What is the difference between high level code and machine code




















There is very little difference, functionally, between assembly language and machine level language. Each assembly language statement corresponds to one machine instruction. The difference is in readability who wants to read and write in hex code? Basically they do the same: converting from one level of language into another. A compiler converts high level language programming language like java into machine-language.

That is language a computer understands. An interpreter converts high level language into an intermediate level. When a program is exectuted, that intermediate level is reconverted to machine language. Machine code is machine-level language. Assembly language and machine language are very similar, but assembly language is a more readable version of machine language.

Assembly language uses mnemonic codes as opposed to numeric codes. It is meaningless. The term 'high-level language' implies a high-level of abstraction between the source code and the resultant machine code. In order for there to be a one-to-one relationship between the source code and the machine code, there must be little to no abstraction; the source language must be low-level.

Assembly language is a low-level language with little to no abstraction. A programming language that is machine-dependent is called a "low-level" language. For PCs, this usually includes assembly, binary code or some proprietary languages on embedded devices. No, machine code is the lowest level programming language. A low level language is closer to the architecture of the computer and may be usable only on the one machine for which it was designed.

A high level language has a complex interface that permits it to be used on all, or a large variety, of computers. Its commands are translated in the background into machine specific commands.

The processor does not differentiate between an assembly language program, a machine language program, or even a high level program. As far as the processor is concerned, it only knows machine language.

All assemblers, compilers, and linkers ultimately generate machine language. A computer does not execute a program in a high level language.

A computer executes a program in machine language. The high level language is converted into machine language by a compiler. Alternatively, an interpreter executes on the computer in machine language and the interpreter executes the high level language. Machine code is the bits and bytes that the processor executes while running its program.

Assembly code is a low level symbolic representation of that machine code, making it easier to write. For example, Machine Language is succeeded by Assembly Language, which is succeeded by high-level languages.

In other words, High-level programming languages are build on Assembly Language, which is built on Machine Language. The idea is that higher level languages calls functions of a lower level languages with a single-simple short code.

Machine language is the most primitive or basic programming language that starts or takes instructions in the form of raw binary code. So that if you wanted to give a computer an instruction in its native or Machine language, you have to manually enter the instructions as binary code. For these reasons, Assembly language was developed as an alternative to Machine language.

Assembly Language uses short descriptive words mnemonic to represent each of the Machine Language instructions. For example the mnemonic add means to add numbers together, and sub means to subtract the numbers.

So if you want to add the numbers 2 and 3 in assembly language, it would look like this:. For your third point, phrase it in a programming context, e. Machine code is the main language used by a computer. It is in binary form and the instructions are represented by 1s and 0s. Because computer languages such as machine code are hard for humans to understand and so other languages were invented so that data input can be made easy. Assembly language is referred as a low-level language because it is similar to machine code which is harder to understand for humans but easier for computers.

Mnemonics are merely abbreviations used to make sense of assembly language and are usually used to make programming easy. An assembler is a program which converts low-level languages into machine code so it is easier for computers to understand. High-level programming languages are more English-like and are used to make input easier as they are easily understandable by humans.

Assembly language is faster, easier to remember as it uses symbols and it has easy auto correction compared to high-level languages. High-level languages are less machine dependent, more English-like and are easier to understand compared to assembly languages. Compilers interpret high-level code into machine code. The advantage of using a compiler is that it is executed much faster but on the other hand, you cannot change the program without going back to the original code.

Interpreters read the source code line by line and executes the program without compiling them into machine code. The main advantage is that it is simple and you can change the program whilst its running but on the other hand, the line has to be translated before it can run so this causes it to be slow.

Good but not just data input is made easier — coding, debugging, reading, etc. Yes true, just add that the mnemonics represent the binary op codes in machine language, e. Not really. Try these advantages: — Assembly language requires less memory than high level languages. Machine code is a programming language which consists of 1 and 0s which the computer understands straight way without doing anything. If you use any other programming language for example python it would be translated to machine code for the computer to understand.

So for humans its hard to understand what a bunch of 1 and 0s are so you can make a mnemonic to remember a function in assembly language a common one used is DIV which stands for divide. An assembler is used for translating mnemonics for assembly language in top binary which is machine code. High-level languages are high level because they are easier for the computer to understand because there are more close to human language which are words.

Java, Python, Ruby 8. Three advantage of assembly language is that it occupies less memory, Its faster to translate into machine code due to the similarity and it allows hardware specific complex jobs to work in an easier way.

You do not need to remember the registers of the CPU finally they are generally transferable across multiple architectures. A compiler reads the whole code of the high-level code and then translates it into machine code while an interpreter read the code one line at a time then executes it. A compiler is preferred because its less time consuming. A disadvantage of a compiler is that you have to go back to the original source editing then compile it again.

