What are the advantages and disadvantages of high level language?

Answer 1

Advantages

- more human-understandable, logical and easy-to-learn syntax that enables programmer to code more effectively

- portability - some of them can be hardware and OS indipendent, for example Java

Disadvantages

- they are usually slower than lower-lever languages, for example assembler is faster than C which is faster than C++ which is faster than c# or Java (on the same computer, of course)

Answer 2

When you use a high level language you are essentially using methods and components of lower level languages without ever knowing it. The advantage is that you can write code in C or Java without knowing how the registry files write and read. This is called levels of abstractions, because you don't need to know how the underlying hardware or software works for you to be able to use the language. The disadvantage of it is that if you are going for performance and/or are on a tight space requirement lower level languages like assembly are better for that. They will use less clock cycles to get the same job done

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Answer 3

Well... the main advantage is in high level languages you can actually write less (a LOT less) and also in arbitrary english for as long as you respect the language syntax, instead of having to code your software in low level assemby:

For example, this is C

1. int CallingFunction(int x) {
2. int y;
3. y=5;
4. return (y+x);
5. }

And this is the equivalent Assembly

1. LINK A6, #-4
2. MOVE.L #2, -(A7)
3. MOVE.L #1, -(A7)
4. ADDQ.L #8, A7
5. MOVEQ.L #5, D0
6. UNLK A6
7. RTS
8. LINK A6, #-8
9. local1 = param2
10. MOVE.L 12(A6), -4(A6)
11. RTS

See any remarkable differences? :)

Answer 4

One advantage of using a high level language is that it is very specific. One disadvantage of using a high level languages is that it is usually hard to understand.

Answer 5

Portability. Assembly (and machine code) is not portable.