scholarly journals Resource management and security issues in mobile phone operating systems: A comparative analysis

2017 ◽  
Author(s):  
Khalid Mahmood Awan ◽  
Muhammad Waqar ◽  
Muhammad Faseeh ◽  
Farman Ullah ◽  
Muhammad Qaiser Saleem
Keyword(s):  
Operating System ◽  
Comparative Analysis ◽  
Mobile Phone ◽  
Mobile Phones ◽  
Operating Systems ◽  
Memory Management ◽  
Human Life ◽  
Main Memory ◽  
Handheld Device ◽  
Memory Cache

Nowadays Mobile phones are becoming more popular in our daily lives. Mobile technology has a great effect on human life. Our daily tasks are dependent on mobile devices. Memory Management (MM), Security and Performance plays an important role in every handheld device specially in mobile phones, which are very much dependent on their operating system (OS). These embedded operating systems are on the driving seat when we talk about efficient and useful memory management and secure handling. Three popular OS in mobile phones are Android, Windows and iOS (iPhone OS). Each OS has its own way of managing the memory and provide it to certain number of applications. Android is an open software available for the people to modify as per their needs. But Windows and iOS operating systems didn’t allow their software as open source. Researchers have done a large amount of work using different mechanisms and decision makings to develop new ways to manage the memory of these OS’s. This work shows a comparative analysis of different memory management and security related techniques in above three operating systems. In this paper, we present the analysis of memory management and security in mobile phone operating systems with respect to apps, main memory, cache memory and virtual memory. Also, we compare the overall performance of these OS’s in terms of MM, security concerns. This study will help in finding better operating system in terms of efficient memory management and security.

scholarly journals Resource management and security issues in mobile phone operating systems: A comparative analysis

2017 ◽  
Author(s):  
Khalid Mahmood Awan ◽  
Muhammad Waqar ◽  
Muhammad Faseeh ◽  
Farman Ullah ◽  
Muhammad Qaiser Saleem
Keyword(s):  
Operating System ◽  
Comparative Analysis ◽  
Mobile Phone ◽  
Mobile Phones ◽  
Operating Systems ◽  
Memory Management ◽  
Human Life ◽  
Main Memory ◽  
Handheld Device ◽  
Memory Cache

Nowadays Mobile phones are becoming more popular in our daily lives. Mobile technology has a great effect on human life. Our daily tasks are dependent on mobile devices. Memory Management (MM), Security and Performance plays an important role in every handheld device specially in mobile phones, which are very much dependent on their operating system (OS). These embedded operating systems are on the driving seat when we talk about efficient and useful memory management and secure handling. Three popular OS in mobile phones are Android, Windows and iOS (iPhone OS). Each OS has its own way of managing the memory and provide it to certain number of applications. Android is an open software available for the people to modify as per their needs. But Windows and iOS operating systems didn’t allow their software as open source. Researchers have done a large amount of work using different mechanisms and decision makings to develop new ways to manage the memory of these OS’s. This work shows a comparative analysis of different memory management and security related techniques in above three operating systems. In this paper, we present the analysis of memory management and security in mobile phone operating systems with respect to apps, main memory, cache memory and virtual memory. Also, we compare the overall performance of these OS’s in terms of MM, security concerns. This study will help in finding better operating system in terms of efficient memory management and security.

scholarly journals Address Space Layout Randomization Comparative Analysis on Windows 10 and Ubuntu 18.04 LTS

2021 ◽  
Vol 7 (1) ◽  
pp. 26
Author(s):  
Raquel Vázquez Díaz ◽  
Martiño Rivera-Dourado ◽  
Rubén Pérez-Jove ◽  
Pilar Vila Avendaño ◽  
José M. Vázquez-Naya
Keyword(s):  
Operating System ◽  
Comparative Analysis ◽  
Operating Systems ◽  
Memory Management ◽  
Address Space ◽  
Memory Protection ◽  
Partial Correlations ◽  
Feature Memory ◽  
Space Layout ◽  
Address Space Layout Randomization

Memory management is one of the main tasks of an Operating System, where the data of each process running in the system is kept. In this context, there exist several types of attacks that exploit memory-related vulnerabilities, forcing Operating Systems to feature memory protection techniques that make difficult to exploit them. One of these techniques is ASLR, whose function is to introduce randomness into the virtual address space of a process. The goal of this work was to measure, analyze and compare the behavior of ASLR on the 64-bit versions of Windows 10 and Ubuntu 18.04 LTS. The results have shown that the implementation of ASLR has improved significantly on these two Operating Systems compared to previous versions. However, there are aspects, such as partial correlations or a frequency distribution that is not always uniform, so it can still be improved.

