Where Did RAM And ROM Start?

Once upon a time there were mainframes. And mainframes were all there were. Mainframes are the computers used by large institutions. The data on mainframes are processed and the mainframes spew forth responses to queries while the data itself is stored on media. Early computers used cards for input and cards for output and stacks of cards for restoring data streams. Want a printout, run the cards. Then there was tape. Want a printout, run the tape. The tape is magnetic tape, like what we know as like audio tape. The tape was kept on reel spools and plugged into slots of the computer, swappable with other reels. That was the mainframe's storage capability and operations sources up to and including the advent of the mini computer. A mini computer was a small version of a mainframe. It kept the concept of tape but had the portable medium packed into easily handled drums. Then came the micro computer. The micro computer had to have in its shell the instructions that the mini computer and the mainframe computer used to begin and follow its basic operations by. This was solved by formation of a fixed physical module called ROM. Read Only Memory. To do the same portability of the swappable and processing data being processed, there needed to be a storage ability of a module to take information and then purge and replace it with other information. So another physical module called RAM was created. Random Access Memory. This is where ROM and RAM started.

Nice story but for a good discussion of the evolution of computer memory
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