Technology · 2

What key advantage did Ken Thompson's 1973 rewrite of Unix in C give the operating system over its original assembly-based version?

Answer

Portability across different computer hardware

Because C code could be compiled for many machine architectures, the 1973 rewrite let Unix run on systems beyond the original PDP-7 and PDP-11, establishing the modern concept of portable software.

💡 Did you know?

Unix was originally written in assembly language, but Ken Thompson rewrote it in C in 1973 to make it portable—creating modern software portability.

Other options people guess

  • Faster processing speed
  • Reduced memory usage
  • Built-in network security

Topics

  • unix
  • c-language
  • software-history
  • 1970s

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