Message passing-
The message-passing IPC mechanisms transfer data from one process or thread to another in messages across an IPC channel, as shown in Figure (1). If a large amount of data is transferred, it may be fragmented and sent in a sequence of messages. If there's more than one process receiving the data, each message may be sent multiple times, once for each recipient.
Shared Memory-
Shared memory allows multiple processes on the same or different hosts to access and exchange data as though it were local to the address space of each process. When networked applications have data that must be viewed and/or manipulated by multiple processes, shared memory facilities may be a more efficient communication mechanism than message passing.
What is the difference between a regular memory card and an Ultra Memory card
what is the difference between the memory store model and the working memory model?
Parallel processsing ranges from instruction-level parallelism e.g. superscalar and VLIW to message-passing MIMD also called multicomputer, and also includes SIMD e.g. vector and array processing. Multiprocessing is specifically task parallelism, and is by definition shared-memory MIMD with multiple processor cores, sometimes multiple sockets.
One is message-passing model and the other is shared-memory model. Message-passing strengths and weaknesses:message can be exchanged between the processes either directly or indirectly through a common mailbox.it is userful for exchanging smaller amounts of data and easier to implement for intercomputer communication.however,its speed is slower than shared-memory model. Shared-memory strengths and weaknesses:it allows maxmum speed and convenience of communication.however,in the areas of protection and synchronization between the processes some problems exist.
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Memory is microchip; address are processor board slots
difference between register and memory location
pagefile is the virtual memory
Cache memory is smaller and quicker, primary memory larger and slower.
what is the diference between a computer internal memory and external memory
ROM is volatile
Memory refers to the ability to store and retrieve information, while intelligence is the capacity to learn, reason, and solve problems. Memory is a component of intelligence, but intelligence encompasses a broader range of cognitive abilities. Intelligence involves processes like reasoning, understanding, and adapting to new situations.