September 2011 The Disadvantages of Social Network Sites It is true that social network sites are growing at an alarming rate and that there are many advantages and disadvantages in using social network sites. If one understands these advantages and attempts to avoid the disadvantages‚ then one can use these sites to improve their knowledge‚ increase personal relationships with Family and friends‚ and create a functioning secure social network on-line. Because social network sites play such an important
Premium Facebook Social network service
STUDENT’S MANUAL TO ACCOMPANY OPERATING SYSTEM CONCEPTS SEVENTH EDITION ABRAHAM SILBERSCHATZ Yale University PETER BAER GALVIN Corporate Technologies GREG GAGNE Westminster College Preface This volume is a student’s manual for the Seventh Edition of Operating System Concepts‚ by Abraham Silberschatz‚ Peter Baer Galvin‚ and Greg Gagne. It consists of answers to the exercises in the parent text. Although we have tried to produce a student’s manual that will aid all of the users
Premium Operating system
A mobile operating system (mobile OS) is an OS built exclusively for a mobile device‚ such as a smartphone‚ personal digital assistant (PDA)‚ tablet or other embedded mobile OS. Popular mobile operating systems are Android‚ iOS and Windows Phone. A mobile OS is responsible for identifying and defining mobile device features and functions‚ including keypads‚ application synchronization‚ email and text messaging. Android OS is owned by Google and powered by the Linux kernel‚ it debuted in 2007.
Premium Smartphone Windows Mobile Mobile operating system
Advait 1. If following equations? A) b) c) d) Aptitude Test TCS-1 Awareness Development Initiative is a root of which of the ‚ where b is a rational number‚ then 2. From the top of a tower of height 180 m the angles of depression of two objects on either sides of the tower are 30° and 45°. Find the distance between the two objects. a) b) c) d) 3. A amount of 20‚900 is taken as loan at 9% p.a.‚ compound interest. If it is to be repaid in 2 equal annual instalments‚ what is the value of
Premium Integer Real number Decimal
1. AIM: To write a C program to simulate the shortest job first algorithm with preemption. DESCRIPTION: For implementing SJF algorithm with preemption‚ we consider the arrival times of each process‚ the burst times of all the previously arrived processes. After the arrival of all the processes into the ready queue‚ the average waiting time and turn around time can be calculated by using the above algorithm. ALGORITHM: 1) start 2) read the no of processes to n 3) initialize i to 0 4) if
Premium Scheduling Programming language Computer program
1. In a multiprogramming and time sharing environment‚ several users share the system simultaneously. This situation can results in various security problems. a. What are the two such problems? Ans: The two problems in Multiprogramming and time sharing environment are Stealing or copying a user’s files; Writing over another program’s (belonging to another user or to the OS) area in memory; Using system resources (CPU‚ disk space) without proper accounting; Causing the printer to mix output by
Premium Peer-to-peer Input/output Operating system
Operating System Comparisons PRG/355 February 4‚ 2013 Operating System Comparisons Table of Contents Introduction 3 Memory Management 3 Process Management 6 File Management 7 Security 8 Conclusion 9 References 11 Introduction An operating system (OS) is software that manages the hardware and software resources of a computer system. Basically an OS is a set of libraries or functions which programs may use to perform specific tasks relating to interfacing
Premium Operating system File system
|Entry Mode |Advantages |Disadvantages | |Joint Venture |Gain immediate access to local partner’s knowledge‚ |Coordination between partners may not be smooth | | |expertise‚ networks‚ and market share |Political risk exposure is high | | |Development
Premium Economics International trade Brand
overview of Unix operating system. It starts by presenting a brief history of the early development of Unix. It concentrates on main aspects of Unix operating system. Key concepts covered are interactive multi-user operating systems‚ the design objectives of Unix‚ file-store organization‚ text processing and programming‚ the role of C programming language with regard to portability and reliable system software‚ process control (signals and fork)‚ error logging and recovery from system failures‚ modifiability
Premium Unix
Types of Operating Systems Within the broad family of operating systems‚ there are generally four types‚ categorized based on the types of computers they control and the sort of applications they support. The categories are: * Real-time operating system (RTOS) - Real-time operating systems are used to control machinery‚ scientific instruments and industrial systems. An RTOS typically has very little user-interface capability‚ and no end-user utilities‚ since the system will be a "sealed box"
Premium Operating system Unix