How many coprocessor are there in 8086?

How many coprocessor are there in 8086?

Which is the coprocessor of 8086? Explanation: 8087 is the coprocessor for both 8086 and 8088.

What are the three basic multiprocessor configuration that 8086 can support?

There are three basic multiprocessor configurations.

• Coprocessor configuration.
• Closely coupled configuration.
• Loosely coupled configuration.

What is multiprocessing configuration?

Multiprocessing is the situation in which more than one processor are working in unison. So, they must be well configured so as not to generate any type of problem. There are typically 3 types of configurations: Master / Slave Configuration, Loosely Coupled Configuration, and Symmetric Configuration.

What is multiprocessor and its types?

A Multiprocessor is a computer system with two or more central processing units (CPUs) share full access to a common RAM. There are two types of multiprocessors, one is called shared memory multiprocessor and another is distributed memory multiprocessor.

What is advantage of multiprocessor system?

The advantages of the multiprocessing system are: Increased Throughput − By increasing the number of processors, more work can be completed in a unit time. Cost Saving − Parallel system shares the memory, buses, peripherals etc. Multiprocessor system thus saves money as compared to multiple single systems.

What if we make main method private?

But if you declare main method as private, you would not be able to execute the class as a standalone java program. Any java class that needs to be executed as a standalone file needs to have a main method that is public, static and returns a void.

What does it mean if a method is made final?

You use the final keyword in a method declaration to indicate that the method cannot be overridden by subclasses. The Object class does this—a number of its methods are final . A class that is declared final cannot be subclassed.

What are the ways to avoid object creation?

In java we can avoid object creation in 2 ways :

1. Making the class as abstract, so we can avoid unnecessary object creation with in the same class and another class.
2. Making the constructor as private ( Singleton design pattern ), so we can avoid object creation in another class but we can create object in parent class.

Is object creation expensive in Java?

Each object creation is roughly as expensive as a malloc in C, or a new in C++, and there is no easy way of creating many objects together, so you cannot take advantage of efficiencies you get using bulk allocation.

What is lazy initialization Java?

Lazy initialization is a performance optimization. It’s used when data is deemed to be ‘expensive’ for some reason. For example: if the hashCode value for an object might not actually be needed by its caller, always calculating the hashCode for all instances of the object may be felt to be unnecessary.

Should we avoid object creation in Java?

There is no way to avoid Object creation in Java. Object creation in Java due to its memory allocation strategies is faster than C++ in most cases and for all practical purposes compared to everything else in the JVM can be considered “free”.

How do you prevent a class from being instantiated in Java?

Avoid instantiating a class in java

1. If you don’t want to instantiate a class, use “abstract” modifier. Ex: javax. servlet. HttpServlet, is declared as abstract(though none of its methods are abstract) to avoid instantiation.
2. Declare a no argument private constructor.

What is singleton class in Java?

In object-oriented programming, a singleton class is a class that can have only one object (an instance of the class) at a time. After first time, if we try to instantiate the Singleton class, the new variable also points to the first instance created. To design a singleton class: Make constructor as private.