(a) Unless specifically prohibited by the articles of incorporation or bylaws, any action required by this Act to be taken at a meeting of the board of directors of a corporation, or any other action which may be taken at a meeting of the board of directors or a committee thereof, may be taken without a meeting if a consent in writing, setting forth the action so taken, shall be approved in writing by all of the directors and all of any nondirector committee members entitled to vote with respect to the subject matter thereof, or by all the members of such committee, as the case may be.
     (b) The consent shall be evidenced by one or more written approvals, each of which sets forth the action taken and provides a written record of approval. All the approvals evidencing the consent shall be delivered to the secretary to be filed in the corporate records. The action taken shall be effective when all the directors or the committee members, as the case may be, have approved the consent unless the consent specifies a different effective date.
     (c) Any such consent approved in writing by all the directors or all the committee members, as the case may be, shall have the same effect as a unanimous vote and may be stated as such in any document filed with the Secretary of State under this Act.