User's Manual information: Memory Chips
Memory Chips (or just Chips) are similar to microSD cards, and are typically about the size of a stamp, and contain up to an exabyte of data. They are uniformly gray, with no ornamentation, and cannot be taken apart once put together. After being installed into a Unit, the Chip runs a one-time program that prevents the Unit from touching the area the Chip was installed into, to prevent data corruption. There are two things that make Chips unique compared to other data storage devices.
The first is that all data contained on a Chip is converted into one of several lossless, unique formats. For example, a Unit's memories of their "life" before being purchased are stored as .mmry_long, and may contain scent, touch, and location data, among other things. Other formats include mmry_real, for things the Unit has actually experienced, mmry_phys for "muscle memory", and .mmry_cmnd for active or past orders the Unit has received.
The second is that Chips can cleanly be installed into a human brain without causing the Chip's data to corrupt, and without damaging the brain's important functions. Granted, it does cause the brain's memories to be partially overwritten if there's already data on the Chip, but if a Unit comes onto the line with no Chip and a human brain, The Factory isn't going to question it. Its purpose is to create and repair Units, and if something is on the conveyor belt, it must be a Unit, so the overwriting of corrupt memories is considered a feature, not a bug. Not that the repaired Units are able to complain, anyway!













