Process Creation Operating systems need some way to make sure all the necessary process exist. In very simple systems, or in systems designed for running only a single application, it may be possible to have all the process that will ever be needed be present when the system comes up. In general-purpose systems, however, some way is needed to create and terminate. In general-purpose systems, however, some way is...... Similar Editorial : by mfuzi. | Source : Best Computer For The Money
Private Key Certificates The public-key authority could be somewhat of a bottle neck in the system, for a user must appeal to the authority for a public key for every other user that it wishes to contact. The directory of names and public keys maintained by the authority is vulnerable to tampering. An alternative approach can be used by participants to exchange keys without contacting a public-key authority, in a way that...... Similar Editorial : by Michael Challiner. | Source : Best Computer For The Money
Random Number Generation Random numbers play an important role in the use of encryption for various network security applications security applications. A number of network security algorithms based on cryptography make use of random numbers. The use of random numbers for the nonce frustrates opponent`s efforts to determine or guess the nonce. Session key generation is done by a key distribution center or by one of the...... Similar Editorial : by Topbiz. | Source : Best Computer For The Money
Structure And Problem Solving Problems solved on digital computers have become progressively larger and more complex. The computer programs providing the solutions to such problems have grown larger and more difficult to understand. The programmer(s) responsible for implementing the solutions to these larger problems are given volumes of information consisting of problem specifications and flowcharts.The task of writing a...... Similar Editorial : by Alien. | Source : Best Computer For The Money
Hard Disks Since the early computer, the storage space for information has always been a big issue. Form the first generation hard drives that could deposit only a couple of mega bytes of information to the resent ones that store up to 360 GB, computers have come a long way. In these modern days, hard disk space is no longer a problem because we have a wide range of products that are more than willing to be...... Similar Editorial : by Pawan Bangar. | Source : Best Computer For The Money
Virus Counter Measures The ideal solution to the threat of virus is prevention. Do not allow a virus to get into the system in the first place. This goal is, in general, impossible to achieve, although prevention can reduce the number of successful viral attacks. Best approach would be detecting, identifying, and removing. If detection succeeds but either identification or removal is not possible, then the alternative...... Similar Editorial : by Philippa Gamse. | Source : Free Adware And Spyware Removal
Using Synchronization In Threads In a multithreaded application, when threads need to share thread data with each other, the application should ensure that one thread does not change the data used by the other thread. Data corruption might occur if there are two threads, one that reads your salary from a file and another thread tries to update the salary. C sharp enables you to coordinate the actions of multiple threads by using...... Source : Best Computer For The Money
Types Of Delegates There are types of delegates, Single-Cast delegate and Multicast delegate. A Single-cast delegate can call only one method at a time, whereas a Multicast delegate can call multiple methods at the same time.A Single-cast derives from the System.Delegate class. It contains reference to one method only at a time. In the preceding example, the delegate used is a single-cast delegate. The WriteConsole ...... Similar Editorial : by David Johnson. | Source : Best Computer For The Money
net Framework Class Library The .NET Framework class library works with any .NET language, such as VB.NET, VC++ .NET, and VC#. This class library is built on the object-oriented nature of the runtime. The library provides classes that can be used in the code to accomplish a range of common programming tasks, such as string management, data collection, database connectivity, and file access.One of the important features of...... Similar Editorial : by Wayne and Tamara. | Source : Best Computer For The Money
Process Terminations After a process has been created, it starts running and does whatever it`s job is. However, nothing lasts forever, not even processes. In both UNIX and WINDOWS, after a process is created, both the parent and child have their own distinct address spaces. If either process changes a word in its address space, the change is not visible to the other running process.The new process gets terminated by...... Similar Editorial : by Hans Peter Oswald. | Source : Best Computer For The Money
Physical Dump Two strategies can be used for dumping a disk to a tape: a physical dump or a logical dump. A physical dump starts at block 0 of the disk, writes all the disk blocks onto the output tape in order, and stops when it has copied the last one. Such a program is so simple that it can probably be made 100% bug free, sometime that can probably not be said about any other useful program.There is no value...... Similar Editorial : by Jesse Miller. | Source : Best Computer For The Money
One Interface, Multiple Functions The term polymorphism was derived from the Greek words `poly` and `morphos`, which mean `many` and `forms`, respectively. In OOP, polymorphism is often expressed by the phrase "one interface, multiple functions". This expression means that polymorphism allows one interface to be used for multiple functions. Polymorphism can be applied for reducing the complexity within the functions of a class...... Similar Editorial : by Paul Greatskin. | Source : Best Computer For The Money
Logical Dump A logical dump starts at one or more specified directories and recursively dumps all files and directories found there that have been changed since some given base date (the last backup for an incremental dump for a full dump). In a logical dump, the dump tape gets a series of carefully identified directories and files, which makes it easy to restore a specific file or directory upon request...... Similar Editorial : by pmegan. | Source : Best Computer For The Money
Multithreading Multithreading helps to perform various operations simultaneously and saves time of a user. A multithreaded program has a main thread and other user-defined threads to perform multiple tasks simultaneously.The microprocessor allocates memory to the processes that you execute. Each process occupies its own address space or memory. However, all the threads in a process occupy the same address space....... Source : Best Computer For The Money
Disk Quotas To prevent people from hogging too much disk space, multiuser operating systems often provide a mechanism for enforcing disk quotas. The idea is that the system administrator assigns each user a maximum allotment of files and blocks, and the operating system makes sure that the users do not exceed their quotas. When a user opens a file, the attributes and disk addresses are located and put into an...... Similar Editorial : by Emanuele Allenti. | Source : Best Computer For The Money
