Omdat hard disks files in minimum blocks van 32K opslaan (iha),
en Atom ROMs klein zijn (4K or 8K) is het efficiënt deze ROMs in één file te bewaren.
Een overzicht atom_roms.zip
Atom_Basic.rom Atom Basic on #Cxxx Atom_Kernel.rom c604db3d the Atom_OS on #Fxxx Atom_DOS.rom c431a9b7 dosrom.rom Atom_Econet.rom Atom Econet ROM Atom_FloatingPoint.rom Atom Floating Point ROM Atom_FloatingPoint2.rom maybe same as above Atom_axr1.rom (josbox) Atom_pcharme.rom Atom_Combox.rom Atom_Demo.rom Atom Demo ROM Atom_gags.rom Atom_Mousebox.rom Atom_salfaa.rom Atom_Toolkit.rom Atom_unknown.rom Atom_werom.rom Atom_Windows.rom BBC_MOS_1_2.rom BBC_BASIC_4.rom Atom_BBC_BASIC_OS.rom Operating System ROM for ATOM BBC BASIC upgrade (Also requires standard BBC BASIC ROM)