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Questions and Answers
What was the primary form of data processing in the early days?
What was the primary form of data processing in the early days?
- Magnetic disks
- Magnetic tapes
- Computer applications
- Master files (correct)
What was the approximate time required to read an entire tape?
What was the approximate time required to read an entire tape?
- 5 minutes
- 10 minutes
- 20-30 minutes (correct)
- 45 minutes
What has been achieved after a long and complex evolution in DSS processing?
What has been achieved after a long and complex evolution in DSS processing?
- 100% accuracy in scanning records
- 5% accuracy in scanning records (correct)
- Single pass of magnetic tape
- Processing of exclusive applications
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Study Notes
- The early days of data processing were dominated by master files, which were stored on magnetic tapes.
- Reading an entire tape could take anywhere from 20-30 minutes, depending on the data and the processing required.
- In the early 1960s, the world of computation consisted of exclusive applications that were executed on master files.
- Experience showed that for a single pass of a magnetic tape that scanned 100% of the records, only 5% of the records, sometimes even less were actually required.
- DSS processing as we know it today has reached this point after a long and complex evolution.
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