<p>It is possible to provide a liquid container capable of surely preventing write of erroneous information into a memory chip by the affect of a local noise which may be caused in the surrounding. An ink cartridge (11) can read information from a control device of an ink jet type recording device and write information into a memory chip (21) provided in a container (12) for containing a liquid. The ink cartridge (11) includes an oscillation circuit (26) for outputting a signal of a predetermined frequency in response to the drive signal oscillated by a circuit of the ink jet type recording device side.</p>
