Unit 1 M180 Assignment 1

For any escalations that might come up while working the queue, the Command Center should be contacted.

previous pointer value to NULL, next to temp1 and temp1 previous to null , where data from n is given to head and then list is displayed. */

I have looked over the quote and it looks good. One item we would like to remove is the SWMA for Web Query $280.92.

//starting from the beginning of array, the values in array are manipulated into a max-on-top heap.

and assigning memory using calloc (allows memory space '0' to be assigned to the very first bucket). (4.) Subsequently,

Stacks are containers of objects that are inserted and then removed according to Last-In-First-Out (LIFO). This means that the last item inserted will be the first item removed. Inserting an item is referred to as Pushing, while removing an item is called Popping. A queue works a little different than a stack does, in that it follows First-In-First-Out. So rather than having the last object removed first, the first object is removed first. Elements can be inserted at any time, but the only element that can be removed is the one that has been in the queue the longest.

A Stack is an example of a Linked List. Data items are “pushed” on to the top of the stack and items removed, or “ popped” off the list from the top in a

if (bQ[f_IO] != ID) { //sort the elements of the blocked_queue to deque from the place pointed by f_IO

The pointer from a record push in a nonclustered file to an information push is known as a column locator. The structure of the line locator relies upon whether the information pages are put away in a stack or a bunched table. For a pile, a column locator is a pointer to the line. For a grouped table, the line locator is the bunched list key.

3. A) One of the fundamental assumptions of waiting line systems is that the arrival rate cannot exceed the service rate or the system is said to be unstable. In the case, the arrival rate at times is almost equal to, or greater than, the service rate, hence

This presents the need for memory management, as the memory of the computer would need to be searched for a free area in which to load a users program. When the user was finished running the program, the memory consumed by it would need to be freed up and made available for another user when required (CIT). Process scheduling and management is also necessary, so that all programs can be executed and run without conflict. Some programs might need to be executed more frequently than others, for example, printing. Conversely, some programs may need to be temporarily halted, then restarted again, so this introduces the need for inter-program communication. In modern operating systems, we speak more of a process (a portion of a program in some stage of execution (CIT, 3)) than a program. This is because only a portion of the program is loaded at any one time. The rest of the program sits waiting on the disk until it is needed, thereby saving memory space. UNIX users speak of the operating system as having three main parts: the kernel, the shell and the file system. While DOS users tend not to use the term kernel and only sometimes use the term shell, the terms remain relevant. The kernel, also known as the "Real Time Executive", is the low-level core of the OS and is loaded into memory right after the loading of the BIOS whenever the system is started. The kernel handles the transfer of data among the various parts of the system, such as from hard disk to

Objects and Classes are used to design a program in object-oriented programming techniques. Object refers to physical and logical state of an entity where as a Class is a logical entity only. Objects are entities that have state and behavior which can be physical or logical and tangible or intangible. Banking Systems are an example for intangible objects. The characteristics of an object is determined by its State - data or value the object represents, Behavior - represents the functional aspects like start, stop and Identity – refers to the unique ID assigned and used by JVM to identify objects uniquely not visible to the user. For example: Phone is an object. It is name as Apple, Color is white which indicates the state and is used to call or text is its behavior. Object is an instance of Class, the template and blueprint of the class in used to create objects. In other words objects are the result of a class. Objects are real and runtime entities and are determined by their state and behavior.

The Advanced Message Queuing Protocol (AMQP) runs over TCP and provides a publish/ subscribe architecture which is similar to that of

Piggybacking: When the system deal with target transfers, the target transfer can be covered by those non-target transfers, because it may be transmitted earlier or delayed till later. By applying this technique the tail time of schedule will be reduced.

And Nygaard (1996) said “In object-oriented programming, an information process is regarded as a system developing through transformation of its state. The substance of the process is organized as the system components, called objects. A measurable property of the substance is a property of an object. Transformation of state is regarded as actions by objects.”