Hiring guide for Turbo C Engineers

Turbo C Developer Hiring Guide

Turbo C is a discontinued integrated development environment (IDE) and compiler for the C programming language from Borland. It was first introduced in 1987 as a successor to Turbo Pascal. The IDE includes a full-featured editor, resource management tools, and debugging capabilities allowing developers to write, compile, debug and run applications all within the same interface. Turbo C is known for its high processing speed in compilation and linking. Additionally, it provides support for both inline assembly and separate-assembler-linker processes. Despite being outdated compared to modern IDEs such as Eclipse or Visual Studio Code with more user-friendly interfaces and advanced features like auto-completion or refactoring tools; it still remains popular among educational institutions due to its simplicity which makes it ideal for beginners learning programming concepts.

Ask the right questions secure the right Turbo C talent among an increasingly shrinking pool of talent.

First 20 minutes

General Turbo C app knowledge and experience

The first 20 minutes of the interview should seek to understand the candidate's general background in Turbo C application development, including their experience with various programming languages, databases, and their approach to designing scalable and maintainable systems.

How would you define the main function in Turbo C?
The main function in Turbo C is defined as 'int main()'. It is the entry point of the program and the execution starts from this function.
What are the basic data types in Turbo C?
The basic data types in Turbo C are int, char, float, and double. 'int' is used for integers, 'char' is used for characters, 'float' is used for floating point numbers, and 'double' is used for double precision floating point numbers.
Describe the difference between '==' and '=' in Turbo C.
'==' is a comparison operator used to compare two values, while '=' is an assignment operator used to assign a value to a variable.
How would you use a pointer in Turbo C?
A pointer in Turbo C is used by declaring a pointer variable, assigning the address of a variable to it, and then accessing the value at the address using the dereference operator '*'. For example: int *p, var; p = &var; *p = 20; This will assign the value 20 to var.
What are the different types of loops in Turbo C?
The different types of loops in Turbo C are 'for' loop, 'while' loop, and 'do-while' loop. 'for' loop is used when the number of iterations is known, 'while' loop is used when the number of iterations is not known but the condition is known, and 'do-while' loop is used when the loop must execute at least once.
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What you’re looking for early on

Has the candidate demonstrated a solid understanding of Turbo C?
Can the candidate solve complex problems?
Is the candidate familiar with the latest trends and updates in Turbo C?
Does the candidate have a good understanding of data structures and algorithms?

Next 20 minutes

Specific Turbo C development questions

The next 20 minutes of the interview should focus on the candidate's expertise with specific backend frameworks, their understanding of RESTful APIs, and their experience in handling data storage and retrieval efficiently.

Describe the difference between a local variable and a global variable in Turbo C.
A local variable is declared inside a function and can only be used within that function. A global variable is declared outside all functions and can be used by any function in the program.
How would you handle errors in Turbo C?
Errors in Turbo C can be handled using error handling functions like perror() and strerror(). These functions display an error message corresponding to the error number passed to them.
What are the different types of operators in Turbo C?
The different types of operators in Turbo C are arithmetic operators, relational operators, logical operators, bitwise operators, assignment operators, and special operators.
Describe the difference between a structure and a union in Turbo C.
A structure is a user-defined data type that allows to combine data items of different kinds. A union is also a user-defined data type but it allows to store different data types in the same memory location. The size of a structure is the sum of the size of all members, while the size of a union is the size of the largest member.
How would you use a function in Turbo C?
A function in Turbo C is used by first declaring and defining the function, and then calling the function from the main function or any other function. The function declaration includes the return type, the function name, and the parameters, and the function definition includes the function body.
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The ideal back-end app developer

What you’re looking to see on the Turbo C engineer at this point.

At this point, a skilled Turbo C engineer should demonstrate strong problem-solving abilities, proficiency in Turbo C programming language, and knowledge of software development methodologies. Red flags include lack of hands-on experience, inability to articulate complex concepts, or unfamiliarity with standard coding practices.

Digging deeper

Code questions

These will help you see the candidate's real-world development capabilities with Turbo C.

What does this simple Turbo C code do?

int main()
    printf("Hello, World!");
    return 0;
This code prints the string 'Hello, World!' to the console.
What will be the output of this Turbo C code?

int main()
    int a = 5;
    int b = 10;
    printf("%d", a + b);
    return 0;
The output of this code will be '15'. It adds two integers 5 and 10 and prints the result.
What does this Turbo C code do with the array?

int main()
    int arr[5] = {1, 2, 3, 4, 5};
    for(int i = 0; i < 5; i++)
        printf("%d ", arr[i]);
    return 0;
This code initializes an array with 5 elements and prints all elements of the array.
What does this Turbo C code do related to multithreading?

void* print_msg(void* ptr) {
    char *msg;
    msg = (char *) ptr;
    printf("%s", msg);
    return 0;

int main() {
    pthread_t thread1, thread2;
    char *msg1 = "Thread 1";
    char *msg2 = "Thread 2";
    pthread_create(&thread1, NULL, print_msg, (void*) msg1);
    pthread_create(&thread2, NULL, print_msg, (void*) msg2);
    pthread_join(thread1, NULL);
    pthread_join(thread2, NULL);
    return 0;
This code creates two threads that each print a message. The thread creation is done using 'pthread_create' and it waits for the threads to finish using 'pthread_join'.

Wrap-up questions

Final candidate for Turbo C Developer role questions

The final few questions should evaluate the candidate's teamwork, communication, and problem-solving skills. Additionally, assess their knowledge of microservices architecture, serverless computing, and how they handle Turbo C application deployments. Inquire about their experience in handling system failures and their approach to debugging and troubleshooting.

What are the different types of arrays in Turbo C?
The different types of arrays in Turbo C are one-dimensional arrays, two-dimensional arrays, and multi-dimensional arrays. One-dimensional arrays are used to store data linearly, two-dimensional arrays are used to store data in rows and columns, and multi-dimensional arrays are used to store data in multiple dimensions.
Describe the difference between a preprocessor directive and a function in Turbo C.
A preprocessor directive is a command to the compiler to perform certain operations before the actual compilation process begins. A function is a block of code that performs a specific task. Preprocessor directives are processed before the compilation of the program, while functions are executed during the execution of the program.
How would you use recursion in Turbo C?
Recursion in Turbo C is used by creating a function that calls itself. The function must have a base case to stop the recursion, and the recursive call must progress towards the base case. For example, the factorial of a number can be calculated using recursion.

Turbo C application related

Product Perfect's Turbo C development capabilities

Beyond hiring for your Turbo C engineering team, you may be in the market for additional help. Product Perfect provides seasoned expertise in Turbo C projects, and can engage in multiple capacities.