|That's strange. I always thought Dartmouth BASIC made its first appearance in 1964 which is only 46 years ago. 60 years ago computers where hardly out of the experimental stage.|
As the original Dartmouth BASIC was an an 8 bit interpreted language you will have difficulty getting anything like that to-day. The nearest thing to that will be Microsoft GW-BASIC which even in the 1970s had moved on a bit from Dartmouth BASIC. Still an interpreted language though. To run GW-BASIC you will need a 16 bit MS-DOS environment. There are other versions of BASIC, some even compiled versions, each version getting further and further away from Dartmouth BASIC.
Renewing skills from 60 years ago as far as computers go is a bit of a fruitless exercise. If you haven't been involved with computers for the last 60 years you have a very steep learning curve. You would be betters learning a more modern implementation of BASIC like Visual Basic. It is a lot different than Dartmouth BASIC but a knowledge of BASIC programming techniques and it shouldn't be too difficult.