1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
solmaris [256]
3 years ago
8

What are attribute grammars used for?

Computers and Technology
1 answer:
umka21 [38]3 years ago
4 0

Explanation:

Attribute Grammars were invented by Don Knuth as a way to unify all of the stages of compiling into one. An attribute grammar links syntax with semantics and have values that hold semantic information about the (non)terminal.  

<em>They can perform several functions in specifying the syntax and semantics of a programming language, they can specify the context-sensitive aspects of the syntax of a language and operational semantics of a programming language.</em>

I hope you find this information useful and interesting! Good luck!

You might be interested in
A good machine should have the mechanical advantage of......?​
zavuch27 [327]

Answer:

The ideal mechanical advantage (IMA) of an inclined plane is the length of the incline divided by the vertical rise, the so-called run-to-rise ratio. The mechanical advantage increases as the slope of the incline decreases, but then the load will have to be moved a greater distance.

Explanation:

4 0
3 years ago
Why I/O modules is needed between system bus<br>and I/O devices?​
beks73 [17]

Answer:

1. Processor communication -- this involves the following tasks:

<em>a. exchange of data between processor and I/O module</em>

<em>b. command decoding - I/O module accepts commands sent from the processor. E.g., the I/O module for a disk drive may accept the following commands from the processor: READ SECTOR, WRITE SECTOR, SEEK track, etc. </em>

<em>c. status reporting – The device must be able to report its status to the processor, e.g., disk drive busy, ready etc. Status reporting may also involve reporting various errors. </em>

<em>d. Address recognition – Each I/O device has a unique address and the I/O module must recognize this address. </em>

<em />

2. Device communication – The I/O module must be able to perform device communication such as status reporting.

3. Control & timing – The I/O module must be able to co-ordinate the flow of data between the internal resources (such as processor, memory) and external devices.

4. Data buffering – This is necessary as there is a speed mismatch between speed of data transfer between processor and memory and external devices. Data coming from the main memory are sent to an I/O module in a rapid burst. The data is buffered in the I/O module and then sent to the peripheral device at its rate.

5. Error detection – The I/O module must also be able to detect errors and report them to the processor. These errors may be mechanical errors (such as paper jam in a printer), or changes in the bit pattern of transmitted data. A common way of detecting such errors is by using parity bits.

5 0
2 years ago
Write a loop to output the word EXAM 99 times
worty [1.4K]

Answer:

Following are the answer for the given question

for(int i=1;i<=99;++i) // for loop

{

cout<<"EXAM"<<endl; // display the word EXAM

}

Explanation:

In this question we using for loop which is iterating 99 times and print the

word "EXAM  " 99 times.

The variable i is initialized by 1 and check the condition if the condition in loop  is true it will execute the loop and print "EXAM" .The loop will executed 99 times when the condition in loop is false then loop become terminated.

Following are the program in c++

#include<iostream>// header file

using namespace std;

int main() // main method

{

for(int i=1;i<=99;++i) // for loop

{

cout<<"EXAM"<<endl; // display the word EXAM

}

   return 0;

}

3 0
2 years ago
Which component of service-oriented DSS can be defined as data that describes the meaning and structure of business data, as wel
Licemer1 [7]

Answer:

The correct answer to the following question will be Metadata Management.

Explanation:

The management of data about the other data is known as Metadata Management. When the data is generated, updated, deleted, created, metadata is generated.

Benefits of Metadata management:

  • To locate data for a person, the metadata management make it easier.
  • Project delivery become faster.
  • Maintain information of organization.

Hence, the Metadata Management will be the best suitable component which defined as the structure and meaning of business data.

4 0
3 years ago
Where are methods listed in a UML class diagram showing three parts?
denis23 [38]

Answer:

the bottom third

Explanation:

Check out the exampe below.

swim() would be an example of a method.

3 0
2 years ago
Other questions:
  • What will be displayed after the following statements have been executed? int x = 15, y = 26, z = 32; x = x + 12; y = y/6; z -=
    15·1 answer
  • What effects will the different types of lighting produce on mountains?
    15·1 answer
  • Which of the following are examples of algorithms? (Select all that apply, if any do.)
    15·2 answers
  • How has science fiction influenced technology
    7·2 answers
  • How to search for the largest files on my computer vista?
    5·1 answer
  • According to the video, what kinds of projects would Computer Programmers be most likely to work on? Check all that apply.
    13·2 answers
  • Convert the given for loop to while loop and find the output of the program assuming the
    14·1 answer
  • Hi, I am from India. Our brainly platform isn't so good, many of 'em keep spamming questions that I ask. US platform seems much
    9·1 answer
  • In how many ways can a list of students names from your class be organized?​
    14·1 answer
  • Sistem komponen mekanikal yang terdapat pada sebuah basikal?​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!