On Facebook Messenger, "seen" indicates that the recipient has opened the message and viewed it, while "read" can sometimes refer to the act of the recipient actively engaging with the content. However, in most contexts, "seen" is the more commonly used term to denote that the message has been viewed. The distinction often lies in the interpretation of engagement rather than a technical difference in the messaging feature.
The double tick indicates that the phone has received the message, but it doesn't mean that it has been read. however, on an iphone, the message can come through to the lock screen, which could mean that the receiver has read a snip of the message. It is only when the phone has been unlocked that it will be doubled ticked.
i just read your message
The difference is that ,,,You have to read the book!
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Biblegateway.com You can look up any verse or book and switch between multiple versions including the Message
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Yes, anyone can read your message board.
"Please read the message below from..."
SNMPV3 is added with security and administration feature. So that only intended recepient can read the message. Anyone who intercept the SNMPV3 message can see only junk characters, those messages will not be in readable format. this type of security feature is not available in SNMPv1/V2.
SHM:it's an area of storage that can be read and written by more than one process.MSGQ:A message queue is like a pipe,by using more comprehensive mechanism we can read message from both end.SHM:It provides no inherent synchronizationMSGQ:It provides inherent synchronization,So the writer can never fail after writing only a partial message, and the reader will either retrieve a complete message or nothing at all.SHM:possiblity of occuring race condition.MSGQ: No race conditon actually occure.SHM: fasterMSGQ:slower than shared memory