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Nothing. Every modern OS is written in C, except for some little special parts (like interrupt-handling) that are written in Assembly.

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Q: Disadvantage of writing OS in high level language such as C?
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What are the advantages and disadvantages of writing programs in high level languages?

The main advantage is of course convenience - it is much easier to write\read code in a high-level language. The main disadvantage is the performance - in general, if you write the same program in a high-level language and in a low-level language, the first will usually take more time. It can make a difference if your program is very heavy, or if performance is very important (e.g. you're writing an operating system), but for most normal programs I would recommend using a high-level program, and python is a great example of one!


What is Disadvantage of high level language?

The only real disadvantage of high level languages is that they must be converted to machine code in order to execute. However, machine code is extremely difficult to work with; we use high level languages because it makes it easier to both write and maintain programs.


Embedded with high level language?

high level language for embedded


Is BASIC a high level language?

Yes, it is a High-Level Language


Is scheme is an high level language?

Scheme is a functional programming language and a high level language.


Why would you express a program as a text file in a programming language instead of writing processor instructions?

It's easier to write low-level code using a high-level language.


What is the disadvantage of change high level language to machine language?

The biggest disadvantage of machine level language is that it is extremely hard for humans to work with. Everything is in binary code, which is nothing more than a series of ones and zeroes. Programming anything in machine level language takes a very long time.


Difference between high level language and low level language in tabular form?

high level language are easier to learn


High level to Machine level language is converted using?

high level language is converted to machine level language using a compiler or an interpreter


What are the simalarities of high and low level programming?

high level language; is a computer language that is near to human language. high level programming is a process of programming high level language.Example,c++,java,cobol are one of them. The reverse is true for the low level language.


Is C plus plus a high level language?

Yes, C++ is a high-level language.


Is the high-level language is also an object oriented program?

Not necessarily. Any language with an object-oriented approach will be a high-level language, but a high-level language does not have to use an object-oriented approach.