A government-affiliated research institute in Japan says it has developed a chip that blocks viruses before they enter the computer, thus doing away with the need for conventional anti-virus software. The chip would lead to higher processing speeds and could be used widely in networked appliances and cellphones. The team, led by Eiichi Takahashi, a researcher at AIST’s Advanced Semiconductor Research Center, aims to put the technology into practical use within five years. The new system will enhance security by checking viruses at the gate, as opposed to conventional anti-virus programs which are installed onto computers and consequently can check viruses only after they are already downloaded into the computer system. Another advantage over anti-virus software is that the new system will not slow down computer operations because it works independently of the computer. Installed anti-virus software often slow down operations, such as Internet connection speed, while checking viruses. The technology will enable protection of Internet-capable home appliances and cellphones, which are currently vulnerable to viruses because anti-virus software cannot be installed.