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The first Sony-branded product, the TR-55 transistor radio, appeared in 1955 but the company name did not change to Sony until January 1958.
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In order to compete against JCV's VHS system, now the common system for home VCRs, Sony released the Betamax system.
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Sony becomes the dominant sale company of the floppy disks, creating a custom 3.5mm format which later became standard.
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By March 31, 2005, Sony had sold 102 million copies of the PlayStation consoles, becoming the first company worldwide to ever sell 100 million gaming consoles.