Programming Language and Variable Concepts Quiz

<p>Variables and expressions to memory cells and CPU executions</p> Signup and view all the answers

<p>Dynamically allocate memory</p> Signup and view all the answers

<p>A variable in programming is an abstraction of a memory cell, representing a location where certain values can be stored. It is identified by a name, such as 'x', and is associated with a specific memory location for storage and retrieval of data.</p> Signup and view all the answers

<p>Imperative languages abstract von Neumann architecture by modeling variables as memory cells and expressions as CPU executions. Variables in imperative languages correspond to memory cells for storing data, while expressions represent the operations executed by the CPU to modify memory contents.</p> Signup and view all the answers

<p>Variables in programming are defined by specifying their data type and name, such as 'int i'. They are associated with storage by reserving memory space for the specified data type. For example, the declaration 'int i;' allocates memory space to store an integer value.</p> Signup and view all the answers

<p>The general memory layout in programming includes the stack, heap, static, and code segments. The stack segment is used for saved procedure information, the heap segment is for explicitly allocated memory space (e.g., malloc()), the static segment stores global variables, and the code segment contains the program code.</p> Signup and view all the answers

<p>The 'malloc()' function in programming is used to dynamically allocate memory space during program execution. It requests a specified amount of memory from the heap segment and returns a pointer to the allocated memory block. This allows for flexible memory allocation and deallocation at runtime.</p> Signup and view all the answers