I would choose five or six devices that became popular in the 2000s and look them up online. Find out when each was released and what they contributed.
Here is a list to get you started:
Game console, like Xbox or PlayStation Handheld game like Nintendo DS Apple iPhone smartphone Android smartphone (Samsung?) Google Chromebook laptop Apple iPad Amazon Alexa Smart Televisions
If you want to include the 1990s devices then you could also discuss: Blackberry phones Digital pagers Nokia Flip Phones
