Text files may be opened with a basic text editor program such as ________

________________ is a PVC packet-switching technology that offers WAN communication over a fast, reliable, digital link. It was developed from X.25 and ISDN technology.

Fill in the blank(s) with the appropriate word(s).

A ____ is a credit card-sized plastic token that has a special machine-readable key embedded in its surface.

A. smart card B. chip card C. magnetic card D. hybrid card