This document discusses mobile systems engineering and provides an overview of mobile devices, operating systems, and applications. It describes the evolution of computing from early computers to smartphones and defines key aspects of mobile systems including their portability, battery power, wireless connectivity, and associated constraints and characteristics compared to desktop and embedded systems. Examples of mobile applications and system architectures are provided. Popular mobile platforms like Android, iOS, Blackberry and Windows Mobile are compared in terms of their features, programming languages, and development tools.
Analyzing the Difference of Cluster, Grid, Utility & Cloud ComputingIOSRjournaljce
: Virtualization and cloud computing is creating a fundamental change in computer architecture,
software and tools development, in the way we store, distribute and consume information. In the recent era of
autonomic computing it comes the importance and need of basic concepts of having and sharing various
hardware and software and other resources & applications that can manage themself with high level of human
guidance. Virtualization or Autonomic computing is not a new to the world, but it developed rapidly with Cloud
computing. In this paper there give an overview of various types of computing. There will be discussion on
Cluster, Grid computing, Utility & Cloud Computing. Analysis architecture, differences between them,
characteristics , its working, advantages and disadvantages
Introduction to Cloud Computing, Roots of Cloud Computing ,Desired Features of Cloud Computing ,Challenges and Risks ,Benefits and Disadvantages of Cloud Computing
Analyzing the Difference of Cluster, Grid, Utility & Cloud ComputingIOSRjournaljce
: Virtualization and cloud computing is creating a fundamental change in computer architecture,
software and tools development, in the way we store, distribute and consume information. In the recent era of
autonomic computing it comes the importance and need of basic concepts of having and sharing various
hardware and software and other resources & applications that can manage themself with high level of human
guidance. Virtualization or Autonomic computing is not a new to the world, but it developed rapidly with Cloud
computing. In this paper there give an overview of various types of computing. There will be discussion on
Cluster, Grid computing, Utility & Cloud Computing. Analysis architecture, differences between them,
characteristics , its working, advantages and disadvantages
Introduction to Cloud Computing, Roots of Cloud Computing ,Desired Features of Cloud Computing ,Challenges and Risks ,Benefits and Disadvantages of Cloud Computing
Distributed computing deals with hardware and software systems containing more than one processing element or storage element, concurrent processes, or multiple programs, running under a loosely or tightly controlled regime. In distributed computing a program is split up into parts that run simultaneously on multiple computers communicating over a network. Distributed computing is a form of parallel computing, but parallel computing is most commonly used to describe program parts running simultaneously on multiple processors in the same computer. Both types of processing require dividing a program into parts that can run simultaneously, but distributed programs often must deal with heterogeneous environments, network links of varying latencies, and unpredictable failures in the network or the computers.
Cloud computing Definition, Types of cloud, Cloud services: Benefits and challenges of cloud computing, Evolution of Cloud Computing, Applications cloud computing, Business models around Cloud, Major Players in Cloud Computing, Issues in Cloud - Eucalyptus - Nimbus - Open Nebula, CloudSim.
Distributed computing deals with hardware and software systems containing more than one processing element or storage element, concurrent processes, or multiple programs, running under a loosely or tightly controlled regime. In distributed computing a program is split up into parts that run simultaneously on multiple computers communicating over a network. Distributed computing is a form of parallel computing, but parallel computing is most commonly used to describe program parts running simultaneously on multiple processors in the same computer. Both types of processing require dividing a program into parts that can run simultaneously, but distributed programs often must deal with heterogeneous environments, network links of varying latencies, and unpredictable failures in the network or the computers.
Cloud computing Definition, Types of cloud, Cloud services: Benefits and challenges of cloud computing, Evolution of Cloud Computing, Applications cloud computing, Business models around Cloud, Major Players in Cloud Computing, Issues in Cloud - Eucalyptus - Nimbus - Open Nebula, CloudSim.
Unit - I
Mobile Computing – Mobile Computing Vs wireless Networking – Mobile Computing Applications – Characteristics of Mobile computing – Structure of Mobile Computing Application. MAC Protocols – Wireless MAC Issues – Fixed Assignment Schemes – Random Assignment Schemes – Reservation Based Schemes.
A Posteriori Perusal of Mobile ComputingEditor IJCATR
The breakthrough in wireless networking has prompted a new concept of computing, called mobile computing in which users tote
portable
devices have
access to a shared infrastructure, independent of their physical location. Mobile computing is becoming increasingly vital du
e to the
increase in the number of portable computers and the aspiration to have continuous network connectivity to the Internet i
rrespective of the physical
location of the node.
Mobile computing systems
are computing systems that may be readily moved physically and whose computing ability may be
used while they are being moved. Mobile computing has rapidly become a vital new examp
le in today's real world of networked computing systems. It
includes software, hardware and mobile communication. Ranging from wireless laptops to cellular phones and WiFi/Bluetooth
-
enabled PDA‟s to
wireless sensor networks; mobile computing has become ub
iquitous in its influence on our quotidian lives. In this paper various types of mobile
devices are talking and they are inquiring into in details and existing operation systems that are most famed for mentioned d
evices are talking. Another
aim of this pa
per is to point out some of the characteristics, applications, limitations, and issues of mobile computing
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
How to Make a Field invisible in Odoo 17Celine George
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This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
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Biological screening of herbal drugs: Introduction and Need for
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2. Topics
Introduction to Mobile Systems
Mobile Systems vs Wireless Systems vs
Embedded Systems
Mobile Applications
Syllabus, Evaluation and Class Policies
9. What is different about
Mobile Computing??
