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Which of the following is NOT an advantage of 'digital tape recording'?

Which of the following is NOT an advantage of 'digital tape recording'? Correct Answer A low quality of tape and tape transport mechanism is required

Digital Recorder: 

  • Digital magnetic tapes are often used as storage devices in digital data processing applications.
  • Digital tape units are of two types, incremental and synchronous.


Incremental digital recorders:

  • ​These are commanded to step ahead (increment) for each digital character to be recorded.
  • Input data may be at a relatively slow, or even discontinuous rate.
  • In this way, each character is equally and precisely spaced along with the tape.


Synchronous digital recorder:

  • These tape moves at a constant speed (about 75 cm/s) while a large number of data characters are recorded.
  • The data inputs are at precise rates, up to tens of thousands of characters per second.
  • The tape is rapidly brought up to speed, recording takes place, and the tape is brought to a fast stop.
  • In this way, a block of characters (a record) is written with each char­acter spaced equally along with the tape. 
     

Advantages of Digital Recording:

  • High accuracy.
  • Insensitivity to tape speed.
  • Use of simple conditioning equipment.
  • The information is fed directly to a digital computer for processing


Disadvantages of Digital Recording:

  • Poor tape economy.
  • The information from transducers is in analog form, hence an A/D converter is required.
  • A high-quality tape and tape transport mechanism are required.

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