Podcast
Questions and Answers
What is the main characteristic of a single processor system?
What is the main characteristic of a single processor system?
- Multiple main CPUs
- General-purpose instruction set (correct)
- No user processes
- Special-purpose processors only
Which type of system is also known as parallel systems?
Which type of system is also known as parallel systems?
- Tightly-coupled systems
- Asymmetric Multiprocessing
- Multiprocessor Systems (correct)
- Single Processor Systems
What are the advantages of Multiprocessor Systems?
What are the advantages of Multiprocessor Systems?
- Decreased throughput
- Decreased reliability
- Economy of scope
- Increased throughput (correct)
In which type of multiprocessing does each processor perform all tasks?
In which type of multiprocessing does each processor perform all tasks?
What is the key difference between Symmetric and Asymmetric Multiprocessing?
What is the key difference between Symmetric and Asymmetric Multiprocessing?
Which system allows only the master processor to run tasks in the operating system?
Which system allows only the master processor to run tasks in the operating system?
What is the main difference between asymmetric clustering and symmetric clustering?
What is the main difference between asymmetric clustering and symmetric clustering?
Why is multiprogramming necessary in batch systems?
Why is multiprogramming necessary in batch systems?
What is the purpose of a distributed lock manager (DLM) in clustered systems?
What is the purpose of a distributed lock manager (DLM) in clustered systems?
How does the operating system handle a situation where processes don't fit in memory?
How does the operating system handle a situation where processes don't fit in memory?
What is the purpose of dual-mode operation in an operating system?
What is the purpose of dual-mode operation in an operating system?
Why are some instructions designated as privileged and only executable in kernel mode?
Why are some instructions designated as privileged and only executable in kernel mode?
What is the role of an operating system as a resource allocator?
What is the role of an operating system as a resource allocator?
In terms of computer-system architecture, what does an operating system control and coordinate?
In terms of computer-system architecture, what does an operating system control and coordinate?
What is the primary goal of an operating system in managing resources?
What is the primary goal of an operating system in managing resources?
How does the number of general-purpose processors used categorize computer-system architecture?
How does the number of general-purpose processors used categorize computer-system architecture?
Which component of a computer system defines the ways in which system resources are used to solve computing problems for users?
Which component of a computer system defines the ways in which system resources are used to solve computing problems for users?
What is the main responsibility of an operating system as a control program?
What is the main responsibility of an operating system as a control program?
Flashcards
Single Processor System
Single Processor System
A system that uses a single processor to execute all tasks.
Multiprocessor System
Multiprocessor System
A system that uses multiple processors to execute tasks.
Asymmetric Multiprocessing
Asymmetric Multiprocessing
One processor controls the others, but all processors execute all tasks.
Symmetric Multiprocessing
Symmetric Multiprocessing
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Cluster System
Cluster System
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Asymmetric Clustering
Asymmetric Clustering
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Symmetric Clustering
Symmetric Clustering
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Multiprogramming
Multiprogramming
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Batch System
Batch System
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Distributed Lock Manager (DLM)
Distributed Lock Manager (DLM)
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Memory Management
Memory Management
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Dual-Mode Operation
Dual-Mode Operation
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Privileged Instructions
Privileged Instructions
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Resource Allocator (OS Role)
Resource Allocator (OS Role)
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Operating System Role
Operating System Role
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Resource Management Goal (OS)
Resource Management Goal (OS)
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Computer System Architecture
Computer System Architecture
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OS in System Architecture
OS in System Architecture
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OS as Control Program
OS as Control Program
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Study Notes
Characteristics of Processor Systems
- The main characteristic of a single processor system is that it uses one processor to execute all tasks.
Types of Multiprocessing Systems
- Parallel systems are also known as multiprocessor systems.
- In asymmetric multiprocessing, each processor performs all tasks, but one processor controls the others.
- In symmetric multiprocessing, all processors are equal and can perform any task.
Advantages of Multiprocessor Systems
- Multiprocessor systems have several advantages, including increased processing power, improved system reliability, and enhanced system availability.
Clustering Systems
- Asymmetric clustering is a system where one processor (the master) controls the others and is responsible for running tasks in the operating system.
- Symmetric clustering is a system where all processors are equal and can perform any task.
Multiprogramming and Batch Systems
- Multiprogramming is necessary in batch systems because it allows multiple programs to run simultaneously, improving system efficiency.
Distributed Lock Manager (DLM)
- The purpose of a DLM in clustered systems is to manage and coordinate access to shared resources.
Memory Management
- When processes don't fit in memory, the operating system uses techniques such as paging and segmentation to manage memory.
Dual-Mode Operation
- The purpose of dual-mode operation in an operating system is to provide a secure and isolated environment for executing privileged instructions.
Privileged Instructions
- Some instructions are designated as privileged and can only be executed in kernel mode because they require direct access to system resources.
Operating System Roles
- The role of an operating system as a resource allocator is to manage and allocate system resources such as CPU, memory, and I/O devices.
- The operating system controls and coordinates the use of system resources, such as CPU, memory, and I/O devices, to solve computing problems for users.
- The primary goal of an operating system in managing resources is to provide an efficient and fair allocation of resources to competing programs.
Computer-System Architecture
- The number of general-purpose processors used categorizes computer-system architecture into single-processor, multiprocessor, and clustered systems.
- The computer system architecture component that defines the ways in which system resources are used to solve computing problems for users is the operating system.
- The main responsibility of an operating system as a control program is to manage and coordinate the use of system resources to solve computing problems for users.
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Description
Explore the concept of clustered systems in computer-system architecture, where multiple systems work together and share storage. Learn about asymmetric clustering with a hot-standby mode and symmetric clustering with multiple nodes running applications. Discover how some clusters are used for high-performance computing.
