| 摘要 |
PURPOSE:To relieve the load of each computer and to simplify the program by performing data exchange and synchronism control in a dual computer system by an exclusive device. CONSTITUTION:Two sets of computers 1a, 1b are connected via a link device 2 and synchronism controllers 3a, 3b are provided respectively between the computers 1a, 1b and the link device 2 so as to constitute the dual computer system as a whole. The synchronism controller 3a or 3b consists of an input/output control section 31 connecting the titled device to plural channels of the own system computer, a transmission/reception control section 32 connecting the device to the link device 2, a synchronism decision section 33 supervising the synchronism state of data exchange of computers of the own system and the other system, a data buffer 34 storing temporarily the exchanged data at each channel, a clock section 35 counting the synchronism waiting time at each channel and a data extracting section 36 extracting a data from the data buffer 34 and giving it to a prescribed channel of the input/output control section 31. |
