5 Questions
Match the following characteristics with tightly coupled systems or loosely coupled systems:
Distributed memory, every processor has its own memory module = Tightly coupled system Efficient when minimum interactions between tasks running on different processors = Tightly coupled system Shared memory = Loosely coupled system Connected through networks (PMIN, IOPIN, ISIN) = Loosely coupled system
Match the following features with tightly coupled systems or loosely coupled systems:
Message transfer system = Tightly coupled system IOPIN helps connection between them = Loosely coupled system More expensive = Loosely coupled system Less expensive = Tightly coupled system
Match the following benefits with tightly coupled systems or loosely coupled systems:
Efficient when used in real-time processing = Loosely coupled system Efficient when minimum memory conflicts = Tightly coupled system High data rate = Loosely coupled system Low data rate = Tightly coupled system
Match the following connection types with tightly coupled systems or loosely coupled systems:
Direct connection between processors and I/O devices = Tightly coupled system Connection through networks (PMIN, IOPIN, ISIN) = Loosely coupled system High speed = Loosely coupled system Low speed = Tightly coupled system
Match the following physical characteristics with tightly coupled systems or loosely coupled systems:
Larger in size = Tightly coupled system Smaller in size = Loosely coupled system Every processor has its own memory module = Tightly coupled system Connected through shared memory modules = Loosely coupled system
Study Notes
Tightly Coupled Systems
- Characterized by distributed memory, where each processor has its own memory module
- Efficient when there are minimal interactions between tasks running on different processors
- No memory conflicts occur due to separate memory modules
- Uses a message transfer system, which is less expensive
- Data rate is low and speed is low
- Direct connection between processors and I/O devices
- Generally larger in size
Loosely Coupled Systems
- Characterized by shared memory, with shared memory modules
- Efficient in real-life processing, where tasks interact frequently
- Memory conflicts can occur due to shared memory access
- Connected through networks (PMIN, IOPIN, ISIN)
- More expensive to implement
- Data rate is high and speed is high
- IOPIN helps facilitate connection between processors and I/O devices
- Generally smaller in size
This quiz covers the distinctions between tightly coupled and loosely coupled systems in terms of distributed memory, memory conflicts, message transfer, connection between processors and I/O devices, and size. Tightly coupled systems have distributed memory with individual processor memory modules, while loosely coupled systems have shared memory modules connected through networks.
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