1.Introduction: Multimedia communication is an effective way of communicating through mixed media such as visual, audio and text. Information Technology and communications go hand in hand, as they are interdependent on each other. Multimedia communication has transferred into an effective and complex function from 1970 until date.
Multimedia communications includes services mentioned below:
File Transfers - High-Density, Graphics, Audio Files, and Video Files.
Communication - Audio, Streaming Audio, Computer-based telephony, Computer based Audio conferencing, Video conferencing, and streaming video.
Multimedia communication supports a range of file formats such as:
Text Files - .txt (Text), .doc (Microsoft word document), .rtf (Rich text format)
Audio Files - .au(audio format), .aif(audio interchange file), .wav(waveform)
Graphic Files - .jpg, .gif(graphic interchange format), .tif(tagged image), .bmp(bitmap),.pict, .pcx
Moving video files: .qt(quick time), .mov, .avi
Animation - .fli, .flc.
There are different modes of Multimedia communications such as person to person and person to system. This communication is bidirectional, as all the entities interact with each other.
Person to Person : Bidirectional communication mode where two ends of the communications is done by peer using multimedia systems.
Examples : Video conference ,Telephone conversations, Multimedia message services , Distance learning
Person to Machine : One end of this communications is a machine which respond to the request for multimedia information or service by a person
Examples : Video conference ,Telephone conversations, Multimedia message services , Distance learning
Multimedia Communications over Internet:
The multimedia communicatio...
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...ow they can relinquish them once the communication is ended.To make a resource reservation the Resource Reservation Protocol communicates with two local decision modules
-Admission Control : Admission control checks whether the node has available resources that can meet the requirements
-Policy Control : Policy control determines whether the user has the permission to reserve the resource.
If the admission control check and the policy control check fails the Resource Reservation Protocol gives an error notification to the process which initiated the request. If both the admission has no error notifications, the RSVP sets packet classifier and packet scheduler parameters .
- Packet classifier determines the Quality of Service class for each packet.
-Packet scheduler check the order of packet transmission to achieve the Quality of Service for multimedia streaming.
In this lab, we used Transmission Control Protocol (TCP) which is a connection oriented protocol, to demonstrate congestion control algorithms. As the name itself describes, these algorithms are used to avoid network congestion. The algorithms were implemented in three different scenarios i.e. No Drop Scenario, Drop_Fast Scenario and Drop_NoFast Scenario.
system” (Elrod & Ryder, 2011) or if the intake officer should take another route. They usually
(2012) suggest that communication is a process that involves a sender, a receiver, a message and a channel. The sender and the receiver of the communication may be the professionals and the channels of communication may be through hand over’s, emails, phones calls, verbal discussion and other relevant communication channel
Joseph STRAUBHAAR and Robert LaROSE (2002). Media Now. Communication Media in the Information Age. 3rd Edition. Belmont, Wadworth/Tompson Learning.
The media can come in many forms. From social media, magazines to Television. Although there are fundamental differences the core purpose of all media is communication. Whether it be to inform, entertain or advertise.
For the DAC model discussed in Section 4.3, an alternative representation of the protection state is a directed graph. Each subject and each object in the protection state is represented by a node (a single node is used for an entity that is both subject and object). A directed line from a subject to an object indicates an access right, and the label on the link defines the access
Communication is defined by six characteristics; relies on multiple channels, passes through perpetual filters, people give communication its meaning, communication has literal meanings and relational implications, communication sends a meaning whether intentional or unintentional, and communication is governed by rules. Communicati...
First I will be going over what is access control and the various models. Access control is the management of admission to resources. It grants authenticated users clearance to specific resources based on the restrictions of the access control model. Access control primarily consist of the authentication of whom ever is trying to gain access to the resources, which confirms the identity of the user trying to log in. There are 4 models of access control: Mandatory Access Control, Role Based Access Control, Discretionary Access Control, and Rule Based Access Control. Let’s look at each of these models and see what they entail.
4. To communicate with other computers, either one at a time (Instant message) or many at once (chat rooms or discussion groups).
Ability to assign disk quotas, which allow limits to be set on how much disk space a user may have.
Access control is described as “the process of regulation of the kind of access (e.g. – read access, write access, no access) an entity has to the system resources” [7]. Access control can therefore prevent and enable parts of the systems to perform certain actions and access specific files and data. Access control lists are used to store the privilege information. Entries are stored in access control lists that specify whether an entity has the right to either access, write, or execute certain sections of a system [8].
Human communication is all around us, from the minute we are born to the second we die, our vast minds and bodies are communicating, we when we don’t realize it we are communicating. Communication is a word that you are going to hear me say a lot this paper. Throughout this course, I have learned that communications vital to our success in our live and work, we are constantly saying things to other and the world. Imagine the world without communications; there is no such thing. We need to communicate to live and to get through everyday life.
Communication is an interdependent process of sending, receiving, and understanding messages. The definition implies that the components of the communication process cannot be examined separately. Rather, the relationship exists between the sender and the receiver, as well as the environment of the communication event, must be viewed as a whole. According to this perspective, if any of the components and circumstances change (that is, the number of individuals involved in the interaction, seating arrangements, or the time of the day) the communication event is altered. Communication is an ongoing process; we never stop sending and receiving messages. As we will discover, communication is a dynamic process, a process that changes from one communication setting to the next. Although it is difficult to predict, the ways of interpreting communication, certain components are always present in the communication process.
The technology of communication has risen by effectively and bounds in the 20th century resulting in many mind-boggling progress in this field. The invention of the computer and later, the internet has revolutionized the role of communication in modern living so much that even a school student of present age feels disoriented if he is made to live in an environment away from the TV and the internet. The possibility of communication in reverse – from the recipient to the sender — is now possible because of the advances in technology.
Communication is the process of exchanging information through a common system of symbols. It takes a Wide Variety of forms – from two people having face to face conversation to hand signals to massage sent over the world. Common forms of communication include speaking, writing, gesturing and broadcasting. Communication means to inform, tell, show or spread information. When a person communicates, he/she