Linux Based Mobile Operating Systems

2011 ◽  
pp. 35-50
Author(s):  
Lee Chao
Keyword(s):  
Operating System ◽  
User Interface ◽  
Mobile Learning ◽  
Operating Systems ◽  
Memory Management ◽  
Process Management ◽  
Management Process ◽  
Interface Management ◽  
Device Management ◽  
History Of

In today’s mobile computing, Linux plays a significant role. The Linux kernel has been adopted by a variety of mobile operating systems to handle tasks such as device management, memory management, process management, networking, power management, application interface management, and user interface management. This chapter introduces Linux based mobile operating systems installed on various mobile devices. It first gives a brief introduction of the history of mobile Linux. Then, the chapter introduces the mobile Linux features that can be used to meet the mobile learning requirements. The last part of the chapter presents strategies on selecting a Linux based operating system for a particular mobile learning project.

scholarly journals The Utilization of Mobile Phones with medical related apps among foreign medical students in WMU, China (Preprint)

2018 ◽  
Author(s):  
Laite Chen ◽  
Chen-Yang Jiang
Keyword(s):  
Operating System ◽  
Medical Students ◽  
Mobile Phone ◽  
Mobile Phones ◽  
Medical Practice ◽  
Daily Basis ◽  
Smart Phones ◽  
Medical Apps ◽  
Medical University

BACKGROUND Smart phones containing medical related apps have been applied to medical practice and proved to be helpful by previous studies. However, no attention has been paid to the use of mobile phone and medical related apps among foreign medical students(FMSs) in China. OBJECTIVE The objective of the study was to investigate the utilization of mobile phones with medical apps among FMSs in WMU. METHODS A survey of FMSs was conducted in Wenzhou Medical University (WMU). Data from questionnaire include the major obstacles FMSs face in China; the acceptance and preference of medical related apps in FMSs; the patterns of medical related app usage within FMSs. RESULTS This study included ninety-three FMSs, all of whom owned at least one mobile phone. Most owners had more than one medical related app. No difference on gender or operating system was found in utilization of apps. 55% of FMSs reported using medical related apps on a daily basis, among which, 65% of them spent more than 20 minutes on medical related apps everyday. CONCLUSIONS Mobile phones were highly applied among FMSs in WMU. With more effort in app designing, smart phones could be a possible solution for necessary aid in learning medicine overseas.

scholarly journals Disease Prediction Application based on Symptoms

2019 ◽  
pp. 641-646
Author(s):  
Ramandeep Singh Sethi ◽  
Aniket Thumar ◽  
Vaibhav Jain ◽  
Sachin Chavan
Keyword(s):  
Mobile Phone ◽  
Mobile Phones ◽  
Mobile Technology ◽  
Mobile Applications ◽  
Human Life ◽  
Medical Practitioner ◽  
Disease Prediction ◽  
Exponential Rate ◽  
Mobile Phone Applications ◽  
Digital Healthcare

The usage of mobile phones in today's world is more than ever. Mobile phones are everywhere and the mobile technology is growing at an exponential rate. The capabilities of a mobile phone have made it provide us services that make human life better. One such service that mobile phones can offer us is digital healthcare. Also, it is recognized that mobile phone applications that provide healthcare solutions are trending. Such applications provide a convenient and portable healthcare solutions to all the individuals. Such applications provide a rich experience to a user and in this way, the users will come to know more about their health and body. Digital healthcare mobile applications are capable of diagnosing a disease that a patient is suffering from using his/her symptoms. This information can be used further by a medical practitioner for later on consultation.

Enhancing the Efficiency of Memory Management in a Super-Paging Environment by AMSQM

2010 ◽  
pp. 276-293
Author(s):  
Moshe Itshak ◽  
Yair Wiseman
Keyword(s):  
Operating System ◽  
Operating Systems ◽  
Memory Management ◽  
New Technique ◽  
Research Papers ◽  
Page Size ◽  
Replacement Decisions ◽  
Replacement Algorithms

The concept of Super-Paging has been wandering around for more than a decade. Super-Pages are supported by some operating systems. In addition, there are some interesting research papers that show interesting ideas how to intelligently integrate Super-Pages into modern operating systems; however, the page replacement algorithms used by the contemporary operating system even now use the old Clock algorithm which does not prioritize small or large pages based on their size. In this chapter an algorithm for page replacement in a Super-Page environment is presented. The new technique for page replacement decisions is based on the page size and other parameters; hence is appropriate for a Super-Paging environment.

