Why global variables are unacceptable, Operating System

Assignment Help:

Why Global variables are unacceptable

Global variable, for instance, are unacceptable because they break the rules of self - containment. If all procedural components are running as the same program on the same system, global are just fine. But if some functions referencing global are migrated to other platforms, their reference becomes invalid. In addition, responder (server) modules may service requests on many requesters' (client) behalf. In this scenario, the server modification of global variable on behalf of one client may affect other client requesting service as well.


Related Discussions:- Why global variables are unacceptable

What are the various disk-scheduling algorithms, What are the various disk-...

What are the various disk-scheduling algorithms? The several disk-scheduling algorithms are a. First Come First Served Scheduling b. Shortest Seek Time First Scheduling

Roles of operating systems, Describe Three major roles of operating systems...

Describe Three major roles of operating systems in business computer systems

Define different multithreading models, DIFFERENT MULTITHREADING MODELS ...

DIFFERENT MULTITHREADING MODELS Multithreading Models the majority multithreading models fall into one of the following categories of threading implementation: 1.      M

How is a process chosen for being swapped either in or out?, How is a proce...

How is a process chosen for being swapped either in or out? Swap out: a.         If the process is idle. b.         If process has been in main memory for a long time.

Explain the main functions of an operating system, Question: a) What sp...

Question: a) What special measures must be taken to ensure the reliability, availability, and security of electronic commerce and digital business process? b) What are the c

How can the deadlock be prevented-safe state, How can the deadlock be preve...

How can the deadlock be prevented-Safe State Safe state : A state is safe if the system is able to allocate resources to each process in some order and still avoid deadlock.

What is a thread, What is a thread? A thread or else called a lightweig...

What is a thread? A thread or else called a lightweight process (LWP) is a basic unit of CPU utilization, it comprises of a thread id, a program counter, a register set and a s

GIS, 1. The City of Boston needs to be about 2 acres of green space per 1,0...

1. The City of Boston needs to be about 2 acres of green space per 1,000 persons. You have been hired as the GIS expert by an independent consulting company to determine where the

Explain basic file system file system architecture, Basic File System ...

Basic File System Uses the specific device driver. Deals with blocks of data that are exchanged with the physical device. Concerned with the placement of blocks on

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd