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In which language UNIX is written?

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+1 vote
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in Unix by (67.2k points)
In which language UNIX is written?

(a) JAVA

(b) Python

(c) C++

(d) C

I got this question by my school teacher while I was bunking the class.

Query is from Introduction to UNIX topic in section The Unix Architecture & General Purpose Utilities of Unix

1 Answer

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Correct answer is (d) C

For explanation I would say: UNIX was originally written in Assembly language but Dennis Ritchie and Ken Thompson wanted an operating system which could run on more than one type of hardware. So in 1973, they rewrote the whole operating system in C language due to which one of the strongest features i.e. portability was added to the operating system.

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