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At 17, Bill Gates formed a venture with Steve Ballmer called Traf-O-Data to make traffic counters based on the Intel 8008 processor.
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(freebsd section 1)
man page for revoke

REVOKE(1)						    BSD General Commands Manual 						 REVOKE(1)

revoke -- revoke a character device SYNOPSIS
revoke file ... DESCRIPTION
The revoke program revokes the character devices using revoke(2). When used on a TTY, calls like read(2), write(2) and ioctl(2), will be aborted immediately, effectively causing login sessions to be terminated. SEE ALSO
revoke(2) HISTORY
The revoke program first appeared in FreeBSD 8.0. AUTHORS
Ed Schouten <> BSD
June 15, 2009 BSD

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