During an episode of the popular British comedy panel show QI, host Stephen Fry demonstrated how much computer memory has advanced:
Fry displays a core memory module from the 1960s that is about the size of a CD-ROM drive. He explains that it held one kilobyte of memory. Then he drops a tiny Micro SD Card in front of it. It stores 128 gigabytes which is equivalent to 128,000,000 of the core memory modules weighing about the same as “six-and-a-half Ark Royal aircraft carriers.”
My own memory lane starts with 128 bytes (not kilobytes or gigabytes, just bytes) of memory in my Super Elf single-board computer to now having a NAS device in my home that has over 20 terabytes of storage.