In order to better evaluate the effectiveness of these computers, the following standards are now being used for the determination of machine performance records:

A. Engineering Servicing

All machine down time necessary for routine testing (good or bad), for machine servicing due to breakdowns, or for preventive service measures, e.g. (block tube changes ORDVAC, Monday morning routine ENLAC). Includes all test time (good or bad) following breakdown and subsequent repair of preventive servicing. Does not include unscheduled good testing time as discussed under F (5).

B. System Improvement

All machine down time needed for the installation and testing of new components, large or small, and machine down time necessary for modification of existing components. Includes all programmed tests following the above actions to prove machine is operating properly.

C. Code Checking

All time spent checking out a problem on the machine making sure that the problem is set up correctly, and that the code is correct.

D. Production

Good computing time, including occasional duplication of one case for a check or rerunning of the test run. Also, duplication requested by the sponsor, any reruns caused by misinformation or bad data supplied by sponsor. Error studies using different intervals, convergence criteria, etc.

E. Idle

Time in which machine is believed to be in good operating condition and attended by service engineers but not in use on problems. To verify that the machine is in good operating condition, machine tests of the leapfrog variety must be run at least once each hour.

F. No-Charge – Non-Machine

Unproductive time due to no fault of the computer such as the following: (1)^* good duplication, (2)* error in preparation of input data, (3) error in arranging the program deck, (4) error in operating instructions or misinterpretation of instructions, (5) unscheduled good testing time run during normal production period when machine malfunction is suspected but is demonstrated not to exist.

G. No Charge – Machine

Unproductive time due to a computer fault such as the following: (1) Non-duplication, (2) Transcribing error, (3) Teletype or IBM malfinction, (4) Machine malfunction resulting in an incomplete run.

H. Standby Unattended

Time in which the machine is in an unknown condition and not in use on problems. Includes time in which machine is known to be defective and work is not being done to restore it to operating condition. Includes breakdowns which render it unavailable due to outside conditions (power outages, etc.).

Grand Total

This figure is to include the total time of items A through H and shall always be 168 hours per week (regardless of holidays) except for time changes due to Daylight Saving Time.