as i understand it, it had conditional jumps but no index registers, self-modifying code, or indirect jumps, so i think you couldn't build subroutines or data structures such as arrays
the lgp-30 was a personal computer tho even if the phrase 'personal computer' was invented later by olivetti's marketing droids
quoting https://www.oldcalculatormuseum.com/c-programma101.html about interviewing its designer by phone
> When it came to talking about Mr. Perotto's assertion that the Programma 101 was the first "personal computer", I expressed my disagreement, saying that the machine was a programmable calculator, not a computer. His voice rose in intensity, and he very firmly stated that the machine was a computer, insisting that it was "not just a programmable calculator". He steadfastly refused to accept the definition of his machines as a programmable electronic calculator. We agreed to disagree (...)