Open

  1. In general, open refers to something that can be accessed.
  2. When referring to computer software, open commonly refers to the process of executing or running a program or accessing or reading a file.
  3. When referring to computer hardware or other hardware devices, open commonly refers to physically removing a compartment, such as removing the computer case cover.
  4. When referring to a network port, open refers to a specific port being enabled so that traffic can be transferred through it.
  5. When using FTP, open is a command used to establish a connection with a remote computer.

Also see: Execute, Network definitions, Open file, Open with