Computer

Explanation: John Vincent Atanasoff invented the digital electronic computer.

Explanation: The World Wide Web was born at CERN.

Explanation: The 1999 Melissa virus was a widely publicized email virus.

Explanation: WhatsApp was founded in 2009 by Brian Acton and Jan Koum.

Explanation: SIM stands for Subscriber Identity Module.

Explanation: Virus' is a Latin word (meaning poison).

Explanation: Google was founded on 4 September 1998.

Explanation: One nibble equals 4 bits.

Explanation: Microsoft was founded in 1975.

Explanation: Jawed Karim, a YouTube co-founder, posted the first video, making him the first YouTuber.