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Search results 231 - 240 of 774 matching essays
- 231: Object-Oriented Database Management Systems
- ... the rest multiple inheritance models. According to the concept of inheritance, the subclasses ca! n inherit methods and attributes from their superclasses. That means that inheritance is the mechanism that allows the generation of new software modules from existing software modules. There are four kinds of inheritances that have slightly different semantics: * Substitution inheritance: if class A is a subclass of class B, then any object of class B can be substituted by an object ... of conflicts. Such mechanisms have already been provided by the RDBMSs and hence should also be provided by the OODBMSs. A basic requirement for a database system is that in case of a hardware or software failure, the system should be able to bring itself back to the most recent coherent state of the data. This feature has to do with the concurrency control and the transaction management, but also ...
- 232: As A Technology, It Is Called Multimedia
- ... Warner, Turner Broadcasting, and Paramount have set the stage. These companies continue the race to be the first to lay solid infrastructure, and set new industry standards. Following in the shadows will be mergers between: software, film, television, publishing, and telephone industries, each trying to gain market share in the emerging market. So far, most firms have rejected the hostile takeovers that marked the media business in the 1980s. Instead, they ... stimulate the senses and enhance information retention. Multimedia uses a powerful combination of earlier technologies that constitutes an extraordinary advance in the capability of machines to assist the educational process. Interactive multimedia combines computer hardware, software, and peripheral equipment to provide a rich mixture of text, graphics, sound, animation, full-motion video, data, and other information. Although multimedia has been technically feasible for many years, only recently has it become a major focus for commercial development. Interactive multimedia systems can serve a variety of purposes but their great power resides in highly sophisticated software that employs scientifically based educational methods to guide the student through a path of instruction individually tailored to suit the special needs of each person. As instruction progresses and intelligent systems are used, the ...
- 233: Permeability of Hydrophilic
- ... 2 monolayers used as standard. The radioactivity of the samples was determined using a standard liquid scintillation technique. The apparent permeability coefficient was calculated as described before (Artursson 1990), using a Microsoft Excel 4.0 software package (Macintosh Power PC computer and Microsoft Office software) and templates modified by K. Palm. Electrophysiological measurements Transepithelial electrical resistance, short circuit current and potential difference were measured by an in-house computer-based automatic system using a single unit Transwell diffusion chamber (Grεsjφ & Karlsson, unpublished results). Development of electrical parameters in 2/4/A1 cells was studied over time (days 1-10). The data was processed using a Lab View software package modified by Grεsjφ et al. Cell morphology 2/4/A1 cells were routinely monitored under phase-contrast microscope each day. At appropriate time points nuclei were stained with DAPI (4,6-diamidino-2- ...
- 234: What Is A Monopoly
- ... of a corporation or person trying to innovate and create standards for the success of their business. First of all, Microsoft is a technology corporation headed by Bill Gates that produces computer operating systems and software. It was formed in the 1970's and their objective was to create an operating system so one could run programs on a computer. They began with MS-Dos and eventually developed the Windows line of operating systems. The argument many pose is that Bill Gates created an empire that completely controls the market. However, this is not the whole story. Microsoft has created a standard for the computer software industry. Because of these standards, the world has been brought together. People can use their software and have it transferable without having to worry if it will run on a certain computer. When someone says that they have windows it is widely accepted that anything will run on this operating ...
- 235: Economic Espionage
- ... tape was missing. A Quebec based company with the laser-based system for inspecting materials used in, among other things, the stealth aircraft, had three computers stolen. On their harddrives were confidential codes for specialized software used by the Canadian Armed forces. The above are all true examples of the modern threat facing international business today known as industrial or economic espionage. The end of the cold and economic pressures have ... plans and confidential procedures or anything to give your company or country a competitive edge over another (Perry:1996). The areas that interest industrial spies the most include radiation transfer technology, systems diagnostic and testing software, traveling wave tubes, aviation technologies, microwave monolithic integrated circuits, inferred signature measures software, radar technologies, wet processing systems, information management and processing, simulation technologies, physical security technologies, ram-jet engine and ram-jet technologies.(Special Security news letter:1995). Although this is not all of the areas ...
