether it is, in the long run?), But podcherpnut for myself a couple of action is quite possible.To do this, go to the appropriate help topic, and carefully read the text.
Speaking about the main competitor to Windows as the operating system - the operating system, Mac OS, we can not neglect the issue of short combinations to facilitate the user's work.All of them are almost identical, but have one major caveat, which depends on the keyboard features of the computer that does the work for them is not so easy.She has only one control button and any combination of keys (mac + alphabetic or numeric keys) can create some confusion in the work.However, users of this system must have already developed appropriate habits.
Finally it is worth to say about another aspect of Windows.System keys are either the left or right side of the keyboard.It may be assumed that they are designed to duplicate the banal, but in some cases a combination of left keys may differ from the opposite.