13Chapter 2. Getting Started the BHT and System Mode■ Host ComputerModels: PC/AT, PS/2Optional application programs and OSesBHT-BASIC3.5MS-DOS Win3.1 Win95 Win98 WinNT3.5/4.0 Win2000ProfessionalBHT-BASIC Compiler BHT-BASIC3.0(MS-DOS–based)BHT-BASIC3.0(Windows3.1-based)OSApplicationsIr-Transfer Utility CIr-Transfer Utility ETransfer UtilityMS-DOS–basedMS-DOS–basedWindows3.1–basedWin95-/NT-basedWin95-/NT-based*Win95-/NT-based*Win95-/NT-based*This application does not activate any built-in port.——— Win95-/NT-basedWin95-/NT-based■ CU-7000 and RS-232C Interface Cable (option)The CU-7000 is an IrDA-compliant communications unit which is required when yourhost computer is not equipped with an IrDA interface port. The CU-7000 exchangesdata and programs with the BHT optically, and with the host computer via the RS-232Cinterface cable.You may directly connect two BHTs with each other by using a commercially availablemetal cable having 3-pole mini stereo plugs (as a direct-connect interface cable). Youalso connect the BHT directly with the host computer or with the modem by using thedirect-connect interface cable compatible with the target equipment. (NOTE: Thedirect-connect interface port of the BHT is not designed to stand frequent connecting/disconnecting. You are, therefore, recommended to use the CU-7000 where youexpect to do a lot of connecting and disconnecting of the BHT to/from a host compu-ter.)■ BHT-BASIC Compiler (option)This Compiler compiles a source program written in BHT-BASIC by an editor of thehost computer running the MS-DOS, into the object program (user program) whichcan be used in the BHT. The compiled and linked program file is named "XXX.PD3."(XXX: File name you can set arbitrarily under the MS-DOS rules) You should downloadit to the BHT by using Ir-Transfer Utility C/Ir-Transfer Utility E/Transfer Utility.