A device attached to a host computer but not part of it, and is more or less dependent on the host. It expands the host's capabilities, but does not form part of the core computer architecture. Some computer peripheral include (Express Card, USB Drive, SD Card Memory Stick, router, external SSD & HDD Drives).

A device attached to a host computer but not part of it, and is more or less dependent on the host. It expands the host's capabilities, but does not form part of the core computer architecture. Some computer peripheral include (Express Card, USB Drive, SD Card Memory Stick, router, external SSD & HDD Drives).

A collection of computers and devices connected by communications channels that facilitates communications among users and allows users to share resources with other users