| 摘要 |
The machine comprises a 16-key keyboard (1), an alpha-numeric display (2), a calendar clock (3), a microprocessor (4), a program memory (5), a text memory (6), and a working memory (7), interconnected by a bus (B). A first set of messages enables normal franking operations to be performed, and a second set of messages which are accessible by means of a menu key (M) on the keyboard enable special operations to be performed. The messages are stored in the text memory, with each message being constituted by screens each of which has the same capacity as the display. Each screen is transferred from the text memory to the working memory prior to being displayed. Each message is controlled by the microprocessor which runs a program relating to each message. All of the programs are stored in the program memory.
|
