| 摘要 |
A peripheral controller controls transmission of spooler printing instructions and data files to printers via ports (11 and 13). To do this, it monitors a number of parameters in the received instructions and also in the print file. The controller operates in communication with local printer controllers in the maintenance of generic queues (20), and execution queues (21) for each printer. The peripheral controller also controls the transmission of data to back-up tape drives (9) by carrying out sequential passes to ensure that data integrity is maintained. <IMAGE> |
