The cartoon I watched when I was a kid probably told the story of an old computer.

Cartoon "Computer Wizard"

The joke-loving computer chip and old-fashioned record player that fell to the earth from the electronic star were collected by a little boy in a dilapidated basement. It is connected to the world's Internet, and from time to time it puts people into an electronic world of only 0s and 1s. The four viruses in the computer world are also very funny. Little boys often enter the computer world with computer elves. There are several virus characters in the computer world. Among them, the purple one is the boss, and the yellow one raises his sword and shouts "Attack, attack..."

Try it and see if it is this one