Fetching Address Book Info of iPhone OS

2011 ◽  
Vol 204-210 ◽  
pp. 1266-1269 ◽  
Author(s):  
Zhi Feng Luo ◽  
Chao Sun ◽  
Shun Xiang Wu
Keyword(s):  
Operating System ◽  
Mobile Phones ◽  
Operating Systems ◽  
Mobile Technology ◽  
Mobile Communications ◽  
Rapid Development ◽  
Smart Phone ◽  
Output File ◽  
New Era ◽  
Address Book

With the rapid development of mobile technology, the mobile phones has gradually become an indispensable part in everybody’s life, and it is replacing the computer’s position step by step. The iPhone is a smart phone made of Apple Company, which opens a new era of software for mobile devices. At the same time, iOS(iPhone’s operating system) has become one of most competitive mobile communications operating systems. The Apple’s protection for security makes the iPhone owners hardly control their phone through the root (highest authority). It is so difficult to manage the information effetely with iPhone, such as contacts’ information or SMS. The paper introduced two approaches to get the contacts’ information in iPhone and restore them with vCard. At last, we managed the output file on MAC.

scholarly journals SMS Text Compression through IDBE (Intelligent Dictionary based Encoding) for Effective Mobile Storage Utilization

2014 ◽  
pp. 86-90
Author(s):  
Parul Bhanarkar ◽  
Nikhil Jha
Keyword(s):  
Operating System ◽  
Mobile Phones ◽  
Operating Systems ◽  
Compression Ratio ◽  
Text Compression ◽  
Storage Space ◽  
Short Forms

Effective storage utilization is the key concept for better working of any operating system. Even operating systems used for mobile phones are not an exception for this fact. This paper proposes a technique for maximizing the utilization of the storage space present in mobile phones. Thus it is important to utilize the space occupied by SMS files in phone’s memory, which take maximum space. The objective involved is designing a semantic dictionary based on Intelligent Dictionary Based Encoding (IDBE) which provides a high text compression ratio to utilize the space in phone’s memory. When SMS file will be received, English words present in the text will be replaced by the respective short words in the designed semantic dictionary. Thus replacing English words by the respective short forms reduces the space occupied by the SMS file. The paper describes the IDBE Compression Techniques for SMS Text Compression.

scholarly journals Simplified Measurement on the Impact of Radiation by Mobiles

2019 ◽  
Vol 9 (2S3) ◽  
pp. 265-268
Keyword(s):  
Electromagnetic Radiation ◽  
Mobile Phone ◽  
Mobile Phones ◽  
Human Tissue ◽  
Human Life ◽  
Human Head ◽  
Exposure Level ◽  
Specific Absorption ◽  
The Impact ◽  
Electromagnetic Radiations

in fast growing world Mobile phone has become part of the human life. Specific Absorption is a measurement for the amount of Electromagnetic energy that has been absorbed by human tissue ,. Electromagnetic Radiation associated with Mobile Phones is always as an issue that has to be addressed for human safety, Particularly for children. More focus has been paid to induced SAR in the human head when exposed to EM Waves emitted from mobile Phone Antenna, but while using mobile phone the user gets exposed to a dangerous electromagnetic Radiations. ICNIRP Prescribed some guidelines for EM Exposure Level for Public. The Present paper is discuss the SAR Values of different Mobile Phones, Measured How much People are Aware of SAR Values are given as a survey. The study is compromised individuals that visited in the survey site .The awareness is assessed using structured questions and it was recorded to measure the awareness.

scholarly journals Three Years Later: A Study of MAC Address Randomization In Mobile Devices And When It Succeeds

2021 ◽  
Vol 2021 (3) ◽  
pp. 164-181
Author(s):  
Ellis Fenske ◽  
Dane Brown ◽  
Jeremy Martin ◽  
Travis Mayberry ◽  
Peter Ryan ◽  
...  
Keyword(s):  
Operating System ◽  
Mobile Phones ◽  
Operating Systems ◽  
Mobile Device ◽  
Cross Sectional Study ◽  
Sectional Study ◽  
User Privacy ◽  
Cross Sectional ◽  
In The Wild ◽  
High Degree

Abstract Mobile device manufacturers and operating system developers increasingly deploy MAC address randomization to protect user privacy and prevent adversaries from tracking persistent hardware identifiers. Early MAC address randomization implementations suffered from logic bugs and information leakages that defeated the privacy benefits realized by using temporary, random addresses, allowing devices and users to be tracked in the wild. Recent work either assumes these implementation flaws continue to exist in modern MAC address randomization implementations, or considers only dated software or small numbers of devices. In this work, we revisit MAC address randomization by performing a cross-sectional study of 160 models of mobile phones, including modern devices released subsequent to previous studies. We tested each of these phones in a lab setting to determine whether it uses randomization, under what conditions it randomizes its MAC address, and whether it mitigates known tracking vulnerabilities. Our results show that, although very new phones with updated operating systems generally provide a high degree of privacy to their users, there are still many phones in wide use today that do not effectively prevent tracking.

Sign in / Sign up

Export Citation Format

Share Document