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At the NYSE, BATS, CBOT, NASDAQ, OMX and American Stock Exchange requests for review must be received "within thirty (30) minutes of execution time". [ 5 ] [ 6 ] At the NYSE-Euronext Liffe (Paris, Brussels, Amsterdam), "Where a member has executed an Erroneous trade, he will have a maximum of 30 minutes from the time of execution within which ...
It is only used when the user actually has to wait for the system. For instance, when the user mentally prepares (M) for executing their next physical action only the non-overlapping part of the response time is needed for R because the user uses the response time for the M operation (e.g. R of 2 seconds – M of 1.35 seconds = R of .65 seconds).
The time to seek and depress a key (seek-time) and the time the key is held down (hold-time) may be characteristic of an individual, regardless of the total speed at which they type. Most people take longer to find or get to specific letters on the keyboard than their average seek-time for all letters.
The infinite monkey theorem states that a monkey hitting keys at random on a typewriter keyboard for an infinite amount of time will almost surely type any given text, including the complete works of William Shakespeare. [a] In fact, the monkey would almost surely type every possible finite text an infinite number of times.
To resolve this, the processor in a keyboard debounces the keystrokes, by averaging the signal over time to produce one "confirmed" keystroke that (usually) corresponds to a single press or release. Early membrane keyboards had limited typing speed because they had to do significant debouncing. This was a noticeable problem on the ZX81.
Phrases used by the tech savvy to mean that a problem is caused entirely by the fault of the user include PEBKAC [8] (an acronym for "problem exists between keyboard and chair"), PEBCAK [9] (an alternative, but similar, acronym for "problem exists between chair and keyboard"), POBCAK (a US government/military acronym for "problem occurs between ...
Image credits: Suwi #7. I was working at a daily newspaper and going to law school at night. My immediate boss resented this and kept changing my work schedule to try to mess up my schooling.
This set is used by Linux by default when it detects a PS/2 keyboard that can properly support scan code set 3. [2] The IBM PC AT introduced the "AT" ("set 2") scancodes. On the 84-key AT keyboard these were largely a subset of set 3, with some differences caused by the revised layout (for example, the position and scancodes of the function ...