Talk:Turbo button

message: It probably doesn't add anything to the article but I remember that On the Mega Drive (II) (overseas known as a Sega Genesis), you could get 3-button controllers with an additional row of buttons for six buttons total - rather confusingly only emitting three signals, unlike actual six-button controllers. The upper row of buttons were "turbo buttons" which pulsed quickly as described in the article, and had adjustable speed. For me as a small boy this was terrible, when my neighbour had one and I didn't. In Street Fighter II (turbo champion edition) he started picking characters like E Honda, who do special attacks if you just hold down one of the turbo buttons. (Minimum effort, maximum advantage. Of course, I promised to not play with him any more if he did that kind of rubbish - he stopped*) Anyway, I digress. The controller was called a pro-turbo controller or something to that effect.... Ah, it was so long ago...
: And even after stopping the cheap playing, he still beat be 99.999% of the time that we played that game. Couldn't handle losing ;) For the record I came to read about the turbo button on the 80486's case, not the turbo button on a control pad. 125.236.211.165 (talk) 03:01, 1 March 2009 (UTC)
thread_title:  Genesis 

message: Modern PCs still have the remnants of a turbo button. Granted, the clock speed of a PC no longer directly controls the speed of animation, as most multimedia applications' speeds are tied to the timer, video refresh, or audio playback. Nor does it have a button on the case. But PC operating systems still have a "power management settings" form, which has the same end result: a user-accessible way of underclocking a powered-on PC. --Damian Yerrick (talk | stalk) 23:18, 30 November 2009 (UTC)
thread_title:  Turbo button analog in modern PCs 

message: It seems that there is something that this article could and should make much more clear about the original use of the “Turbo” switch on PCs.  I could write it up, but it would all be from memory, with no sources to cite, so it would surely constitute “Original Research”.   The original IBM PC, and its immediate successors, all ran an 8088 at 4.77 MHz.  As was common at the time on all personal computer platforms, much software was written on the assumption that that was the processor and speed on which it would be run, and depended on timing loops where necessary to control the speed at which the program would run.  This was particularly relevant to interactive games, which would become unplayable if they ran too fast, or to any software that needed to perform timing-sensitive operations.
  When it became common for PCs to run faster than the original 4.77 MHz, such timing-sensitive software became unusable.  Thus, the “Turbo” button came to be, which would slow the computer down to 4.77 Mhz so that it would run at the same speed as the original PC, and be able to run software that depended on the CPU speed for timing purposes.
  Of course, as the technology advanced, and we got different, more advanced descendants of the 8088 with entirely different timing characteristics, and typically ran them at much higher speeds, the “Turbo” button ceased to be useful for its original purpose; even in “non-turbo” mode, such a computer still wouldn't have the right timing characteristics to properly run software that depended on the assumption that it was running on a 4.77 MHz 8088.  But the “Turbo” button remained a feature of PCs for many, many years afterward, always providing, for no longer any real purpose, a way to slow the computer down to something less than its normal, optimal speed.
Bob Blaylock (talk) 20:45, 5 September 2011 (UTC)
thread_title:  Origin of &ldquo;Turbo&rdquo; switch on early PCs that ran faster than the original 4.77 MHz. 

message: While growing up, most computers I saw, of the ones that had a turbo button, actually had a numerical display that changed from 33 to 66Mhz. I do remember though, at least one instance that had jumpers to define what the double 7-segment display would show, so I guess it is possible that due to a preference of the people assembling computers where I lived back then, instead of displaying "HI"/"LO" they made them display the actual numbers associated with the two modes. --TiagoTiago (talk) 08:23, 13 March 2015 (UTC)
thread_title:  33/66Mhz