<INS-S DATE="20020416" ID="INS-S-00003"/>21. A credit card sized communications device comprising:</claim-text> <i>a credit card sized housing insertable into a computer and couplable to a telephone network, said credit card sized housing including: i>b) a plurality of control lines being coupled to the processor; c) a data bus coupled to the processor; d) an address bus coupled to the processor; e) a memory coupled to the processor via the data bus and the address bus, wherein the processor retrieves data over the data bus from the memory by specifying an address over the address bus, and stores data in the memory by transmitting the data over the data bus to the memory and by specifying the address over the address bus; f) an input/output port couplable to the computer and to the telephone network, said input/output port being coupled to the processor via the data bus and a plurality of control lines, transmitting data to and from the processor via the data bus, and receiving data from and transmitting data to the computer and telephone network, said input/output port controlled by the processor via the plurality of control lines, wherein said processor outputs a plurality of access signals to the input/output port upon detecting an available access signal from the telephone network and then waits until receiving an additional signal from the telephone network via the input/output port before sending additional data signals to the telephone network via the input/output port. view more

<INS-S DATE="20020416" ID="INS-S-00005"/>23. The device according to claim 21, wherein the processor receives access data from the computer and at least temporarily stores the access data in the memory.<INS-E ID="INS-S-00005"/>

<INS-S DATE="20020416" ID="INS-S-00006"/>24. The device according to claim 21, wherein the processor is programmable from an external source with access data.<INS-E ID="INS-S-00006"/>

<INS-S DATE="20020416" ID="INS-S-00007"/>25. The device according to claim 21, wherein the additional data signals include account information and the additional signal includes a request signal.<INS-E ID="INS-S-00007"/>