What is the difference and layout name of this first keyboard:
and this second keyboard:
Second keyboard layout is ANSI (correct me if im wrong)
The first keyboard is Logitech G512, product code (920-008946)
Is the first one considered ISO layout? But on ISO layouts the left shift is smaller but in this case its not? Then what is the difference and what layout name does the first one have?
Those appear to be Logitech G512 "Carbon" gaming keyboards.
The first one is a variant of the ISO layout. Many ISO layouts have a smaller left shift key to accommodate an extra key to the right of it. For example, the ISO-UK layout (105 keys) has a \| key there.
The JIS layout seems to have the same shaped enter key as ISO but with the same sized left-shift as ANSI. However it has a lot of other differences not seen in your first keyboard.
The second one is the ANSI layout (104 keys).
I think these both were first introduced with the IBM Model M keyboard but aspects of the layouts originate with the IBM Model F keyboard with it's characteristically large enter key.
Nowadays almost all keyboards fall into the ISO or ANSI physical layouts, regardless of country specific key-mappings and key-markings.
Even smaller format keyboards like TKL, 75% 70% 65% or 60% layouts keep to ISO or ANSI layouts for the main block of keys.
Really small keyboards like 40% or Planck, whether ortholinear or staggered, don't really fall into either camp. Neither do most, but not all, ergonomic layouts.
