[mlo]

"1980? What’s on the screen, machine language or an early version of mine sweeper?"

It's a memory display program. It allows you to see the individual bytes store in RAM. Very similar to the MS-DOS debug utility.

[mlo]

Or not. Some people are saying it’s a game. I can’t really make out the text. It does look like a debug screen though. Don’t know how fun that game would be. :-)

[dhs12345]

Ascii?

[RansomOttawa]

It's a memory display program.

It's actually the old text-based Star Trek game. If you zoom in on the picture, you can read: "Objective: Destroy __ Klingons in __ turns" (I can't make out the numbers) and "The number of Starbases is 7." The grid on the left that looks like a memory dump is actually a map showing the relative locations of the Enterprise, Klingons, stars, and Starbases.