PX1000 PRODUCT DESCRIPTION TEXT TELL1s PX1000, the Pocket Telex is a pocketable data comnunications unit, for creating and sending/receiving text. Text can be created using the standard QWERTY keyboard, and stored in the unit’s memory. The memory will hold up to 7,400 characters, or 4 to 5 pages of standard A4. The text is viewed on a single line of 40 characters Liquid Crystal Display. Inbuilt in the unit is an easy to use, yet sohisticated word proccessor. Text can be sent and received by telephone using the unit s on board simplex acoustic modem. Also, text can be transferred to a printer or computer, via an RS232C compatible serial port. Via this port also, text can be received from a computer, or other data communications device. The unit is powered from an internal rechargeable battery pack, which is charged from an external adaptor. The unit will operate for more than five hours after a full recharge. The memory contents are kept as long as the battery pack is charged. There are visual indications on the LCD of the quality of telephone reception, the amount of memory used, when the battery pack is low, as we 11 as other text information. There is also an audio input/output audio socket which can be used for storage and retrieval of data from a standard tape recorder. There are different versions of the PX1000 available. The basic unit is the Encrypt version which contains the extra function enabling text to be encrypted according to a key, which is selected by the user. The original text, once encrypted, is practically impossible to retrieve without knowledge of the exact key. The Calc version has, instead of the encrypt function, the possibility to do basic arithmetic calculations.