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The paper gives an overview of the current computer hardware trends and software issues. The optimal utilization of a multiprogrammed environment with multi-core processors is an extremely complex job. The scheduling in such an environment is an NP hard problem. The authors of the paper propose a novel approach to model the behaviour of the computing environment. Furthermore an application modelling...
In this paper we utilize a light sensor device with a fuzzy logic controller (FLC) to sense the brightness of different environments and to automatically adjust backlight brightness to a level that allows the user's eyes to be comfortable. Simultaneously this device also reduces the power consumption of the LCD panel. A common operating system defines the light sensor at present, and we add the FLC...
Graphic design applications are often used for the editing and design of digital art. The same applications can be used for creating counterfeit documents like identity documents (IDs), driver's licenses or passports among others. However the use of any graphic design application leaves behind traces of digital information which can be used during a digital forensic investigation. Current digital...
In recent times, the use of the Internet and the World Wide Web has significantly impacted our lives and daily activities. From 2000–2011, the use of the Internet has increased to 151.7% within North America. As infrastructures in all parts of the continent continue to improve and advance the technological capabilities of the Internet and the World Wide Web, more individuals are its communications...
This paper describes the students' awareness regarding the methods employed to mitigate the negative impact of computers on the environment. Several topics considered important by the students were analyzed — transforming computers into recyclable waste, increasing users' awareness toward extending computer lifetime, encouraging the reuse of old and obsolete computers, employing new ecological materials...
The rapid increasing of variety and quantity of business brings about serious challenge to the server resources of datacenters. It is difficult for the traditional solution of server running and management to tackle with the changing need of services. The physical server sprawl leads to shortage of computer rack and room space. Meanwhile, the energy consuming increases, so do the difficulty of the...
Motivated by the increasing importance of knowing which operating systems are running in a given network, we evaluated operating system discovery (OSD) tools. The results indicated a serious lack of accuracy in current OSD tools. This thesis proposes a new approach to OS discovery which addresses the limitations of existing tools and leads to a more flexible, less intrusive, and much more accurate...
This paper describes a software design that can help system engineer remastering an Ubuntu Linux distribution. The software will be used to create recovery media for rural digital learning implementations in Indonesia. The remastering product contains preinstalled multimedia software for distance learning; furthermore, it is Live-CD Linux type and it can do unattended installation. This software offers...
If we replace our gasoline-engine cars with truly electric cars, we can build a new carmaking industry. A few huge, often financially troubled companies with slow-changing technology dominate today's industry. But we can build a new carmaking industry as big, bold, vibrant and fast-moving as the computer industry. A modular car architecture that builds on the advantages of an electric — not mechanical...
Since the computer was invented, it has being developed for about tens of years. As it is developing, there are lots of technologies which belong to computer technology emerged such as network technology, database technology, embedded technology, and so on. What the aim of these technology invented is for people communicating more convenient and sharing information more easy. Until now, there are...
The latest talk in IT industry is about server virtualization. Virtualization increase server utilization rates. Along with this, it lets you consolidate multiple operating systems and applications as per physical server and deploy new applications in minutes. The benefits in utilization, energy savings, manageability, service levels and cost models can be dramatic. If we come to concept of actual...
In this paper, we present an approach to provide different execution environments within Omnivore, our peer-to peer based scheduling system for operating a pool of unused desktop computers as a desktop Grid, and integrating the desktop Grid into a larger Grid environment via the Grid Way meta-scheduler. The proposed approach is based on extending Omnivore to support virtualization technologies. A...
Processor Allocator (PA) is one of the main components to achieve high performance Chip Multiprocessors (CMPs). The task of the PA is to assign a set of processors to execute an incoming job scheduled by the Operating System (OS). An efficient PA is one that allocates an incoming job, if a suitable free submesh exists, with minimum overhead. In this paper, we propose a new contiguous processor allocation...
In order to save the inconvenience on byte access of ROM register, this paper gives an improved memory management for stack computers. This solution has designed an address management unit for the 16-bit macro computer based on forth operating system. It also makes a detailed description of the specific composition of the components and makes functional simulations on FPGA platform. The experiments...
The study of design issues and implementation techniques for hyper visors is becoming an increasingly important aspect of operating systems pedagogy. There is a demand for students, especially in the field of information assurance, who understand the security issues exposed by the improper use of virtualization functionality provided by modern processors and how virtualization can be exploited to...
Computer Forensic process consists of Preparation, Acquisition, Preservation, Examination and Analysis, and Reporting. With the booming of the virtualization technology and the popularity of virtual machines for end users to deal with daily works, the probability of using virtual machines for malicious purposes keeps increasing. In this paper we propose a methodology by using virtual forensics for...
Garbage collection as a key technology for solid-state storage (SSD), it's has critical influence for the SSD's performance. This article addressed the low efficiency, high cost problem of the presented Garbage Collection (GC) Algorithm, Proposed a new Efficient NAND Flash GC Algorithm Based on Area and Block (GCbAB) Operation. The algorithm is not only efficient, low cost, but took into account the...
Universities have a great importance to every nations, their significance cannot be minimized. Generating of a bright students and future recourses are the main purpose of the universities‥ Almost in every country, governments spend huge amount of budget to upgrade the condition of university in every year either by constructing new ones or employ good faculties at any cost. However, in spite of this...
In the recent years, the technologies develop rapidly. Mobile devices have become very important tools in the modern world. They combine many functions like OS, camera, video, internet, Bluetooth, calendar, address book, application. They contain copious personal information, high mobility and powerful hardware, so the crimes of smart phone increase rapidly. There are many kind of modus operandi increasing...
Communication has been a major problem for children with cognitive disabilities and spastic children. They are unable to effectively communicate their needs to their parents and caretakers. Modern advancements in communication technology, with increased capabilities of mobile phones, provide scope to design assistive technologies for these children. In this paper, we describe the design of a smartphone...
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