A Science Museum of Minnesota Community

Sixty years ago today, in Manchester, England, a room-sized computer known affectionately as "Baby" successfully ran its first calculation using 128k of memory, and ushered in the era of the "modern PC".

Back in 1948, Baby's programmers had a whopping 1024 bits of memory available to work with while today's 1 GB DRAM chip can store about 8 billion bits. You do the math. Or just read the story.