Recent content by chrisalviola

can all the parts be bought in hardwares? and if anyone has done this can you please give me all the parts needed, also the software you need to install using windows or linux

I want to use it like a calculator, when you press 0 to 9 button 4 bits will be stored in 4x nand flipflops

I want to close a tread or topic i created

Is it possible to use flip-flips to store numbers inputted, for example if i input 5, current will go to 4x nand flip flip and store 0101 and the next digit to be calculated, any ideas on this?

my question was to separate 2 binary digits out of the 4 or 5 bit binary. to display it using 2x 7 segment

example 1111 = 15 is there a circuit to separate output binaries 0001(1) and 0101(5) in input 1111(15)?

heres a sample

I can perform counting 0-99 but how do you stop it in 59 then 00 then back to 01? heres a sample

The goal of my query is to show only questions that are not yet answered and it should be in random order. if you could suggest the best query that would reduce traffic i would be great full. heres my table structure $query = "CREATE TABLE users (user_id INT (4) NOT NULL...

This is my SQL in PHP SELECT * FROM ExamQuestions where exam_id not in(Select ans_exam_id from StudAns where ans_user_id=".$_COOKIE['cuserid']." and ans_exam_id in(SELECT exam_id FROM ExamQuestions)) ORDER BY RAND() when multiple users send this query to server it slows down. is there any...

been learning ML programming, just fun to learn new things, what this ML programming used for anyways? how is this better that C or C++?

would the heat generated by covering my car under the sun would still fade its paint? since maybe its more hotter inside the plastic cover since there's no air circulation would this still make my car paint fade more?

wow it works tnks a lot:smile:

I have here the SQL Query SELECT subjects.*, count(distinct enrolled.studid) as nostud FROM subjects, enrolled where subjects.idsubjects = enrolled.subjid group by subjects.idsubjects but the problem is if there's no students enrolled on that subject it won't appear on the relation, any...

Iam currently coding a database system for a school here, currently this is my database in MYSQL I want to know what SQL code to use to count how many students has enrolled in every subjects in the subjects table the new relation would appear as...