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| ZMC-2 | Zmacs | Zmudowski State Beach |
| Zmeu | ZM, (New Zealand) | ZMA |
| ZMODEMZMODEM is a file transfer protocol with error checking and crash recovery. It was developed by Chuck Forsberg. Its transfer rate is similar to YMODEM-G. Like YMODEM-G, ZMODEM does not wait for positive acknowledgement after each block is sent, but rather | ZMCZMC is the U. Navy designation for an airship (Z) of metal-clad (MC) construction. The ZMC-2 was the only airship to carry this designation. |