The most frequent autonomic symptoms associated with multiple system atrophy are a sudden drop in blood pressure upon standing (orthostatic hypotension), urinary difficulties, and erectile dysfunction in men.
The IBM Selectric typewriter was a highly successful model line of electric typewriters introduced by IBM on 31 July 1961.
A standard typewriter keyboard -- called also QWERTY keyboard . Name derived from the first six letters in the second row on English language computer and typewriter keyboards. The first practical typewriter was patented in the United States in 1868 by Christopher Latham Sholes.