15 Questions
What is the main limitation of tightly coupled systems in terms of processor deployment?
The bandwidth of the shared memory
What is a characteristic of distributed computing systems that distinguishes them from tightly coupled systems?
They are more freely expandable and can have an almost unlimited number of processors
How do processors in a distributed computing system communicate with each other?
By message passing over the communication network
What term is used to refer to a processor and its resources in a distributed computing system?
Node or site or machine
What is the distinction between a processor's own resources and those of other processors in a distributed computing system?
Local resources are those of the processor itself, while remote resources are those of other processors
What is the primary difference between tightly coupled and loosely coupled systems?
Memory sharing; tightly coupled systems share a single system-wide primary memory, while loosely coupled systems do not share memory and each processor has its own local memory
What factors have contributed to the development of distributed computing systems?
Advancements in microelectronic technology and communication technology
How do tightly coupled systems facilitate communication between processors?
Through shared memory
What is the geographical limitation of tightly coupled systems compared to distributed computing systems?
Tightly coupled systems are limited to a smaller geographical area, while distributed computing systems can cover a wider geographical area
What term is used to describe computer architectures consisting of interconnected, multiple processors?
Distributed computing systems or parallel processing systems
What is the primary advantage of distributed computing systems in terms of scalability?
They can have an almost unlimited number of processors.
What enables communication between nodes in a distributed computing system?
A communication network
What is the key difference between a processor's local resources and those of other processors in a distributed system?
Local resources are owned by the processor, while remote resources are owned by other processors.
What is the term used to describe the collection of interconnected processors and their resources in a distributed computing system?
A node or site or machine
What is the primary method of interaction between processors in a distributed computing system?
Message passing
Study Notes
Advancements in Technology
- Over the past two decades, there have been significant advancements in microelectronic technology, resulting in fast and inexpensive processors.
- Similarly, communication technology has improved, leading to cost-effective and highly efficient computer networks.
Distributed Computing System
- The combination of these advancements has changed the price-performance ratio, favoring the use of interconnected, multiple processors over a single, high-speed processor.
- A distributed computing system is a collection of processors connected by a communication network, where each processor has its own local memory and peripherals.
- Communication between processors takes place by message passing over the communication network.
- Processors and their resources are referred to as a node, site, or machine of the distributed computing system.
Types of Computer Architectures
- Tightly coupled systems: processors share a single system-wide primary memory (address space), and communication occurs through the shared memory.
- Loosely coupled systems: processors do not share memory, and each has its own local memory; communication occurs through message passing over the network.
Characteristics of Distributed Computing Systems
- Processors can be located far from each other, covering a wider geographical area.
- The number of processors can be expanded almost unlimitedly, unlike tightly coupled systems.
- Each processor has its own local resources, while others are remote.
Advancements in Technology
- Over the past two decades, there have been significant advancements in microelectronic technology, resulting in fast and inexpensive processors.
- Similarly, communication technology has improved, leading to cost-effective and highly efficient computer networks.
Distributed Computing System
- The combination of these advancements has changed the price-performance ratio, favoring the use of interconnected, multiple processors over a single, high-speed processor.
- A distributed computing system is a collection of processors connected by a communication network, where each processor has its own local memory and peripherals.
- Communication between processors takes place by message passing over the communication network.
- Processors and their resources are referred to as a node, site, or machine of the distributed computing system.
Types of Computer Architectures
- Tightly coupled systems: processors share a single system-wide primary memory (address space), and communication occurs through the shared memory.
- Loosely coupled systems: processors do not share memory, and each has its own local memory; communication occurs through message passing over the network.
Characteristics of Distributed Computing Systems
- Processors can be located far from each other, covering a wider geographical area.
- The number of processors can be expanded almost unlimitedly, unlike tightly coupled systems.
- Each processor has its own local resources, while others are remote.
Learn about distributed computing systems, their evolution, and the benefits of interconnected processors. Explore how advancements in microelectronic technology and communication technology have led to the development of efficient computer networks.
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