Arirang (smartphone) Arirang (smartphone) Arirang is a North Korean Android smartphone announced on 10 August 2013. The phone was distributed to local sales points operated by mobile operators such as Koryolink to be sold together with 3G SIMs or as a stand-alone. It is named after the "Arirang" Korean folk song. The Korean Central News Agency (KCNA), North Korea's state news agency, reported that the phone, which utilizes a touch screen and a camera with "high pixels," is produced entirely within North Korea. The phone appears to run a derivative of the Android operating system. Blogger Martyn Williams has expressed skepticism, commenting
Network operating system not based with having a file server or centralized management source. A peer-to-peer network sets all connected computers equal; they all share the same abilities to use resources available on the network. The advantages include: The disadvantages include: Network operating systems can be based on a client–server model (architecture) in which a server enables multiple clients to share resources. Client-server network operating systems allow networks to centralize functions and applications in one or more dedicated file servers. The server is the center of the system, allowing access to resources and instituting security. The network operating system provides the mechanism to