10-35.
10-36.
10-37.
10-38.
10-39.
A flux pattern magnetized in one direction to
indicate a binary ONE and the opposite
direction to indicate a binary ZERO is a
characteristic of which of the following
recording techniques?
1. Return-to-zero
2. Non-return-to-zero
3. Phase encoding
Using narrow current spikes to write small
flux patterns is a characteristic of which of
the following recording techniques?
1. Return-to-zero
2. Non-return-to-zero
3. Phase encoding
A binary ONE indicated by a change in flux
direction is a characteristic of which of the
following recording techniques?
1. Return-to-zero
2. Non-return-to-zero
3. Phase encoding
What recording technique, if any, provides
for the highest data density?
1.
2.
3.
4.
Return-to-zero
Non-return-to-zero
Phase encoding
None; they all provide the same density
An invisible line on a tape where data is
written or read a bit at a time is called a
1. file
2. frame
3. record
4. track
10-40.
10-41.
10-42.
10-43.
10-44.
84
Data bits written concurrently across the
width of the tape are called a
1. file
2. frame
3. record
4. track
Which of the following terms indicates the
density of data stored on multitrack tape?
1. Bits per inch
2. “Characters per inch
3. Frames per inch
4. Records per inch
A nine-track magnetic tape contains (a) what
number of data bits and (b) what number of
parity bits?
1. (a) 7 (b) 2
2. (a) 8 (b) 1
3. (a) 9 (b) 1
4. (a) 9 (b) 0
In which of the following recording
techniques is the presence of a frame
indicated by the detection of a binary ONE?
1.
2.
3.
4.
Return-to-zero
Phase encoding
Non-return-to-zero
Non-return-to-zero indiscrete
When writing or searching for data, which of
the following tape markings is a common
starting point used by a system?
1. BOT
2. EOT
3. Both 1 and 2 above
4. IRG
