... 32MB SDRAM. Can be extended to 64MB,128MB FLASH/SDRAM, support at least 500 transaction records.OSLinuxPower SupplyExternal switch powerInput: 100V ... print paper,ASCII and Chinese character can be printed, support print graphics, the highest speed is 6.25cm/s, ... ,CDMA or GPRS(one of them), NETProgram LanguageStandard C, support Second DevelopmentLanguageSupport English and China 2 level word ,when is ...