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 Society-Changing Invention of Typewriters. First invented in the 1860s, the typewriter was very popular, and used for any type of writing, with the exception of personal letters and correspondence. By the 80âs, typewriters were going out of use after about 100 years due to new technology being invented.