System unit is a case that contains electronic component of the computer used to process data. The case of the system unit, sometimes called the chassis, is made of metal or plastic and protects the internal electronic components from damage. Explain the electronic components in system unit and its function.Question 2An operating system (OS) is a set of software that manages computer hardware resources and provides common services for computer system. Explain the different types of Operating...
Adaptive query processing is a pool of techniques which enables effective and optimized execution of queries. In this paper, the first section contains a brief overview of what we actually mean by Adaptive Query Processing and some of the dimensions for the same. The factors which led to Adaptive Query Processing are discussed in the second section. The next section considers three different families of system and compares them on the basis of some important aspects of Adaptive Query Processing...
Over a period of time, Smart Phone Applications have attracted a lot of companies for investment due to their access to vast number of cell phone users. Different kind of Mobile Phones[10] Due to the fast internet speed because of 3G and 3.5 G technologies it is much more convenient for users to book their train/flight tickets, use mobile banking services, access GPS information, check out the city alerts etc. through their personal smart phones. As more and more people are shifting to smart...
A spacecraft in orbit around the earth to receive and retransmit radio signals. Communications satellites amplify and sort or route these signals. In earlier days they functioned much like ground microwave repeaters but with greatly increased coverage. Whereas a ground repeater relays signals between two fixed locations, a communications satellite interconnects may locations, fixed and mobile, over a wide area. With the advent of on-board processing, switching and rerouting of signals has...
INTRODUCTION The Linux Virtual Server (LVS) allows load balancing of networked services such as web and mail servers using Layer 4 Switching. It is extremely fast and allows such services to be scaled to service 10s or 100s of thousands of simultaneous connections The LinuxVirtualServerProject(LVS) implements layer4switching in the LinuxKernel. This allows TCP and UDP sessions to be load balanced between multiple realservers. Thus it provides a way to scale Internet services beyond a single...
Wireless industry as compared to the wired, has made rapid strides and is still very much in demand; therefore the value of the radio frequency spectrum used in wireless communications is reaching astronomical figures. Su and Zhang (2008) reported that only 6% of the electromagnetic spectrum bands are utilized in the US. The recently held integrated spectrum auction 73 by the FCC from January 2008 to March 2008 resulted a winning bid of $19,120,378,000 thus covering 2091 licenses and a net...
Our group thinks Cloud Computing will be next big flattener. The cloud has become a synonym for internet, when combines with computing, the meaning gets bigger and fuzzier. Some analysts define cloud computing as narrowly as an enhanced version of utility computing i.e. collection of virtual servers connected over the Internet. A very broad view is anything that is beyond your firewall is cloud computing. If you have an e-mail account with a Web-based e-mail service like Hotmail, Yahoo! Mail or...
A thin client, sometimes called a lean client, is a low-cost, centrally-managed computer devoid of CD-ROM players, diskette drives, and expansion slots. The term derives from the fact that small computers in networks tend to be clients and not servers. A thin client is a computing device that's connected to a network. Unlike a typical PC or "fat client," that has the memory, storage and computing power to run applications and perform computing tasks on its own, a thin client functions...
Abstract: The relationship between accessibility and usability can be a contentious issue especially with the advent of new web technologies. Does accessibility have an adverse effect on usability and vice versa and is this in anyway affected by new web technologies? With the advent of new web technologies it is thought by some that the two supposedly bipolar methodologies of web design and evaluation contradict one another even more. In order to determine if this is in fact true this paper...
Why should you updated your computer? - Windows Updates are your front line of defense in infected by malware, virus and spyware. If you cannot run Windows Update, you are probably infected as malware, spyware, virus etc and firstly its will break Windows Update and stop it from running normally. If your antivirus does not pick up the infection then it is more than likely a "boot virus" and you are left with only one choice so that you can guarantee the infection has gone. You could...