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comment Connecting directly to another computer knowing only the MAC address?
@Colin BTW, it's best not to use comments for extended discussion like this. StackExchange smiles on those who do some research, so read up on networking technologies in Wikipedia or an actual book and feel free to post more questions when you get stuck.
2d
comment Connecting directly to another computer knowing only the MAC address?
@Colin Depends on the physical layer -- sometimes all the machines are connected to a single hub, as in 10baseT and similar; sometimes they're all connected to the same physical wire, as in 10base2, a.k.a. "thin-net", sometimes they're not connected at all but all talk to the same hub, as in WiFi. But there are lots of different network technologies and the details vary from one to the next, so although ethernet is a good model to have in your head, don't imagine that it's the only way to do things.
2d
revised Connecting directly to another computer knowing only the MAC address?
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2d
comment Connecting directly to another computer knowing only the MAC address?
It doesn't know. That's basically how ethernet works. When one node on the network has something to say, it listens first to see if anyone else is sending something, and if not it just puts the message out there on the network for anyone to hear. If some other node starts at exactly the same time, they both detect the collision, stop talking, wait a bit, and try again.
2d
answered Connecting directly to another computer knowing only the MAC address?
Dec
9
awarded  terminology
Dec
9
answered What is the purpose of chunking strings in natural language processing?
Nov
25
awarded  Good Answer
Nov
25
awarded  Enlightened
Nov
25
awarded  Nice Answer
Nov
9
comment Recursion without factorial, Fibonacci numbers etc
@törzsmókus No specific language. The syntax is pretty close to C, Obj-C, C++, Java, and many other languages, but if you want real code you may need to substitute an appropriate operator such as || for the OR.
Nov
4
comment Should I use future or present tense when writing a design spec document?
Not the down voter, but an obvious problem in using system existence as the criterion for deciding is that at some point the system will transition from "doesn't exist yet" to "existing system," and "for the sake of accuracy" the document will need to be rewritten. Also, it's not unlikely that some parts of the system already exist while others don't, and switching back and forth will make it hard to understand if the document describes the current system or states future requirements.
Oct
16
awarded  Revival
Sep
21
awarded  Enlightened
Sep
21
awarded  Nice Answer
Sep
21
comment Dependency ordering algorithm of a compiler
Why is 'not recursive' a requirement? That seems like an implementation detail.
Sep
21
comment Dependency ordering algorithm of a compiler
You might read about dependency graphs.
Sep
14
comment Why isn't there a true “Date-Only” data type?
@NathanTuggy et al Let's move the extended discussion of SI units to Programmers Chat -- that's really not the point.
Sep
14
comment Why isn't there a true “Date-Only” data type?
@kevincline Fully agree. OP didn't specify a language, so I was aiming for generality.
Sep
14
comment Why isn't there a true “Date-Only” data type?
@MikeNakis The result would be microamps, not nonsense. More important: when you use a date rather than a second or millisecond, you're generally talking about the entire day -- a time period -- rather than a specific time, and depending on context it may be a repeating event.