It seems strange to me that the typewriter was so small and yet the early depiction of computers, especially in science fiction, like here, were so huge. However, remember the ENIAC, which we featured in our weather week - well, that did indeed fill an entire room when it was first switched on in 1945.
Another amazing fact is that when this card was issued in 1966, computers were still massive. The first so called "personal computer" was not invented until 1973 - it was designed in France, and was named the Micral N. It was basically a square box, with lights on the front, measuring 45 cm x 45 cm x 15 cm high - weighing in at 12 kilograms. It took another year before a video terminal and a keyboard were available, and you had to buy them separately. You could probably not have produced emoji on this machine, unless you were very good at coding.
Microsoft machines are kind of the missing link here, because from the 1990s onwards, as part of their preloaded fonts, they had three which were pictorial. "Holiday" was, as it suggested, more like tiny Christmas clip art, but "Wingdings" and "Webdings" were little symbols. The problem was that if you were sending a message including them to a friend and that friend was not on a Microsoft machine they would not show up.
This set is in colour, and it is a television tie-in to Gerry Anderson's "Thunderbirds. It was issued with Thunderbirds sweet cigarettes, and it was popular enough that a second series was issued in 1967. However they are sparsely described in our original British Trade Index part two, as just :
THUNDERBIRDS - A SERIES OF 50. Sm. Nd. (50) Album issued ... BAR-95
THUNDERBIRDS - A SECOND SERIES OF 50. Sm. Nd. (50) Album issued ... BAR-96
This text is slightly in our updated British Trade Index, to :
THUNDERBIRDS - A SERIES OF 50. 1966. 65 x 35. Nd. (50) Album issued ... BAR-750
THUNDERBIRDS - A SECOND SERIES OF 50. 1967. 65 x 35. Nd. (50) ... BAR-755
This suggests that there was an album for the first set of cards only - but the packets that contained those cards have no mention of the album (or a price for the sweet cigarettes), whilst the second series were sold in packets that cost 3d. and spoke of the album on the back of those packets - "...obtained from your shopkeeper for 1/- or send us 1/- in stamps or a 1/- P.O. with your name and address in block capitals."