for GPS or monitoring?
127948
Absolutly. But how they get into your ear/tooth/rectum is another story. I used to mess with my little brother all the time when we were kids. Playing what sounded like either computer sounds, or "alien" sounds  from a speak I had placed in the couch. Freaked him out. Of course I would pretend that I couldn't hear it. He eventually figured it out.
111393
Your question is too vague to properly answer.  However, I can suggest looking at mosix for a distributed system.  Types of sensors and what is the ultimate goal of the project will help me to better answer you.
580937
how about a gyroscope?
155384
you can get a scanner (dont think there expensive)
292301
You can go the metorology route. I also have some friends that work for the forrest service that map their trails and do GPS style stuff. I would get comfortable with the common georaphy programs, if your not teaching, then its gonna be involving some computer work
35703
First question, yes.   GPS provides a location in three dimensional space, therefore your receiver can determine your elevation in relation to sea level if equipped (most are).  For best accuracy, you will need at least a 4 satellite position fix...with good satellite geometry (i.e. all the satellites are not lined up in a row in the sky).\n\nSecond question, in theory yes.   Technically, the answer is likely no.  The reason is that GPS signals are very weak by their nature and it requires a sensitive receiver to "hear" them.  While most receivers on the market today will be able to receive signals through tree leaves and other minor obstructions of the sky, the vast majority cannot not receive signals through concrete.  To demonstrate this, just take a walk with your GPS unit underneath an overpass and watch what happens to the signal strength.  \n\nIf you were measuring altitude inside, a barometric altimeter might be a better choice, though be wary of the building's ventilation system, as most are slightly pressurized and would affect this instrument as well.
161844
I KNOW TWO that can track ur actual status one is as u said is "buddy spy" and the other is "buddy check" it has a trial version for a few days
285506
A keylogger should do the job.\n\nThere are software or hardware types.
204483
All GPS can tell you is your location on the earth. GPS cannot tell you where your property corners are, unless you already know the coordinates of those property corners. Your GPS unit does not know where your property corners are until you provide it with the information it needs. \n\nIf you knew the coordinates, which could be either latitude and longitude that mappers use, or state plane coordinates that surveyors use, then you could use GPS to guide you to the corner locations. But since you do not know where the corners are, you have no way of entering the required data into the GPS unit. \n\nYou not only need to get a professional surveyor to survey your property, you also need to tell the surveyor that you need him to provide you with the state plane coordinates of those points, so you can enter them into your GPS unit, then you will be able to find them yourself in the future.
368497
The best software for this purpose is Sysuptime\nhttp://www.ireasoning.com/network_monitor.shtml\nLooks like its free edition may be good enough to manage your devices.
531130
i have a Garmin Map 76. good sized screen, excellent detail and under 200.00. full of features and easy to use. Also very water resistant and tough case. I live In British Columbia Canada and all i do for recreation is outdoors.
546182
Get a user name\nIt's free\nCan view Sky charts and satelites as well\nRegister your location
456207
I would recommend investing in some bright movement censored lights. This will alert you to any movements. For the day time use movement censors with buzzers.
16716
I monitor a datacenter live with these\n\niptraf\niftop
539231
Yes, and also an online/offline thing to show if your there or not.  Maybe nothing more than just a green or red dot in the corner of your avitar
536712
Check out Tripwire technology for this.  It has been around for years, and does a great job.  There is a commercial version (www.tripwire.com), and there is probably still a free version of it available, too.\nHope this helps.
645815
Zone Alarm.\nTry it and you'll see.\nANd one more thing: if avg or any other free programs would be so good.... why are those free?????