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  3. Why There is 12 Function key on Key board? [modified]

Why There is 12 Function key on Key board? [modified]

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  • A Offline
    A Offline
    Ali Taghvajou
    wrote on last edited by
    #1

    Do any one know the philosophy of existing 12 function key F1-F12 on key board? why it is not 14 or 10? I searched and found it was 24 at first and Over time it reduced and now is 12. But Not Convinced, yet! Any Story or Reason?? :confused::confused:

    modified on Friday, May 20, 2011 8:50 AM

    R N P R realJSOPR 18 Replies Last reply
    0
    • A Ali Taghvajou

      Do any one know the philosophy of existing 12 function key F1-F12 on key board? why it is not 14 or 10? I searched and found it was 24 at first and Over time it reduced and now is 12. But Not Convinced, yet! Any Story or Reason?? :confused::confused:

      modified on Friday, May 20, 2011 8:50 AM

      R Offline
      R Offline
      RC_Sebastien_C
      wrote on last edited by
      #2

      That's how many IBM could fit on their original PC keyboard layout? (just a guess)

      1 Reply Last reply
      0
      • A Ali Taghvajou

        Do any one know the philosophy of existing 12 function key F1-F12 on key board? why it is not 14 or 10? I searched and found it was 24 at first and Over time it reduced and now is 12. But Not Convinced, yet! Any Story or Reason?? :confused::confused:

        modified on Friday, May 20, 2011 8:50 AM

        N Offline
        N Offline
        Nish Nishant
        wrote on last edited by
        #3

        Used to be 10 and then they added two more. I've never seen a 24 function keyboard.

        Regards, Nish


        Are you addicted to CP? If so, check this out: The Code Project Forum Analyzer : Find out how much of a life you don't have! My technology blog: voidnish.wordpress.com

        A N 2 Replies Last reply
        0
        • A Ali Taghvajou

          Do any one know the philosophy of existing 12 function key F1-F12 on key board? why it is not 14 or 10? I searched and found it was 24 at first and Over time it reduced and now is 12. But Not Convinced, yet! Any Story or Reason?? :confused::confused:

          modified on Friday, May 20, 2011 8:50 AM

          P Offline
          P Offline
          PIEBALDconsult
          wrote on last edited by
          #4

          Arbitrary. My LK201 has F1 through F20, plus PF1 through PF4. :-D

          A W 2 Replies Last reply
          0
          • A Ali Taghvajou

            Do any one know the philosophy of existing 12 function key F1-F12 on key board? why it is not 14 or 10? I searched and found it was 24 at first and Over time it reduced and now is 12. But Not Convinced, yet! Any Story or Reason?? :confused::confused:

            modified on Friday, May 20, 2011 8:50 AM

            R Offline
            R Offline
            R tsumami
            wrote on last edited by
            #5

            Never realy thougth about it, my geuss would be 12 fit perfectly above the normal keys.

            saru mo ki kara ochiru (even monkeys fall from trees) Usualy i'm that monkey. If you want an intelligent answer, Don't ask me. To understand Recursion, you must first understand Recursion.

            realJSOPR 1 Reply Last reply
            0
            • A Ali Taghvajou

              Do any one know the philosophy of existing 12 function key F1-F12 on key board? why it is not 14 or 10? I searched and found it was 24 at first and Over time it reduced and now is 12. But Not Convinced, yet! Any Story or Reason?? :confused::confused:

              modified on Friday, May 20, 2011 8:50 AM

              realJSOPR Offline
              realJSOPR Offline
              realJSOP
              wrote on last edited by
              #6

              To give people practice writing the word "Function", which you apprently still need...

              ".45 ACP - because shooting twice is just silly" - JSOP, 2010
              -----
              You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
              -----
              "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997

              P 1 Reply Last reply
              0
              • R R tsumami

                Never realy thougth about it, my geuss would be 12 fit perfectly above the normal keys.

                saru mo ki kara ochiru (even monkeys fall from trees) Usualy i'm that monkey. If you want an intelligent answer, Don't ask me. To understand Recursion, you must first understand Recursion.

                realJSOPR Offline
                realJSOPR Offline
                realJSOP
                wrote on last edited by
                #7

                Actually, 13 would fit...

                ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                -----
                You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                -----
                "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997

                R 1 Reply Last reply
                0
                • N Nish Nishant

                  Used to be 10 and then they added two more. I've never seen a 24 function keyboard.

                  Regards, Nish


                  Are you addicted to CP? If so, check this out: The Code Project Forum Analyzer : Find out how much of a life you don't have! My technology blog: voidnish.wordpress.com

                  A Offline
                  A Offline
                  Ali Taghvajou
                  wrote on last edited by
                  #8

                  Imagine u r right! why 10 why not 9? why then 12 not 14?

                  N 1 Reply Last reply
                  0
                  • A Ali Taghvajou

                    Do any one know the philosophy of existing 12 function key F1-F12 on key board? why it is not 14 or 10? I searched and found it was 24 at first and Over time it reduced and now is 12. But Not Convinced, yet! Any Story or Reason?? :confused::confused:

                    modified on Friday, May 20, 2011 8:50 AM

                    H Offline
                    H Offline
                    Hans Dietrich
                    wrote on last edited by
                    #9

                    I'm guessing because that's how many the 3270 had: http://en.wikipedia.org/wiki/Function_key[^]

                    Best wishes, Hans


                    [Hans Dietrich Software]

                    A 1 Reply Last reply
                    0
                    • realJSOPR realJSOP

                      Actually, 13 would fit...

                      ".45 ACP - because shooting twice is just silly" - JSOP, 2010
                      -----
                      You can never have too much ammo - unless you're swimming, or on fire. - JSOP, 2010
                      -----
                      "Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass." - Dale Earnhardt, 1997

                      R Offline
                      R Offline
                      R tsumami
                      wrote on last edited by
                      #10

                      With people complaining that instead of hitting f1 they hit esc?

                      saru mo ki kara ochiru (even monkeys fall from trees) Usualy i'm that monkey. If you want an intelligent answer, Don't ask me. To understand Recursion, you must first understand Recursion.

                      realJSOPR 1 Reply Last reply
                      0
                      • A Ali Taghvajou

                        Imagine u r right! why 10 why not 9? why then 12 not 14?

                        N Offline
                        N Offline
                        Nish Nishant
                        wrote on last edited by
                        #11

                        Ali Taghvajou wrote:

                        why 10 why not 9?

                        10 is a nice round number and one that naturally occurs to designers/technicians because of its association with the decimal base. So they automatically chose it over arbitrary numbers like 9 or 11. Later they tried to squeeze in 2 more and got 12. 14 would have been nice but it would have crowded the keyboard layout. These days it does not matter much.

                        Regards, Nish


                        Are you addicted to CP? If so, check this out: The Code Project Forum Analyzer : Find out how much of a life you don't have! My technology blog: voidnish.wordpress.com

                        D 1 Reply Last reply
                        0
                        • A Ali Taghvajou

                          Do any one know the philosophy of existing 12 function key F1-F12 on key board? why it is not 14 or 10? I searched and found it was 24 at first and Over time it reduced and now is 12. But Not Convinced, yet! Any Story or Reason?? :confused::confused:

                          modified on Friday, May 20, 2011 8:50 AM

                          R Offline
                          R Offline
                          RC_Sebastien_C
                          wrote on last edited by
                          #12

                          Design flaw, it should be 42 :)

                          1 Reply Last reply
                          0
                          • H Hans Dietrich

                            I'm guessing because that's how many the 3270 had: http://en.wikipedia.org/wiki/Function_key[^]

                            Best wishes, Hans


                            [Hans Dietrich Software]

                            A Offline
                            A Offline
                            Ali Taghvajou
                            wrote on last edited by
                            #13

                            I've read it completely twice! No exact and scientific reason!

                            1 Reply Last reply
                            0
                            • P PIEBALDconsult

                              Arbitrary. My LK201 has F1 through F20, plus PF1 through PF4. :-D

                              A Offline
                              A Offline
                              Ali Taghvajou
                              wrote on last edited by
                              #14

                              yes, 24 function key.

