TOS died out really early as disks such as the IBM 2311[?] and IBM 2314[?] became common with the IBM 360 whereas they had been a real luxury on the IBM 7090.
... of 18, 6.9% from 18 to 24, 36.3% from 25 to 44, 25.1% from 45 to 64, and 7.0% who are 65 years of age or older. The median age is 36 years. For every 100 females th ...