Application of linked list concepts are useful to model many different abstract data types such as queues, stacks and trees. If we restrict the process of insertion to one end of the list and deletions to the other end, then we have a model of a queue. That is, we can insert an item at
Application of Linked List Dynamic Memory Allocation Read More »
It is likely that we discover later, the previously allocated memory is not sufficient and we need additional space for more elements. It is also possible that the memory allocated is much larger than necessary and we want to reduce it. In both the cases, we can change the memory size already allocated with the
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calloc in c is another memory allocation function that is normally used for requesting memory space at run time for storing derived data types such as arrays and structures. While malloc allocates a single block of storage space, calloc in c allocates multiple blocks of storage, each of the same size, and then sets all
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A block of memory may be allocated using the function malloc in c. The malloc function reserves a block of memory of specified size and returns a pointer of type void. This means that we can assign it to any type of pointer. It takes the following form: ptr = (cast-type *) malloc(byte-size); ptr is
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Most often we face situations in programming where the data is dynamic in nature. That is, the number of data items keep changing during execution of the program. For example, consider a program for processing the list of customers of a corporation. The list grows when names are added and shrinks when names are deleted.
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We can access and assign values to the accessing structure members in a number of ways. As mentioned earlier, the members themselves are not variables. They should be linked to the structure variables in order to make them meaningful members. For example, the word title, has no meaning whereas the phrase ‘title of book3’ has
Accessing Structure Members in C – Pedagogy Zone Read More »
Surveillance generally refers to monitoring or observing a person or a group of people from a certain distance, frequently, although not necessarily, comprising the use of electronic equipment and/or other technological devices. Wireless surveillance balloon equipment is typically used in warfare and/or in counter-insurgency operations to monitor the activities of an enemy from a distance,
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Engineering design is a complex process which involves interaction between many skills and discipline. In traditional design, the components are designed through mechanical, hydraulic or pneumatic components and principles. But in a mechatronics approach, mechanical, electronics, computer technology and control engineering principles are included to design a system. Figure shows the schematic of traditional and
Traditional and Mechatronics Design – Pedagogy Zone Read More »
The mechatronics system design process consists of the following stages. Stage 1: Need for design The mechatronics system design process begins with a need. Needs are usually arise from dissatisfaction with an existing situation. Needs may come from inputs of operating or service personal or from a customer through sales or marketing representatives. They may
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However, the difference between PLC and PC certain characteristics as follows. The architecture of a PLC is basically the same as that of a general purpose computer. The application of PLC is for industrial environment with wide variation in atmosphere conditions and PLC is very rigid and compact. The PLC programming can be accomplished in
Difference Between PLC and PC – PLC’s Vs Computers Read More »