The last one would seem to be a Spectravideo SV-328.
A topical image considering other posts at the moment
A few of Sinclair ZX-81's came out with rubber raised keys (rare), but I THINK these were orange not blue.
It's not a zx81, every key as about 3-5 different functions, and they're grey, black and red on the standard model. I have heard tell of the mythical rubber keyed ones but never seen them.
The top one looks like a Mattel Intellivision Enhanced Computer System (ECS) keyboard. The American ones in my collection match the styling of the whitish Intellivision II, but I believe the European/Aussie ones had that brownish background as shown in that photo.
The second one is definitely an Atari system, probably some ST model. The third is also definitely a Spectravideo keyboard, most likely either the 328 or 728.
.....
The first one's tough. I thought at first Mattel Aquarius or one of the Panasonic models, but I don't think so....
The last one is something French, due to the AZERTY layout and that numbers are on the shifted row. What it is or whether it is domestic or imported, localized computer I can't tell.
Edit: Bingo! Thomson TO9. If you win something, you'll have to share it with the VCF community. ;-)