Question for Jan 4, 2010 - PS

Welcome back, and happy new year! Lets kickstart the new year with an X,Y,Z type question.

X, is a multinational corporation which is one of the few information technology companies with a continuous history dating back to the 19th century. Y was the president of X, who oversaw that company's growth into an international force from 1914 to 1956. Today's question though, is about Z.

Y summarized the X philosophy with a motto consisting of one word, Z. X's first U.S. trademark was for the name "Z" filed as a U.S. trademark on June 6, 1935 with the description "periodical publications". This trademark was filed fourteen years before the company filed for a U.S. trademark on the name X. A biographical article in 1940 noted that "This word is on the most conspicuous wall of every room in every X building. Each employee carries a Z notebook in which to record inspirations. The company stationery, matches, scratch pads all bear the inscription, Z. A monthly magazine called 'Z' is distributed to the employees." Z remains a part of X's corporate culture to this day; it was the inspiration behind naming X's very successful line of computers. In 2008, X Mid America Employees Federal Credit Union changed its name to Z Mutual Bank.

Identify X, Y and Z.