claim: Donna Noble travels with the Doctor.
evidence: Fiscal memory devices are electronic devices used for control of a country 's tax revenues .. tax revenues. tax revenues. Currently they are widely used in many countries around the world , including Russia , Bulgaria , Serbia , Romania , Republic of Macedonia , Albania , Poland , Moldova , Bosnia and Herzegovina , Kazakhstan , Armenia , Georgia , Kenya , Tanzania , Malawi and Ethiopia .. Fiscal memory devices have following categories  :. electronic cash registers , fiscal cash registers. cash registers. cash registers. fiscal cash registers. fiscal cash registers. printers , fiscal printers. fiscal printers. fiscal printers. E-Signs , Electronic signature devices. Electronic signature devices. Electronic signature devices. both of which contain fiscal memory .. and Electronic Journal -LRB- EJ -RRB- , Fiscal memory itself is a kind of memory that is certified by appropriate government body .. This Encrypted module is usually in the form of an IC on the Electronic circuit .. Electronic journal , is a kind of encrypted memory module which is readable using the fiscal device -LRB- ETR , FP -RRB- .. These memory modules are the normal SD and MicroSD cards but in an encrypted format which can not be read like normal formats on a personal computer .. Once this Electronic Journal is initialized in a fiscal device , it is assigned a fiscal serial number so as to assure it 's not reused in another fiscal device .