Graduate about to invest in artificial intelligence calculators (5)
I believe the answer is:
abaci
'calculators' is the definition.
(abacus is a kind of calculator)
'graduate about to invest in artificial intelligence' is the wordplay.
'graduate' becomes 'ba'.
'about' becomes 'c' (abbreviation for 'circa'**).
'to invest in' indicates putting letters inside.
'artificial intelligence' becomes 'ai' ('AI' can be a synonym of 'artificial intelligence').
'ba'+'c'='bac'
'bac' put inside 'ai' is 'ABACI'.
(Other definitions for abaci that I've seen before include "Simplistic adding machines" , "They once reckoned" , "Counters" , "frames" , "You can count on them" .)