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Showing posts with label data. Show all posts

Distributed Applications

 click here complete Lecture Notes: Computer Networks

Distributed Applications

We can use any of the following two approaches in designing a distributed application.
  • Communication-Oriented Design: Begin with the communication protocol. Design a message format and syntax. Design the client and server components by specifying how each reacts to in-coming messages and how each generates outgoing meassages.
  • Application-Oriented Design: Begin with the application. Design a conventional application program to solve the problem. Build and test a working version of the conventional program into two or more pieces, and add communication protocols that allow each piece to execute on a separate computer.

Semantics of Applications

  • Normal Application: A main program which may call procedures defined within the program (proc A in this case). On return from this procedure the program continues. This procedure (proc A) may itself call other procedures (proc B in this case). Refer to the figure below:

ISO-OSI 7-Layer Network Architecture

 click here complete Lecture Notes: Computer Networks


ISO-OSI 7-Layer Network Architecture



This lecture introduces the ISO-OSI layered architecture of Networks. According to the ISO standards, networks have been divided into 7 layers depending on the complexity of the fucntionality each of these layers provide. The detailed description of each of these layers is given in the notes below. We will first list the layers as defined by the standard in the increasing order of function complexity:
  1. Physical Layer
  2. Data Link Layer
  3. Network Layer
  4. Transport Layer
  5. Session Layer
  6. Presentation Layer
  7. Application Layer

Physical Layer

This layer is the lowest layer in the OSI model. It helps in the transmission of data between two machines that are communicating through a physical medium, which can be optical fibres,copper wire or wireless etc. The following are the main functions of the physical layer:



[ computer network ] Identifying the assets,

Identifying the assets,


What am I trying to protect?

Part of a risk analysis involves identifying all things that need to be protected. Some things are obvious, like the various pieces of hardware or cardholder data. Others are apt to be overlooked, such as people who actually have access to the systems. It is essential to list all things that could be affected by a security problem or potential threat. A list of categories should include:

1. Data. Stored online, archived off-line, backups, audit logs, databases, in transit over a communication media, during execution, and during delivery (physical or otherwise) This can include cardholder data, merchant specific data, ACH files, contract information, rate information, contact information, etc.

2. Supplies. Paper, forms ribbons, magnetic media.

3. Hardware. Including CPUS, keyboards, terminals, terminal servers, routers, firewalls, disk drives, communication lines, printers, personal computers and laptops. This should include not only the hardware used for actual processing, but also the hardware used to view data and access the data. This might also include hardware systems used for access to the facilities and systems (to-kens or smart cards).

RF BASED PROJECTS


 RF BASED PROJECTS   :REPORT ARE SHORTLY COMING


  1.     DECRYPTION USING RF COMMUNICATION
  2.     SMS TRANSMITTING USING RF MODULE:> REport
  3.     RF Control Of Induction Stepper Motors and other industrial Loads
  4.     Industrial Automation System Using RF
  5.     CHANNEL RF BASED REMOTE CONTROL
  6.     Remote Areas Data Acquisation Using RF Module Abstract.
  7.     Remote Areas Data Acquisation Using RF Module Abstract.
  8.     WIRELESS CHATTING USING RF Abstract
  9.     Modern house automation (AC/DC) using RF communication Abstract
  10.     Wireless Vehicle trace using IF and IR project Abstract
  11.     DETECTING THE CONDITIONS OF REMOTE AREAS USING RF MODULE
  12.     TRACKING POLICE MAN USING RF PROXIMITY CARD
13.   NOTICE BOARD USING RF MODULE:> REport
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GSM,GPRS BASED PROJECTS

 GSM,GPRS BASEDPROJECTS  ,,,,,others report are comming soon

GSM based notice board system:> REPORT HERE

Home security system using GSM:> REPORT HERE

GPS BASED VEHICLE BILLING SYSTEM WITH SAFETY FEATURES:> REPORT HERE

DOOR LOCKING SECURITY SYSTEM UING GSM:> REPORT HERE

 Home appliance control using GSM

Child monitoring using GSM + GPS

Offline Cargo Monitoring System using GPS

Article tracking system using GPS and GSM                                

 SOFTWARE FOR SHORTCUTFILE REMOVEABALE DOWNLOAD


GSM based data monitoring system

Remote Temperature Monitoring through GSM.

Intelligent TAXI metering Based on GPS

Car security System using GSM/ GSM+GPS.

GSM based Traffic density monitoring and control

GSM based Energy Meter.

GSM based bus tracking.

SMS reader for blind.

GSM based voting machine.

Mark Announcement System using GSM.

Remote Sales Terminal.

Remote Irrigation control and monitoring using GSM

Weather monitoring using GSM for hazardous areas.

Water reservoir monitoring and PUMP station control using GSM

Wild life monitoring and location indicators for visitors using GPS+GSM
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