requires more bandwidth, storage capacity and few applications pose tight delay constraints, so the need to optimize the utilization of spectrum is felt all the more. The available radio spectrum is limited and it is getting crowded day by day as there is increase in the number of wireless devices and applications Cognitive radio technology proposed tempting solution for spectral crowding problem by introducing the opportunistic usage of frequency bands. Which are not heavily occupied by licensed users
One alternative solution to this is the use of alternate technology. Cognitive radio (CR) is an available option. Cognitive radio concept was introduced by Mitoala [2]. CR in general can be defined as the usage of licensed spectrum by an unlicensed user when the former is not using it. This is called as spectrum hole. CR uses these for transmission of data/voice [3]. CR as defined by Haykin is: “Cognitive radio is an intelligent wireless communication system that is aware of its surrounding environment
It encompasses the computer hardware and software, the network and several other devices (video, audio, photography, camera, etc.) that convert information (text), images, sound, and motion, and so on into common digital form. Yusuf, (2000)51 also defined ICT as an eclectic application of computing, communication, telecommunication and satellite technology. ICT is defined as a “diverse set of technological tools and resources used to communicate, and to
The radio reported that the department dragged its feet in developing system requirements and made changes that required redoing completed computer code. The project has closed down after it was conceived ten years ago with the state spending about $41 million on HealthMatch. Stakeholders It is a requirement that every major software development and implementation project includes three key stakeholders. These are enterprise customer, system integrator and software vendors. Most failures
Antivirus program should be chosen according to the need of the company structure. Antivirus software is computer software used to prevent, detect and remove malicious computer viruses. Most Antivirus software also works against other types of malware, such browser hijackers, keyloggers, backdoors, rootkits, trojan horses, worms, malicious adware and spyware. There are numerous types of Antivirus protection software to choose from. Signature-based detection: relies upon signatures to identify malware.
1.0 INTRODUCTION Computer-based information system (CBIS) is a computer which plays the major role and with it there are six components that support the process such as people, hardware, software, telecommunications, database and procedure. Each of these components plays their part in ensuring the system run as instructed. Along with those components, the basic requirement is power and/or electricity. This is because without electricity, there will be no process can be done. People People or information
Computer Crime Computer crime is a very broad term. It could mean anything from a total invasion by a hacker into the federal government or just the simple fact of one person letting another borrow a copy of his favorite flying game. Computers are defined in the dictionary as a machine that computes (WBD vol. 23). But to most people it is a machine that's helps us do a task easier. As we move into the 21th century though one thing is for sure, the computer will help crime become more prevalent. Hackers
A medium is a means of mass communication, such as television, radio, or newspapers. Harold Innis, a leading scholar of communication and media theories, separated media into two categories, time-biased and space-biased. Time-biased media last longer but reach few, while space-biased mediums reach many but are short lived. Twitter is a social form of media, which sends short messages that have the potential of a massive audience on a global scale, putting in Harold Innis’ category of a space-biased
every person’s daily life. It has been defined as the century of advancement of and application of information technology which act as a change agent in different aspects of business and society. Generally speaking, information is defined as knowledge derived from experience, study or instruction. Technology is defined as a use of material tools and techniques and applications of knowledge to the practical aims of human life. So, information technology is defined as the use of computers and information
situation are electronic media (radio, internet, and television ads), inn... ... middle of paper ... ...erences would have eaten into the limited resources of the company at an expense that was more than just hiring a staffing service to complete the tasks. With such an immense goal combined with a very ambitious, driven company, the key to success is in the understanding, research, and strategic planning of the recruitment efforts. The process must be well-defined and acknowledged by those leading
spontaneously but sometimes it called gadgets and make a network called a piconet. The cable-free, or wireless, technology was initially conceived by Ericson in 1994, when the company began a study to investigate the feasibility of a low-power, low-cost radio interface between mobile phones and their accessories. The company’s goal was to eliminate the need for cables. Bluetooth technology was intended to hasten the convergence of voice and data to handheld devices, such as cellular telephones and portable
INTRODUCTION Throughout the history of civilizations man tried to establish his own way to express himself and represent his ideas to others. These ways, which are defined as languages, supported the ability to communicate, providing one of the most essential instincts needed by mankind. For not over than few tens of meters, man’s sheer voice formed the first and simplest humanist wireless communication scheme, where the frequencies produced from the man's throat vibrates the surrounding air molecules
information about health. 5. Ensure that all the world’s population has access to television and radio Television and radio are important source of information, they are also important source of entertainment and relaxation. “Television and radio are older ICTs connection”. They are vital on giving nor providing people with information around the world both developed and developing countries. Television and radio provide information and educational utilities to assist both student and learners about their
Cabin Pressure is a British radio show – yes, they do still exist – that follows the four person crew of a single-plane charter airline on their exploits through the friendly skies. The program first ran in 2008, has twenty-five episodes divided into four seasons and a Christmas special, and is absolutely hilarious. I was directed towards the show while looking for anything to satisfy my Sherlock fix as Benedict Cumberbatch is one of the voice actors. I quickly fell in love with Cabin Pressure's
their smartphones. Apple allows developers to sell their apps in the iTunes store for a 30 percent cut. Third party software development is one of the ways makers are committed to their industry and products. RIM’s release of their first tablet, the PlayBook, fell short of users expectations primarily due to its lack of content and applications. RIM did not promote third party software development. Both the Samsung Galaxy and Apple iPhone offer similar services they each have unique features that
Chapter 2 REVIEW OF RELATED LITERATURE This chapter discusses (a) mass communication and mass media, (b) Pop Fiction books, and (c) Uses and gratifications theory. Mass Communication and Mass Media Foss and Littlejohn (2010) defined mass communication as a process whereby “media organizations produce and transmit messages to large publics and the process by which those messages are sought, used, understood, and influenced by audiences.” Similar to this is a meaning posted on the Education Portal
It is a software/hardware solution that monitors the radio waves. A wireless hardware sensor can report captured information to software to be recorded in a server database. Some of the advantages by using a Wireless intrusion prevention system are: • Captures information by 24/7 monitoring • Includes elaborate reporting
The infrastructure includes base stations, access controllers, application connectivity software and a distribution system. 2.4 Benefits of a wireless network Individuals and organizations can experience many benefits from a wireless network, based on facts that are shown on [9], which include: • Convenience - Access your network resources
Applications of PM and FM 1. Radio Transmitting Radio is device that use technology of using radio waves to transfer information, such as sound, by using the properties of electromagnetic energy waves transmitted through space, such as their phase, amplitude, frequency, or pulse width. If radio waves passing an electrical conductor, the oscillating fields induce an alternating current in the conductor. The information in the waves can be get back into its original form. Radio systems must have transmitter
into Italian, summarize texts, or make us breakfast without burning down the house. But will computers ever become as intelligent as human beings? According to the website Science Fiction and Fantasy World, artificial intelligence (A.I.) can be defined as "the simulation of human intelligence processes by machines, especially computer systems." (Moy, par. 2) This domain has predominantly been a field characterized by complex research in laboratory scale environments and just only recently has been