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.
The following is the text of a booklet copyrighted by the IBM Education Department in 1949 and republished by IBM in 1951. The many advantages of the modern IBM Electric Typewriter can be appreciated by reviewing the history of typewriters, the years of research, and the millions of dollars spent on their development.