PowerPoint Presentation On Symbian OS

Symbian Operating System PPT

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Symbian OS Presentation Transcript:

1. 1.5 billion mobile phone users (ITU) Mobile device capabilities are significantly advanced than those in the past Key question Are we going to face the same level of threat to security of mobile devices as that of in desktop environment?

2. Operating System (OS) Process Management Memory Management File Management I/O Management Networking

3. Real Time Operating System (RTOS) Characterized by timing constraints Mobile Operating System (Mobile OS) RTOS running on a mobile device

 4. Symbian established as a private independent company in June 1998, owned by Ericsson, Nokia, Motorola and Psion. Symbian is a software licensing company that develops and supplies the advanced, open, standard operating system – Symbian OS – for data-enabled mobile phones.

5. Release v6.1 2001, Release v6.2 Q1/2002, Release v7 2003 including Multimedia Framework (MMF) Release v8 2004 allowing manufacturers to build Symbian OS Release v9 2005 supporting the latest generation .

6. Browsing: full web browser support and WAP stack for mbile browsing Messaging: support MMS, EMS, SMS, POP3, IMAP4, SMTP; standard attachments; fax Multimedia: shared access to screen, keyboard, fonts and bitmaps; audio recording and playback, and image related functionality , including API for graphics acceleration, streaming and direct screen access Communication protocols: including TCP, IP version 4, IP version 6 and WAP, IrDA, Bluetooth, USB Mobile telephony: abstract API for cellular standards.

7. Data caging allows applications on a Symbian OS device to have private data which is not accessible by other applications. It is about file access control. Opposite to traditional “Access Control List”, it is “Fixed Access Control Policy

8. Small and mobile, but always available Mobile phones are both small and, by definition, mobile. This creates high user expectations. Addressing the mass-market Reliable. Data loss in a personal mobile phone causes a loss of trust between the user and the phone

9. Handling occasional connectivity Mobility constraints generally make a wireless connection preferable - whether wide area (using wireless telephony) or personal area (such as infrared or Bluetooth). Wireless connectivity is patchy, caused by different protocols Open platform An operating system for the mass-market must be open for third-party development.

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PowerPoint Presentation On Grid Computing

Grid Computing

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Grid Computing Presentation Transcript:

1. HISTORY
The term grid computing originated in the early 1990s for making computer power as easy to access as an electric power grid The ideas of the grid were brought together by Ian Foster, Carl Kesselman. Initially Globus Toolkit was designed incoorporating storage management, security provisioning, data movement, monitoring e.t.c. In 2007 the term cloud computing came into popularity, which is conceptually similar to the canonical Foster definition of grid computing

2. DEFINATION
Grid computing is the application of several computers to a single problem at the same time It allows flexible resource sharing among geographically distributed computing resources in multiple administrative domains It is basically used for Grid applications rich in graphics and multimedia. Controlled shell and controlled desktop mechanisms are used to restrict the user to execute only authorized commands and applications

3. INTRODUCTION
Grid computing depends on software to divide and apportion pieces of a program among several computers It can also be thought of as form of network-distributed parallel processing. It can be small confined to a network of computer workstations or it can be a large, public collaboration across many companies or networks.

4. INTRODUCTION
Virtualization of resources Applications can be executed by specifying the requirements, rather than identifying the individual resources to be used

5. GRID vs. SUPER COMPUTERS
Grid computing is a special type of parallel computing that relies on complete computers connected to a network supercomputer, has many processors connected by a local high-speed computer bus. Primary advantage of distributed computing is that each node can be purchased as commodity hardware

6. GRID vs. SUPER COMPUTERS
disadvantage is that the various processors and local storage areas do not have high-speed connections The high-end scalability of grids is generally favorable, due to the low need for connectivity between nodes It is costly and difficult to write programs that can be run in the environment of a supercomputer

7. DESIGN CONSIDERATION
Distributed grids can be formed from computing resources belonging to multiple indivisuals Computers which are actually Performing the calculations might not be entirely trustworthy. Measures were introduced to prevent participants from producing misleading results, and from using the system as an attack vector. Measures include assigning work randomly to different nodes and checking that at least two different nodes report the same answer for a given work unit.

8. DESIGN CONSIDERATION
There is no way to guarantee that nodes will not drop out of the network at random times. Uing different platforms with many languages, leads to tradeoff between investment in software development and the number of platforms that can be supported Cross platform languages can reduce the need to make this tradeoff, though potentially at the expense of high performance on any given node

9. MARKET SEGMENTATION
The segmentation of the Grid computing market, two perspectives need to be considered: the provider side and the user side: The Provider Side The overall Grid market comprises several specific markets. Like Grid middleware market, The market for Grid-enabled applications, The utility computing market, and the software-as-a-Service (SaaS) market.

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Grid Computing

PowerPoint Presentation On Windows Server

 PPT On Windows Server

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Windows Server Presentation Transcript:

1. Overview
Windows Server 2008 enables you to increase the reliability and flexibility of your server infrastructure. New virtualization tools, web resources, and security enhancements help you save time, reduce costs, and provide a platform for a dynamic and optimized datacenter. Windows Server 2008 can help you in many scenarios Some of these scenarios are available today, with your existing windows 2003 infrastructure.

2. Session Objectives and Agenda
Gain the required knowledge to integrate Windows Server 2008 into your existing IT infrastructure: Active Directory Group Policy Terminal Services Tons of demos

3. Active Directory
Windows Server 2008 Benefits for Active Directory Domain Considerations Schema Updates Get your RODC today DCs on Server Core Backing up and recovery

4. Windows Server 2008 Benefits for Active Directory What you get TODAY: Read Only Domain Controllers Restartable Directory Services Group Policy Enhancements Active Directory Snapshots Improved Install From Media (IFM) Directory Services Auditing

5. Domain Considerations
Domain Function Level must be Native or Windows Server 2003 mode. BDCs running Windows NT 4.0 are not supported with Windows Server 2008. No Mixed Mode No Interim Mode The first Windows Server 2008 DC in a forest must be a Global Catalog server and it cannot be an RODC. After you insert your first Windows Server 2008 DC, you can install your first RODC.

6. Prepare for the first RODC
RODCs are fantastic because they: Increase end user productivity Mitigate poor physical server security Lower impact of compromise, theft , or error Meet requirements of specific LOB applications

7. Prepare for the first RODC
Before you can install an RODC in a Windows 2000 Server or Windows Server 2003 forest, you must prepare the forest by running Adprep/rodcprep on any domain member, but it’s best to run it on the domain naming operation master. In a new Windows Server 2008 forest you do not need to run anything. You must already have at least one Writable DC running Windows Server 2008 before you install your first RODC.

8. DCs on Server
Core Installing Active Directory on Server Core is performed by using an unattended file for DCPROMO. After the reboot, the Server Core acts just like any DC on the network, and you can manage it by using RSAT.

9. Group Policy
Windows Server 2008 Benefits for Group Policy Using ADMX/ADML files Creating the Central ADMX repository Interoperability

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PowerPoint Presentation On ERP

Training On ERP At Future First

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PPT On ERP

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