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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 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
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        • 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
                          0
                          • P PIEBALDconsult

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

                            W Offline
                            W Offline
                            Wayne Gaylard
                            wrote on last edited by
                            #21

                            What do you use the Compose key for now then ?

                            ...and I have extensive experience writing computer code, including OIC, BTW, BRB, IMHO, LMAO, ROFL, TTYL.....

                            P 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
                              #22

                              I personally think the keys should start at F0 instead of F1.

                              ".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

                              L G J 3 Replies Last reply
                              0
                              • realJSOPR realJSOP

                                I personally think the keys should start at F0 instead of F1.

                                ".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

                                L Offline
                                L Offline
                                Lost User
                                wrote on last edited by
                                #23

                                I've often wished I had access to an Eff Oh key.

                                Every man can tell how many goats or sheep he possesses, but not how many friends.

                                I 1 Reply Last reply
                                0
                                • N NormDroid

                                  VT220 had 20 Fn keys.

                                  Software Kinetics - The home of good software

                                  L Offline
                                  L Offline
                                  Luc Pattyn
                                  wrote on last edited by
                                  #24

                                  I doubt that. Picture here[^]. :)

                                  Luc Pattyn [Forum Guidelines] [My Articles] Nil Volentibus Arduum

                                  Please use <PRE> tags for code snippets, they preserve indentation, improve readability, and make me actually look at the code.

                                  N 1 Reply Last reply
                                  0
                                  • L Luc Pattyn

                                    I doubt that. Picture here[^]. :)

                                    Luc Pattyn [Forum Guidelines] [My Articles] Nil Volentibus Arduum

                                    Please use <PRE> tags for code snippets, they preserve indentation, improve readability, and make me actually look at the code.

                                    N Offline
                                    N Offline
                                    NormDroid
                                    wrote on last edited by
                                    #25

                                    Oh like this? VT320/VT220[^] and this http://en.wikipedia.org/wiki/LK201[^] ;P

                                    Software Kinetics - The home of good software

                                    1 Reply Last reply
                                    0
                                    • L Lost User

                                      I've often wished I had access to an Eff Oh key.

                                      Every man can tell how many goats or sheep he possesses, but not how many friends.

                                      I Offline
                                      I Offline
                                      Ian Shlasko
                                      wrote on last edited by
                                      #26

                                      Maybe we should go back to 24 keys, but use letters instead of numbers... FA, FB, FC, FD... And the-key-formerly-known-as-F21 should be a shortcut for Kill Process.

                                      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

                                        D Offline
                                        D Offline
                                        Dave Parker
                                        wrote on last edited by
                                        #27

                                        *shrugs* dunno. My first computer was a C64 with 8 function keys though. After that I had an Amiga which had 10 (though it did have separate dedicated keys for "Help" and maybe a few other things). My latest keyboard (which I can't currently use due to driver issues and think I need to reinstall windows to get the damn thing working) has 24 - F1 to F12 and G1 to G12. Though the G keys are programmable macro ones which I've never really found a use for.

                                        1 Reply Last reply
                                        0
                                        • R R tsumami

                                          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 Offline
                                          realJSOPR Offline
                                          realJSOP
                                          wrote on last edited by
                                          #28

                                          On the keyboard I'm using, there is room over the backspace key for a 13th F key, even with the little gap that separates every fourth key.

                                          ".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

                                          1 Reply Last reply
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