Most of the Fortune 500 still use IBM mainframes, which are still the children of the S/360 launched in 1964. The interesting questions include: how long does

Most of the Fortune 500 still use IBM mainframes, which are still the children of the S/360 launched in 1964. The interesting questions include: how long does it take to move off them; how reliable is the move; and what happens to your quarterly results doing a multi-year transition? Another one is: How long is the current CEO going to stick around to manage the process?