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

[Gregory Gadow]

Peter Mulholland wrote:

Why does zero come after 9 on the keyboard instead of before 1?

That is actually pretty easy. The earliest typewriters lacked the 1 and 0 keys: typists would use a capital I or a lower case l for 1, and a capital O for 0. This was done to minimize material and production costs, and because the glyphs could easily be made using existing keys and so were considered redundant. There was no exclamation point, either: that was made with a three key combination of single quote, backspace, period. A key for zero started to become common in the 60s. Rather than force millions of typists to relearn their trade, the zero was placed above the O, which is how it came to be at the end of the list. The one key did not become common until the mid 70s; there was much variation with what Shift-1 would be, with the backtick, twiddle and exclamation point being used on different models. Eventually, the exclamation point became standard.

[Dan Neely]

All modern architectures are both. MMX, SSE, on die GPU (especially with openCL) are CISC type features. Die sizes got big enough to have the best of both worlds.

3x12=36 2x12=24 1x12=12 0x12=18

[PIEBALDconsult]

I don't. I don't know what it's for.

[PIEBALDconsult]

Oh, yeah, I recall that there was a function key arrangement of two columns of five keys to the left of the main keypad... where's a picture? Ah, here[^] we go.