While with the interpreter you can interpret it while the code is running, change the program or either start again. Yes — and the mnemonics stand for binary op codes. We COULD use ternary computers or even higher number bases… but with our current technology binary is by far the easiest.

Now this is much more easier to understand than it is to understand da raw machine code. For instance the MOV command moves data from one location to another. A mnemonic is a tool to help remember facts or a large amount of information.

It can be a song, rhyme, acronym, image, or a phrase to help remember a list of facts in a certain order. In Computing a mnemonic is an abbreviation for an operation. Assembler, a program that translates programs from assembly language to machine language. Such languages are considered high-level because they are closer to human languages such as the Russian Cyrillic and further from machine languages such as The main difference between an interpreter and a compiler is that compilation requires analysis and the generation of machine code only once, whereas an interpreter may need to analyse and interpret the same program statements each time it meets them e.

Machine code is the only language that a computer understands. Because writing in binary is difficult for humans. It provides control of the CPU but for other programs is difficult to read. Mnemonics are designed to provide users to quickly access a function or program. In assembly language this are used to represent binary by using English words.

For example you would write as ADD. An assembler is used to translate from assembly language to machine language. High level languages are programs that are closer to human language.

Examples of high level language will be: Python, Scratch and Java. Assembly language requires less memory therefore it allows hardware jobs in an easier way. Also, execution time is fast. Compiler takes the entire program as input therefore the the errors are displayed after the entire program is checked.

One of the biggest advantages is that it executes the commands fast. One disadvantage will be that if you want to edit the code it will take more time than the interpreter. Interpreter language takes only single instructions as input therefore errors are displayed for each instruction individual.

One of the advantages is that it is easy to learn and use and it allows complex programs to be executed in a few steps. One disadvantage will be that it has limited access to low level languages and detailed operations.

This homework is good in places, but some parts of it feel a bit rushed and lacking in your usual quality. Machine Code is the only language a computer will understand. It consists of data represented in binary form, in 1s and 0s. Writing in 1s and 0s will be very hard to humans and will also be a lot more time consuming than just writing in English form. Assembly Language is referred as a low level language as it is a language that computers can understand easier and faster than humans.

It gives instructions directly to the CPU rather than going through an assembler. Mnemonics are phrases that help us remember certain lists more effectively, they usually contain abbreviations and rhymes to help the person remember.

In assembly language Mnemonics serve as an abbreviation for an operation. An assembler is used to convert high level languages to machine code so the CPU can execute the instructions based of it. High level languages are languages that are the close to English and can be understood better by us humans, however these need to be sent through an assembler to convert to machine code for the CPU to understand it.

It is easier for the computer to understand and can be used to sent commands directly to the CPU so it takes lesser time to execute than high level languages. It also requires less memory than a high level language. It is easier for humans to understand and so the code can be written and corrected faster than assembly language. Compilers and interpreters are programs that convert high level languages to machine code.

Compilers go through an entire code and tell the user all the bugs and problems one advantage of this is that you can now complete your debugging faster but a disadvantage is that you have to keep checking the entire document several times until you get it correct.

Interpreters on the other hand go through a high level code line by line and tells the coder the errors in that line. An advantage of this is that you will complete the code with a better accuracy however this will be a lot more time consuming. Computer programming language consisting of binary instructions which a computer can respond to directly. They can be rhymes or phrases. In assembly language the mnemonics are English-like words used to represent the binary opcodes of machine language.

It requires less memory. It allows hardware-specific complex jobs in an easier way. It is suitable for time-critical jobs. Faster program developmen. It is not necessary to remember the registers of the CPU instructions.

A compiler searches all the errors of a program and lists them. If the program is error free then it converts the code of program into machine code and then the program can be executed by separate commands.

An interpreter checks the errors of a program statement by statement. Advantage and Disadvantage of Compiler A — the translation is done once only and as a separate process. D- you cannot change the program without going back to the original source code, editing that and recompiling. It is more the code that compilers and assemblers convert programs into so the CPU can run them. Good in places, rushed in other places. Take your time, homework is really important, and please stop chatting in class, you cannot afford to waste time this way.

Machine code is the only language a computer understands, which contains binary code that represents instructions and opcodes. Other languages are developed because machine language is very hard to write or debug for human users.

It also saves time and avoid errors. Assembly language is referred to low level language because it is similar to binary code that a computer understands. An assembler is used to translate assembly code into machine code for the computer to understand.

High level languages are higher than low level assembly languages. Python is a high level language because it is more similar to human language than assembly language. Three advantages of assembly language over a high level language is that it is quicker.

And are also more suitable for certain jobs in the hardware. Three advantages of high level languages is that it is easier to write and debug. It is portable between devices. Also allows us to visualise the program.

Machine code is the elemental language of computers. Computers become more and more complex, therefore the making of programs also becomes a lot harder. Therefore, other computer languages, like Python, are used, which are then translated into machine code for the computer to understand. Mnemonics are characters that represent the opcodes of machine code. The assembler is a program that translates the assembly language to machine code.

