whats the difference between npn plc and pnp plc?
971113
i have my difficulties to determine what you mean with PLC  but in case you talk about chip technology or the standard transistor in semiconductors the answer could be:\nthere is semiconducting material which is mixed with specific conducting material. \nout of this process you can have material that prefers negative charging or positive charging, N or P material.\nnow the function of a transistor is that you put 3 layers of such material together in a NPN or PNP configuration, connect the base of the transistor to the material in the middle, and two other connections to that material to both 'ends'.\nnow if you put some voltage to the outer connections nothing much will happen except you start filling up the middle section with a negative or in other configuration a positive charge. In this case the whole setup becomes 'conducting' and you can observe current running from one side to the other.\nthis can be used as a switch, or a amplifier in electronics\nnow the difference is which kind of charge you prefer to make the transistor switch.\n\ndoes this solve your question ?
866206
NP is like that ugly girl that P brings along just to make herself look prettier.  Personally I find neither of them attractive.  When it comes to complexity classes, it's what's on the inside that counts.
1031740
both ppt and pps work, the difference being the identical file with ppt extension should open the powerpoint editor while using pps open power point in slide show mode. for a web site link i would think pps is preferable
106744
http://www.cisco.com/en/US/customer/products/hw/routers/ps221/prod_configuration_guide09186a008007cfa7.html
657538
NP is a class of problems that if you had an answer, you could find out pretty quickly if it was the best answer.\n\nP is the class of problems that, in a reasonably quick time, you could find out the best answer.\n\nThe question of P = NP? is whether or not problems that fall under NP can be solved in a time that falls under P. In other words, are they the same class of problems?
1145985
DHCP(Dynamic Host Configuration Protocol) works by assigning(leasing) a single computer an IP address from a pool of available addresses to access either the Internet or resources on a network. \n\nPPPoE(Point to Point Protocol over Ethernet) works by establishing a connection with from pc to pc usually over some type of data line(DSL, Cable, etc.)
692667
I say go straight for CCNP, if you wait too long you may forget some of the finer points of how to configure a router etc.\n\nThat is unless you are using your certification in the industry already.
637686
Net National Product (NNP) is the total market value of all final goods and services produced by citizens of an economy during a given period of time (Gross National Product or GNP) minus depreciation.\n\nDepreciation (also known as consumption of fixed capital) measures the amount of GNP that must be spent on new capital goods to maintain the existing physical capital stock.\n\nNNP is the amount of goods in a given year which can be consumed without reducing the amount which can be consumed in the future. Setting part of NNP aside for investment permits the growth of the capital stock (see economic growth and capital formation), and the consumption of more goods in the future.\n\nNNP can also be expressed as total compensation of employees + net indirect tax paid on current production + operating surplus.
156148
The following link has some information about PLCs as well as external links for additional information:\n\nhttp://www.htservices.com/Tools/PLC/index.htm
373321
CPL(A) is Commercial Pilot Licence (Aeroplane)\nCPL(H) is Commercial Pilot Licence (Helicopter)\nATPL(A) is Airline Transport Pilot Licence (Aeroplane)\nATPL(H) is Airline Transport Pilot Licence Helicopter\n\nCheck the link below, most likely they can answer your questions about schools in the forum there.  Good Luck!
653197
MSKB article: 158081 - How to Print .prn or .ps Files in Windows 95 or Windows 98. I think it works on other versions of Windows as well.. not too sure.\n\n\nhttp://support.microsoft.com/?id=158081
710300
EPROM  is Electronicaly Programable Read Only Mamory\nPROM is Programable Read Only Mamory\n\nin EPROM you can change program electronically easily,\nwhiel in PPROM you can but not so easily, it need to erase previous memory by chemical solusion and then create new one
449005
What exactly are you trying to do? \n\nYour ? is not very specific\n\nMany PLCs, including Z-World's, have RS-232 serial ports that can communicate with other computers.\n\nFree free to e-mail me - Chris
227612
There are several differences between a PII and a PIV. First a Pentium 2 is much slower. Some Pentium 2 were built in a slot design, which is similar to the way a video or sound card is. Only the Pentium 2 is this way, it would be hard to find motherboards that would even support this. The P1 P3 and P4 are all socket based. The processor "plugs" into the motherboard and a heat sink of your choice is placed on top of it. High end P4s run very hot, a P2 does not.
1124548
Whichever one you want. Not really any differences. I got a $59.00 one from best buy or somewhere, handles 4 at a time, I only have 1, never a problem yet. I have a linksys unit.
242064
From a practical standpoint, the difference is a legal one.  Both are required to practice under the oversight of a physician (at least in most states, if not all) but the nurse practitioner is required to execute pre-provided protocols, created by a physician or group thereof; the physician's assistant has somewhat greater autonomy.\n\nFrom a practical standpoint, as a physician that has had to work as a supervisor both to advance practice nurses (which includes nurse practitioners) and physicians assistants, the difference is nearly nil: both end up doing whatever the supervising physician trusts them to do, with as much (or as little) autonomy as the physician is comfortable extending to them.  I've known some in both groups that functioned almost on a par with a physician.  I've known a few that thought they were on a par with a physician, and that weren't, by a very long ways.\n\nIn the long haul, the real difference isn't the label, it's the experience, wisdom and integrity of the person behind the label that counts.
518521
CCNA basically means Cisco Certified Network Associate. It covers totally the part of how to install and configure Cisco Routers and TCP/IP. The next step is CCNP. that is Cisco Certified Network Professionals. But u have to attend the course if u dont have basic knowledge.