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Van De Groenendaal H.,EngineerIT
EngineerIT | Year: 2010

HP and Microsoft have entered into a $250-million, three-year agreement to significantly simplify cloud computing technology for business of all sizes. The two companies plan to build on next generation infrastructure to advance cloud computing by speeding up application and implementation to eliminate the complexities of IT management and automate existing manual processes, thereby lowering overall costs. The HP/Microsoft agreement represents the industry's most comprehensive technology stack integration to date - from infrastructure to integration. Seventy percent of companies using cloud- based services plan to move additional applications to the cloud in the next 12 months. That is the finding in a study by Mimecast, an holistic e-mail management company offering SaaS-based email archiving, continuity, security and policy control.


Van De Groenendaal H.,EngineerIT
EngineerIT | Year: 2010

Features of three types of power back-up systems that can be used in offices to deal with power failure are discussed. Sometimes called standby, it is designed to offer a low price solution to environments that require minimal power protection. An off-line uninterruptible power supply (UPS) offers backup in the event of a total power cut, but does not incorporate any significant power conditioning facility. This UPS technology provides basic power protection at mid-range prices. On-line UPS technology is simply the most ideally suited solution to any mission-critical application whether that be in IT, healthcare, communications or production. A parallel system comprises multiple UPS modules, which are installed to operate in parallel to support a common critical load. There are two main reasons for selecting this type of system. The first would be to increase the UPS capacity, which enables the system to power a larger load than possible with a single module. The second reason is to increase the system reliability by introducing modular redundancy.


Van De Groenendaal H.,EngineerIT
EngineerIT | Year: 2011

Nokia Siemens Networks (NSN) introduced its Liquid Net that creates networks that can adapt in an instant to changing customer needs, using existing capital investments more efficiently and generating entirely new revenue opportunities. Liquid Net also uses automated, self-adapting broadband optimization to deliver services and content to ensure the best customer experience by always being aware of the network's operational status and the services being consumed. The system channels traffic in the transport network along the best path at the lowest cost between sites. The liquid concept is based on four key enablers. By using automated, self-adapting broadband optimization that makes the network self-aware of its operational status and the services being consumed, it can deliver services and content in a manner that ensures the best experience at the lowest cost. By use of software-defined applications on multi-purpose hardware that are both configurable and can run on multi-purpose platforms, flexible capacity across the network is achieved.


Van De Groenendaal H.,EngineerIT
EngineerIT | Year: 2011

Ivan Sams, the Department of Computing Sciences, Nelson Mandela Metropolitan University in Port Elizabeth, is working on a multi-touch approach to collaborative information retrieval (CIR) showing great promise for application in boardrooms and in areas where a number of employees may be working on a project that requires drilling down into data and moving it around on a screen. Prof. Janet Wesson, head of the Telkom Centre of Excellence, supervised the project. She said that touch screen input is a very direct form of human-computer interaction as the input and output devices are on the same surface, making it an appealing choice for interaction. In his research, Sams found that several multi-touch frameworks have already been developed. These frameworks all provide support for basic gestures, and most provide for extending the gestures and visualisation of the gestures. New gestures can be specified in the gesture definition language (GDL) which simplifies the creation of new gestures and hides the complex processing behind the gesture recognition engine.


De Groenendaal H.V.,EngineerIT
EngineerIT | Year: 2011

Several companies are outsourcing their data centers or collocating in a vendor-neutral data center ensuring the reduced costs for companies. The increased demand for mobility, with more and more employees bringing their laptops and tablet PC into the workplace leads to a challenge for connectivity and more comprehensive security. Lex van Wyk, MD of Teraco believes that in multi-tenant data centers the energy resource requirements are reduced through the economies of scale gained from centralized and shared services. Companies can host their own business critical data but with equipment located in a vendor-independent data center. Van Wyk believes that there are several issues that need to be addressed before collocating such as the company offer a good service level agreement and 5/9 availability and there should be an open access with multi-vendor connectivity.