High-level languages have built-in commands. High level language is compiled. Python, Scratch, Java 8. A compiler converts the high-level language to simple machine code, checking for errors, so they can be corrected before the program is being run.

The interpreter on the other hand translates each single line into machine code. This again could take some time and also, after the error is corrected, each line has to be read once again when the program is started. Assembly language is NOT easier to correct than higher level languages, as it is further away than English. We prefer higher level languages. It is also NOT easier to work with than higher level languages. People prefer Python than the assembly language on the LMC..

It is the only language a computer understands. Machine code is difficult for humans to read, let alone write in. The development of other, high-level programming languages which are closer to spoken language than machine code has uncomplicated the process of coding and debugging.

Mnemonics are learning techniques that help you retain information. In assembly language, a mnemonic is an acronym or abbreviation for an operation. It is also suitable for hardware-specific jobs. High-level languages are closer to English, therefore easier to learn and correct than assembly language.

Programs written in high-level languages can be executed from different platforms. A compiler searches an entire program for errors and, if none are found, converts it into machine code. This process is relatively quick, but to correct it, you must return to the original code and search for the error. An interpreter checks the program for errors line-by-line. This method of error-reporting is more efficient, as it pinpoints the exact mistake by halting before execution rather than running a full diagnostic.

That being said, conditional control statements are executed slower by interpreting than by compilation. It was uploaded four days ago. I usually aim to get it done by day 4 or 5 anyway…. For instance binary code which is shown as 1 or 0. But a computer understands it very easily. This is an instruction which carries out addition. The interpreter is a program that will execute a program to check if the code has any errors. Excellent job on the homework. Adding on to that it is portable which means you can move a program from one machine to another.

On the other hand, interpreters also have pros and cons and 1 example of an advantage is that it is easy to learn and use. Machine code is the only language a computer can understand and therefore the only means of programming directly with the computer. Machine code is more or less in a binary format. Machine code is very difficult to use for the programmer when coding a complex program.

Other languages were developed in order to make the programmer have an easier experience when trying to code something more complex. This is easier as it has a language similar to English in comparison to machine code which is like binary. For a programmer, doing operations in machine code is extremely difficult writing and reading 3. It is easier to use however the difference is not significant enough.

In assembly language, they are used to represent opcodes that are used in the machine code. Mnemonics are used to make programming easier. An assembler is a program that translates assembly language into machine code. This is needed for the computer to understand instructions as it can only understand machine code. High level languages have commands that are already stored in the language that make programming easier for the programmer.

They are more like English than machine code which also makes it easier to use. Python, C , Java. Smaller amount of memory is used, faster execution times, you can write a program with less useless code and essentially do it in less time. Assembly is also useful in specific tasks where the code is embedded and the role does not change. Program development is faster in a high level language, they are easily portable as they have very few machine specific details, it is easier to check for errors and see syntax mistakes An interpreter is a translator that reads a program line by line before converting into binary machine code and executing it.

If one line has an error the program will show this error to the user which makes it easier to manage mistakes made in the program as it is easy to see them. However every time the program is run each line of code has to be translated every time which is a disadvantage.

A compiler reads the entire program and checks it all for mistakes before running it. Unlike an interpreter, if an error is made the programmer has to rummage through the entire code for it which can consume a lot of time. Moreover, It shows all the errors in the program so you will only have to compile twice, one to check errors and then fix them and the second time after correcting the errors while an interpreter which show a mistake in chronological order one at a time so can waste a lot of time.

Perhaps set yourself a target of 1 extra hardware homework per week, and then get all the hardware ones done by the end of half-term..? Machine code is code understood by the CPU and the computer, machine code is in binary meaning it consists of only zeros and ones.

It takes forever for a programmer to translate common English into binary, this proves programming an even more demanding task to both read and write. Furthermore it is very hard to read, understand and debug when an entire program is in zeros and ones. The instructions are similar to those in machine language, there is usually a correlation between assembly and machine code instructions.

High level languages are programming languages closer to English, which take longer to translate into machine language. A compiler runs through the whole high level code and translates it into a complete machine code program. Advantage: Translation is done once only and as a separate process, much faster to execute. Disadvantage: Cannot change the program without going back to the source code, editing that and recompiling.

An interpreter reads the source code one instruction or line at a time, converts this line into machine code and executes it. Advantage: Simple and you can interrupt it while it is running, change the program and either continue or start again.

Disadvantage: Every line has to be translated every time it is executed, even if it is executed many times as the program runs therefore slowing it down. We could program directly with the computer using binary code. Every instruction that the CPU can understand will be represented by unique code called the opcode.

The difficulty is we need to learn the code, and we also need to enter the correct binary codes for the data values to. So, we need to have a translator to convert the high level language into something that the computer can make sense of.



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