A person who enjoys speaking and/or behaving in anachronistic fashion.
1) One who speaks in the ye olde style.
2) Someone who wears old fashioned clothes eg: fop wear, corsets, hoopskirts. Can also mean someone wearing more recent though out of style clothing (from the 70s 80s 90s etc).
3) Anyone using out of date computer technology.
anachronaut: Wo befalls me, mine remote control is mislain! Whither has it gone? Wife, what news of the remote controller?! We must make haste as in but three and twenty minutes I must watch my programmes in the telechamber! O joy of joys, at last it appears! It lay betwixt the cushions of the couching seat! No longer must I endure the horror of two and one half men's situational comedies!