Email and Unix "write" on a company system that I setup in 1986.
With 'write' it was typical (if my manager in the next office was talking to an attractive customer or interviewing someone) for him to expect the "beep" that proceeds the write message soon after sitting down with my thoughts. (On Wyse 50 Green terminals...)
With 'write' it was typical (if my manager in the next office was talking to an attractive customer or interviewing someone) for him to expect the "beep" that proceeds the write message soon after sitting down with my thoughts. (On Wyse 50 Green terminals...)