Is it same as Embedded computing?
Is it a special case of Embedded computing?
Is it just Wireless communications?
10. Mobile Systems in
perspective
• Mobile Systems = Wireless communication + Computing
• Wireless Communication
- Is a distinguishing aspect of mobile systems – without wireless, mobile systems
can’t communicate (voice or data). Imagine a cell phone without wireless.
- Wireless communication is used between fixed devices also that need not
necessarily be mobile. For example, home networking where a TV (non mobile
device), Audio system (non- mobile), laptop (mobile), Desktop (non mobile),
Washing machine etc may be networked.
11. Embedded Systems
- Specialized for the application it caters to as against being general purpose, Often resour
(CPU power, memory etc) constrained, characterized by special hardware and
associated system software
Need not be mobile and hence may have wired connectivity (eg printer/scanner using
a USB)
12. Mobile Systems in
perspective
Applications
1. Mobile centric applications – those specialized for mobile scenarios – for
example, location dependent services, cell phone telephony based services
2.Applications that may be classified as personal and micro applications – for
example, applications that assist in personal finance management, personal
diary etc
3. Application architectures specialized for mobile – mobile application
design patterns. For example, consider the intersection of cloud and a mobile
device where the cloud serves as a backup medium to store data from the
mobile device. Another example is that complex computations can be
offloaded to cloud, while the rich multimedia capabilities of Smartphones/
Tablets can be leveraged to provide a rich user experience to the client
applications
13. Characteristics of a Mobile
System
Portable: Mobile systems can be carried (In this discussion we
consider the devices that are carried by people and exclude
devices such as Robots or missiles that can move without
needing to carried by humans)
- Weight, size, form factor, heat dissipation
- Resource constraints
Battery Powered : (This discussion is focused on devices that
are portable and have a battery that is portable as against car
batteries that are huge)
- System software to control energy optimization
- Processor support for energy optimization
- Application architecture driven optimization
- Optimization in communication systems
14. Characteristics of a Mobile
System
Wireless connected
- Different protocols result in different speeds (hence
different power
requirements), different error rates or reliability and
routing
requirements
Limitations:
Bandwidth: Insufficient bandwidth and hence mobile
internet access is generally slower than wired access
Security: Dependency on public networks
Power consumption: Dependent on battery
Transmission interferences: Terrain,Weather..
15. Why Mobile Applications?
Most computers will be portable
Need to access network – need wireless
Many people will be mobile
Consider air travellers inside an aircraft. This is an example
of a mobile network moving at high speed above the ground
– wireless communication is the only mode of data
communication.
User Mobility: Refers to a user who has access to same or
similar telecommunication services at different places –
services follow the user
Device Portability: The communication device moves
(with or without the user). Many mechanisms in the network
inside and outside the device need to make sure that the
communication is still possible while on the move.
The term wireless is used with regard to the devices. This
only refers to a way of accessing the network or other
communication partners – transmission of electromagnetic
16. Communication Patterns
Wireless networking and mobile computing
are related but not identical
Fixed and Wired
Eg Desktop
Mobile and Wired
Eg, laptops carried from one room to
another and connected to wired network
Fixed and Wireless
Eg, printers connected through wireless,
Washing machines that can be
connected through
wireless
Mobile and Wireless
17. Applications
Vehicles
Nomadic user
Smart mobile phone
Invisible computing
Wearable computing
Intelligent house or office
Meeting room/conference
Taxi/Police/Fire squad fleet
Service worker
Lonely wolf
Disaster relief and Disaster alarm
Games
20. Application Architecture
Work within constraints
- Design Patterns that handle the constraints effectively
- Constraints in CPU speed, memory, persistent storage,
network speed,
network reliability, power consumption, screen size,
input methods
- Push versus pull to handle transmission power, Use the
wake_lock
effectively, move heavy computation to the server, use
the local database effectively to handle network unreliability,
backup of device data on server, integration of cloud and device,
content adaptation,
- Perform the right trade offs in building applications
Take advantage of devices
- Devices: Camera, GPS, Compos, Accelerometer,
Audio/Speaker/microphone
- New gestures as input/output (eg: multitouch, accelerometer)
- New class of applications (mobile video conferencing,
connectivity to social
21. System Architecture
System
Handle constraints: Bionic library (as against a complete libc
– make a
measurement of bionic size versus full libc size), utilities
and tools that are subset of Linux, DVM to effectively use
memory/power, Power management, Network management to
take care of reliability and low bandwidth aspects
Support new devices: Consistent model for accessing
devices, system
guarantees on availability of devices, Interfaces between
devices, libraries and applications, device specific events (eg,
camera_ready)
Support different wireless protocols
Support detection of mobility and changes to the
environment
22. Mobile Operating System
...also known as MobileOS, Handheld OS or
Mobile Platform, is the operating system
that controls a mobile device.
Why do we need a mobile OS?
How do current mobile OSs compare?
23. Demands from a Mobile OS
Short start-up time
Quick response to user actions
Portable
Power efficient
Extensible
24. Characteristics of a Mobile
OS
Multitasking system – ability to run multiple
applications simultaneously, respond to
asynchronous events
Memory protection – secure environment
for running applications without
compromising user privacy and data
security
Power conscious
Extensible – can run third party
applications
Support for wide variety of communication