- 236: Business Plan
- ... A group study is packaged and published, a complete study of a specific market, channel, or topic. Examples might be studies of developing consumer channels in Japan or Mexico, or implications of changing margins in software. 3. 2 Competitive Comparison The competition comes in several forms: 1. The most significant competition is no consulting at all, companies choosing to do business development and channel development and market research in-house. Their ... We are also studying the possibility of newsletter or electronic newsletter services, or perhaps special on-topic reports. 4. 0 Market Analysis Summary Progressive will be focusing on high-technology manufacturers of computer hardware and software, services, networking, who want to sell into markets in the United States, Europe, and Latin America. These are mostly larger companies, and occasionally medium-sized companies. Our most important group of potential customers are executives ... or Olivetti. These companies will be calling on Progressive for development functions that are better spun off than managed in-house, and for market research, and for market forums. Medium sized growth companies: particularly in software, multimedia, and some related high growth fields, Triangle will be able to offer an attractive development alternative to the company that is management constrained and unable to address opportunities in new markets and new ...
- 237: Thin Clients
- ... of a clear identity. A PC is a PC, no matter who manufacturers it, and 95 percent of PCs use the Windows OS. It s clearly a commodity market around which a vast array of software applications has been built. Thin-client devices do not draw on such a common identity. There are Windows terminals, Java computers, network computers and even a new breed of ultra-portable PDA devices. Instead of ... percent, thin-client technology sounds like a panacea for much of what ails IT. But evaluating trends and cutting through the hype in this developing market isn t easy. For the immediate future, developments in software architecture are expected to drive the market. Hardware solutions will emerge as the software architecture stabilizes and currently deployed PCs age out of service. Many predict what may lie ahead for this market. The Windows NT server 4.0 Terminal Server Edition (TSE) software model dominance will be ...
- 238: Object-Oriented Database Management Systems
- ... and the rest multiple inheritance models. According to the concept of inheritance, the subclasses can inherit methods and attributes from their superclasses. That means that inheritance is the mechanism that allows the generation of new software modules from existing software modules. There are four kinds of inheritances that have slightly different semantics: * Substitution inheritance: if class A is a subclass of class B, then any object of class B can be substituted by an object ... of conflicts. Such mechanisms have already been provided by the RDBMSs and hence should also be provided by the OODBMSs. A basic requirement for a database system is that in case of a hardware or software failure, the system should be able to bring itself back to the most recent coherent state of the data. This feature has to do with the concurrency control and the transaction management, but also ...
- 239: Internet Censorship Laws
- ... finding the fake credit card numbers on the Internet either. So laws saying that porn can't be aren't just good enough. The problem should be addressed from the technical side. For example the software makers of the Internet browsers such are Microsoft and Netscape should build in the code which will test the site for some specific rating, and only after the site passes that test the site will ... put the subject into a very good view, from totally different perspective. In the following couple of paragraphs I am paraphrasing his ideas. Think of the world today. Computers are everywhere. There are many different software packages for those computers. You use them to protect your homes from robbers, to conveniently mail you important papers to any place you need without leaving your home, to control your office computer from any ... you like that? Well, "that" exists. Those people are known as hackers and government defines their work as criminal activities. If it wouldn't be for the hackers many of the security bugs in the software wouldn't be patched and fixed today. They find flows, they notify the manufacturers of the product, and often they patch it themselves. The World Intellectual Property Organization treaty make it all illegal, and ...
- 240: Internet The Advantages And Disadvantages
- ... system there are no charges for long distance service or communication with foreign countries. E-mail and instant messages (found in programs such as America Online and ICQ) can be used to send images and software. (Sterling n. page) Internet technology has gone as far as to allow people to make new friends without any physical contact. One way to meet new people is to join an Internet discussion group. In ... children but can also be used to mask adults. They enter children s chat rooms and coax the children to trust them. Nonetheless, denying the children access to the Internet is not the solution, perhaps software is. However software limiting children s access to web pages have not been successful. In some case the software does not filter out all inappropriate pages but filters out non-objectionable pages. (Should children be kept off- ...
Search results 231 - 240 of 774 matching essays
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