Remember back in 1984 during the aftermath of Atari's "1983 NA Video game crash"? Commodore's founder Jack Tramiel had resigned and took ownership of Atari and made it as Atari Corp. and had revolutionised the Atari gaming industry such as the Atari 2600 Jr., Jaguar, ST and many more. As for Commodore they still competed well with the C64 against the 2600 and not to forgot the ZX Spectrum near the 8-bit era until the new 16-bit M68000 powered computer games appeared near late 1980s.
But the question is would Commodore survived if they didn't lose their core founder, would they had move on if Jay Miner died due to his health problems like his kidney failure? And would it been an end for Atari if Tramiel didn't bought it shares and left Atari bankrupt from the 1983 disaster? Who knows but we cannae change history unless you has a time travelling DMC-12...