hi,programmers
question as topic.
just a newbie question.
Posted on 2004-11-20 07:55:08 by geegle
From dictionary.com:
syn?chro?nous
1. Occurring or existing at the same time
2. Moving or operating at the same rate

asynchronous
Not simultaneous; not concurrent in time; -- opposed to synchronous.
adj 1: (digital communication) pertaining to a transmission technique that does not require a common clock between the communicating devices; timing signals are derived from special characters in the data stream itself 2: not synchronous; not occurring or existing at the same time or having the same period or phase

/flame
The interesting question is: having shown your lack of internetsearch skills, will you now learn?
/flame

Fake
Posted on 2004-11-20 10:21:52 by Fake51
Just one hint, improve your grammar & syntax.

?
|
After a comma use space, so it'll look much nicer.

What's the difference between asyn & syn?

Greetings fellows!

Thanks in advance.
Posted on 2004-11-20 14:01:16 by Char_Amuro
hi, Fake51. i'm sorry for my wrong expression. what i what to know is the
difference between asynchronous operation & asynchronous operation on
a computer. but not the word. thank you all the same!

to Char_Amuro:
thanks for you hint, i will do what you said. best wish!
Posted on 2004-11-21 07:23:49 by geegle
geegle,

in a computer context, synchronous means events that occur sequentially where asynchronous means events that happen in parallel. Its the difference between things happening in a single thread where they must occur one after another as against multiple threads where they can occur side by side.

A multiple connection web browser that can handle more than one download at a time is a good example of asynchronous operations.
Posted on 2004-11-21 08:43:22 by hutch--
hi, hutch. i complete understand. thank you!
Posted on 2004-11-21 10:34:26 by geegle
geegle,

in a computer context, synchronous means events that occur sequentially where asynchronous means events that happen in parallel. Its the difference between things happening in a single thread where they must occur one after another as against multiple threads where they can occur side by side.

A multiple connection web browser that can handle more than one download at a time is a good example of asynchronous operations.


it also means with and with out a clock signal
as in serial ports
with out a clock asynchronous (start and stop bits like the dial up modem)
with a clock synchronous ( with another wire for the clock signal like usb port)
Posted on 2004-12-08 12:36:56 by rob.rice
Async doesn't necessarily mean operation in parallel. If we're talking in relation to, say, teh win32 API, sync means that the operation is done when the call returns, and async means it can complete "at any time". This does mean that sync events happen in order, while async can happen in any jumbled way you can imagine.
Posted on 2004-12-08 13:15:11 by f0dder