Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Questions > Which of the following statements are false?a...
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Which of the following statements are false?
- a)A multi track turing machine is a special kind of multi tape turing machine
- b)4-heads move independently along 4-tracks in standard 4-tape turing machine
- c)In a n-track turing machine, n head reads and writes on all the tracks simultaneously.
- d)All of the mentioned
Correct answer is option 'C'. Can you explain this answer?
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Which of the following statements are false?a)A multi track turing mac...
In a n-track turing machine, one head reads and writes on all the tracks simultaneously.
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Which of the following statements are false?a)A multi track turing mac...
False Statement: In a n-track Turing machine, n head reads and writes on all the tracks simultaneously.
Explanation:
Turing machines are theoretical models of computation that consist of an infinite tape divided into cells where symbols can be read, written, or erased. The tape is divided into tracks, and a head can move along each track independently to read or write symbols.
a) A multi-track Turing machine is a special kind of multi-tape Turing machine.
A multi-track Turing machine is a theoretical model that has multiple tracks on the tape, where each track can be read or written independently by a separate head. This allows for parallel processing and can be seen as a generalization of the standard Turing machine with a single track. Therefore, statement (a) is true.
b) 4-heads move independently along 4-tracks in a standard 4-tape Turing machine.
A standard 4-tape Turing machine has four separate tapes, each with its own head. Each head can move independently along its respective tape, allowing for simultaneous computations on all four tapes. Therefore, statement (b) is true.
c) In an n-track Turing machine, n heads read and write on all the tracks simultaneously.
This statement is false. In an n-track Turing machine, there are n separate tracks on the tape, but each head can only read or write on a single track at a time. The heads can move independently along their respective tracks, but they cannot read or write on multiple tracks simultaneously. Therefore, statement (c) is false.
d) All of the mentioned.
Since statement (c) is false, the correct answer is option 'C' - only statement (c) is false.
Explanation:
Turing machines are theoretical models of computation that consist of an infinite tape divided into cells where symbols can be read, written, or erased. The tape is divided into tracks, and a head can move along each track independently to read or write symbols.
a) A multi-track Turing machine is a special kind of multi-tape Turing machine.
A multi-track Turing machine is a theoretical model that has multiple tracks on the tape, where each track can be read or written independently by a separate head. This allows for parallel processing and can be seen as a generalization of the standard Turing machine with a single track. Therefore, statement (a) is true.
b) 4-heads move independently along 4-tracks in a standard 4-tape Turing machine.
A standard 4-tape Turing machine has four separate tapes, each with its own head. Each head can move independently along its respective tape, allowing for simultaneous computations on all four tapes. Therefore, statement (b) is true.
c) In an n-track Turing machine, n heads read and write on all the tracks simultaneously.
This statement is false. In an n-track Turing machine, there are n separate tracks on the tape, but each head can only read or write on a single track at a time. The heads can move independently along their respective tracks, but they cannot read or write on multiple tracks simultaneously. Therefore, statement (c) is false.
d) All of the mentioned.
Since statement (c) is false, the correct answer is option 'C' - only statement (c) is false.
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