Van De Groenendaal H.,EngineerIT
EngineerIT | Year: 2011

Department of Science and Technology (DST) and Microsoft have recently signed memorandum of understanding (MoU) to ensure the foreign direct investment in research and development. The MoU is aimed encouraging existing information and communication technology (ICT) skills program to support knowledge-generating capacity. The DST and multinational private sector partners have a solid framework against which to quality-check projects in which they are engaged together. A student-to-government program could do much to engage unemployed graduates, give them the appropriate practical training and place them in internships to expand their skills. DST is leading the implementation of the National Information and Communication Technology Research, Development and Innovation strategy aimed at achieving an increase in advanced human resource capacity, and build robust innovation chains that results in the creation of high-tech ICT small enterprises.


Van De Groenendaal H.,EngineerIT
EngineerIT | Year: 2011

Dr. Timothy Gibbon at the Department of Physics at the Nelson Mandela Metropolitan University (NMMU) in Port Elizabeth shares views on a project, GigaWam, undertaken by him during a three year post-doctoral stint in Denmark. GigaWam is a €6,9-million EU-funded project aimed at developing all technologies for a complete fiber to the home-network based on wavelength-division-multiplexed passive optical network (WDM-PON) technology. GigaWam offers 1 Gbps bi-directional access per user. Dr. Gibbon worked with six different companies, each one producing a different component for the network. He worked to produce a system specification for the entire network. Each company would then develop and provide their components to be incorporated into an experimental network that put together and tested in the lab at the Technical University of Denmark. Dr. Gibbon also worked on other projects that include the short range ultra wideband (UWB) wireless technology for home and personal network applications such as connecting a DVD player to a TV.


Van De Groenendaal H.,EngineerIT
EngineerIT | Year: 2011

Telkom Mobile has introduced its network that uses billboards to house their base stations and antennas. There are 22,000 billboards in South Africa and Telkom Mobile has signed a long term agreement with the owners to collocate their base stations on these sites. Base stations at billboard sites reduce the visual impact associated with mobile radio networks. The total antenna solution fits over the billboard without any invasive measures to secure it. The antennas are equipped with remote tilt functionality to allow vertical adjustment of the radiated pattern in the field. The unique facility allows the signals to be beamed to the target area, increasing efficiency and focusing signals where it benefits users of the network most. The radio network is built on a flexible technology platform that allows it to switch between multiple technologies such as GSM, UMTS and in the near future to LTE, operating on the network's currently operating frequency bands.


Van De Groenendaal H.,EngineerIT
EngineerIT | Year: 2011

The mobile radio industry or public mobile radio (PMR) is rapidly changing from FM to digital due to increasing demands from the private and public sectors. These sectors seek more services, greater flexibility, and security and need to make more channels available within the limited frequency allocations for mobile services. There are two standards in the existing markets for transition of PMR from FM to digital, such as a system originating from Icom Japan, called IDAS and terrestrial trunked radio (TETRA), a digital trunked mobile radio standard developed by the European Telecommunications Standards Institute (ETSI). The objective of the TETRA standard is to meet the needs of traditional professional mobile radio (PMR) user organizations. it specifies the network interfaces, along with the services and facilities in detail to enable independent manufacturers to develop infrastructure and radio terminal products for full interoperatability with each other.


Van De Groenendaal H.,EngineerIT
EngineerIT | Year: 2010

Some of the significant issues associated with the introduction and operation of the Internet are discussed. Arthur Goldstuck, South Africa, links the question of Internet users frustrated by over-promises and under-delivery to the promises of the broadband. There is a significant difference between what users are promised and what they get. ADSL that promises a user 1 Mbps may actually deliver between 55 and 255 kbps, which is a dramatic gap in promise versus delivery. Those who travel to other countries enjoy a much better Internet experience there. Many network providers of the country lack the capacity or the tools to deliver the service and it is essential for service providers to offer two types of services, such as a contended service at x price which is not guaranteed and an un-contended, guaranteed service at an x-plus price, but delivering quality.

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