fixed storage fi·xeds·to·rage uncommon noun 1. (computer science) memory whose contents can be accessed and read but cannot be changed Synonymsread-only memoryROMread-only storagefixed storage Related words Broader terms memory Narrower terms CD-ROMerasable programmable read-only memory WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.