With the continuous improvement of information infrastructures, academia and industry have been constantly exploring new computing paradigms to fully exploit computing powers. In this paper, we propose Meta Computing, a new computing paradigm that aims to utilize all available computing resources hooked on the Internet, provide efficient, fault-tolerant, and personalized services with strong security and privacy guarantee, and virtualize the Internet as a giant computer, that is, “Network-as-a-Computer, NaaC”, or “Meta Computer” for short, for any task or any person on-demand. Meta computing possesses the following three functional characteristics: supporting zero-trust environments, integrating all available computing resources, and configuring meta computers on-demand. In this article, we present an architecture for meta computers and put forward open technological challenges to realize meta computing.