Technical Customer Service for the EDP System Robotron 21 and the Equipment Technology of the ESER.

摘要

Far more extensively than the R 300, the Robotron 21 system of the ESER offers the possibility of carrying out maintenance tasks and tests without burdening the central processor. This potential, however, places strong emphasis on precise coordination between this work and the running of user programs. Appropriate program-dependent coordination of the maintenance and test activities can achieve an average down time for the entire installation of not more than 3 to 5 percent of the productive running time, depending of course on the particular configuration. That is, the greater portion of this kind of work can be accomplished without interfering with the normal computing tasks. This advantage results primarily from the use of maintenance-free components and preventive maintenance in the form of periodic tests during installation. With the aid of test programs in the disk-based operating system, the operation of the following peripherals can be tested selectively by the operator or the technician: Console Unit; Punched Paper Tape Unit; Punched Card Reader; Card Punch; Magnetic Tape Deck; Changeable Disk Unit; Line Printer.