| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an inexpensive stock price data receiving terminal with high reliability, by which a problem point that a conventional SRAM is expensive and has a short life owing to a magnetic disk without reliability is solved and a processing speed is not reduced through the use of a flash memory in a historical data storing area. SOLUTION: In the stock price data receiving terminal, the flash memory 1 is used as a non-volatile memory for storing historical data, a historical data storing area 10 for storing historical data corresponding to a date and a date order management table 11 for storing date order management information are arranged. When data in the flash memory 1 is updated in accordance with a received historical electronic message, updating is executed by a receiving data processing means 30 by using a date order management table updating area 20, an updating buffer 21 and a flash memory writing buffer 22 in DRAM 2. A historical data writing means 31 writes it in the flash memory 1.</p> |
