Two computer programmers are driving on a Highway. They switch on the radio and there is a warning: Please note that a car is driving on highway 75 against the traffic.
The programmer near the driver looks at him and says: One? There are hundreds of them.

While shopping for my first CD player, I was able to decipher most of the technicalese on the promotional signs.
One designation had me puzzled, though, so I called over a salesperson and asked, “What does ‘hybrid pulse D/A converter’ mean?”

“That means”, he said, “that this machine will read the digital information that is encoded on CDs and convert it into an audio signal – that is, into music.”

“In other words this CD player plays CDs?”

“Exactly.”

At a recent software engineering management course in the US, the participants were given an awkward question to answer. “If you had just boarded an airliner and discovered that your team of programmers had been responsible for the flight control software how many of you would disembark immediately?”

Among the ensuing forest of raised hands, only one man sat motionless. When asked what he would do, he replied that he would be quite content to stay onboard.

With his team’s software, he said, the plane was unlikely to even taxi as far as the runway, let alone take off.

An artist, a lawyer, and a computer scientist are discussing the merits of a mistress.

The artist tells of the passion, the thrill which comes with the risk of being discovered.
The lawyer warns of the difficulties. It can lead to guilt, divorce, bankruptcy. Not worth it. Too many problems.

The computer scientist says “It’s the best thing that’s ever happened to me. My wife thinks I’m with my mistress. My mistress thinks I’m home with my wife, and I can spend all night on the computer!”

Apple had a new computer under development. Their project name for it was “Carl Sagan” (I don’t know why).

When the real Carl Sagan learned about this, he was upset. He demanded that Apple stop using his name, even for their private, internal projects.

Apple agreed. They changed the name of the project to “Butthead Astronomer”.