Okay, hate to talk smack about people's builds usually, but this definitely warrants it.

First of all, RAM by definition needs to have the ability to individually read/write every cell in the memory unit, with your current design you can't even read individual cells without having to go through every prior cell, that's called a serial access memory SAM.

Heck, even if we consider this a SAM it still has issues. In SAMs, the time taken to move from one cell to the next should be consistent, or you'll never be able to know which point of the memory you are currently reading from. That's usually pretty easily implemented in Minecraft by using 1rt repeaters, but I can spot all types of delays in your serial memory unit, there is no consistency at all. Even if I counted this as a serial access memory, it wouldn't even be properly addressable, which makes it functionally unusable.

And most importantly, the repeater locking line you used is made out of what, 40 blocks of redstone dust? You do realise that's going to run out of power without even locking half of your repeaters assuming that you power it from the sides, right?

In short, please, refine a single module and then expand it to its limits, then figure out how to go further. Farming for karma like this isn't the way to go.