                              1 Reply Last reply
                              0
                              • N Nish Nishant

                                Used to be 10 and then they added two more. I've never seen a 24 function keyboard.

                                Regards, Nish


                                Are you addicted to CP? If so, check this out: The Code Project Forum Analyzer : Find out how much of a life you don't have! My technology blog: voidnish.wordpress.com

                                N Offline
                                N Offline
                                NormDroid
                                wrote on last edited by
                                #15

                                VT220 had 20 Fn keys.

                                Software Kinetics - The home of good software

                                L 1 Reply Last reply
                                0
                                • A Ali Taghvajou

                                  Do any one know the philosophy of existing 12 function key F1-F12 on key board? why it is not 14 or 10? I searched and found it was 24 at first and Over time it reduced and now is 12. But Not Convinced, yet! Any Story or Reason?? :confused::confused:

                                  modified on Friday, May 20, 2011 8:50 AM

                                  CPalliniC Offline
                                  CPalliniC Offline
                                  CPallini
                                  wrote on last edited by
                                  #16

                                  Because the function key design chief engineer at IBM had previous experiences in egg-packing companies. :rolleyes:

                                  If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
                                  This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
                                  [My articles]

                                  In testa che avete, signor di Ceprano?

                                  A 1 Reply Last reply
                                  0
                                  • CPalliniC CPallini

                                    Because the function key design chief engineer at IBM had previous experiences in egg-packing companies. :rolleyes:

                                    If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
                                    This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
                                    [My articles]

                                    A Offline
                                    A Offline
                                    Ali Taghvajou
                                    wrote on last edited by
                                    #17

                                    U joking or it is real?? any doc if real?

                                    CPalliniC 1 Reply Last reply
                                    0
                                    • A Ali Taghvajou

                                      Do any one know the philosophy of existing 12 function key F1-F12 on key board? why it is not 14 or 10? I searched and found it was 24 at first and Over time it reduced and now is 12. But Not Convinced, yet! Any Story or Reason?? :confused::confused:

                                      modified on Friday, May 20, 2011 8:50 AM

                                      I Offline
                                      I Offline
                                      Ian Shlasko
                                      wrote on last edited by
                                      #18

                                      Ali Taghvajou wrote:

                                      Do any one know the philosophy of existing 12 function key F1-F12 on key board?
                                      why it is not 14 or 10?

                                      Because it's 12. It's 12 because enough computer manufacturers used 12 that it became standard. In the old days, different computers had different numbers of function keys. Now, it's pretty standard... ...but System.Windows.Input.Keys still has enum values up to F24.

                                      Proud to have finally moved to the A-Ark. Which one are you in?
                                      Author of the Guardians Saga (Sci-Fi/Fantasy novels)

                                      1 Reply Last reply
                                      0
                                      • A Ali Taghvajou

                                        Do any one know the philosophy of existing 12 function key F1-F12 on key board? why it is not 14 or 10? I searched and found it was 24 at first and Over time it reduced and now is 12. But Not Convinced, yet! Any Story or Reason?? :confused::confused:

                                        modified on Friday, May 20, 2011 8:50 AM

                                        Mike HankeyM Offline
                                        Mike HankeyM Offline
                                        Mike Hankey
                                        wrote on last edited by
                                        #19

                                        12 is used to confuse Rednecks since we count with our fingers.

                                        Semper Fi http://www.hq4thmarinescomm.com[^]
                                        www.jaxcoder.com[^] WinHeist

                                        1 Reply Last reply
                                        0
                                        • A Ali Taghvajou

                                          U joking or it is real?? any doc if real?

                                          CPalliniC Offline
                                          CPalliniC Offline
                                          CPallini
                                          wrote on last edited by
                                          #20

                                          Well, he wrote the documentation on old newspapers sheets (i.e. the former 'devices' for egg-packing tasks) and I don't know if it survived... :-\

                                          If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
                                          This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
                                          [My articles]

                                          In testa che avete, signor di Ceprano?

                                          1 Reply Last reply
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