In game consoles, optical discs like CDs and DVDs became the norm for distribution in the fifth and sixth generation over EPROM cartridges, and though they offered more storage, they accessed data slower. Speeds improved over time, but there was always a bottleneck, so the seventh generation added the ability to install some of the game data to the console’s now-standard internal hard drive. That eventually evolved in the eighth generation to full games having to be installed to
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