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Computer Networking
Computer networks are collections of computers which are connected together in order to communicate and transfer information. Questions about computer networks, networking protocols, and how to set them up belong here.
18,810 Questions
Which address is more important the physical address or the logical address?
In the 8086/8088 the physical address and logical address have the same importance, because they both relate to the address of the operand. It is true that the offset (logical) address is added to the segment address to determine the physical address, but the limitations of the architecture of the processor forces programmers to consider both.
If you are talking about a virtual environment, however, such as in the 80286 or higher, then the logical address is more important than the physical address, because the logical address is the address of the operand, while the physical address is (somewhat) arbitrarily assigned by the operating system.
The AC static switch is used to transfer the load of electrical energy to another location. Its dependability is important for an electronic device.
subtract 20000000H from 30000000H,
because the page table is just a bunch of offsets. So the memory manager would lookup 20000000H in the table, find 10000000H, add'em up and get 30000000H. If that's how it works.
How do you connect optical audio cables?
Optical audio cables are a point-point type connection. There is a starting point and an ending point, with no intermediaries between them. If you wish to have the signal split, you need to use a splitter that provides multiple outputs.
Other than that, the plugs are keyed, so there should be no mystery as to how they should be socketed safely in their respective ports. Connecting optical cables together just doesn't work. Yes, it's possible, but should only be done in emergency situations, as it may well not work at all, in most cases.
What are Electronic Communications Networks?
Electronic Communications Networks (ECNs) are alternative trading systems that function much like stock exchanges--collecting, displaying, and automatically executing customer orders.
What kind of computer folds up for easy storage?
A laptop I ame using one right now
That would be a laptop.
How much is the lady on the moon fiber optic sign worth?
Depending on the condition it could be worth anywhere from $350-$1000 . This sign is one that you don't see often and is beautiful to watch.,and alot depends on the seller & the buyer. The fiber optics & motion of this light is so beautiful that the seller might not part with it unless they are able to get a premium price to justify even selling it.
My reseach didn't find more than 1 or 2 that sold in the past 4 or 5 years. So IMHO it's worth what you want to pay or what a seller is willing to sell at.
Why are there often so many steps between the original signal event and the cell's response?
Each step in a cascade produces a large number of activated products, causing signal amplification as the cascade progresses.
OS is an open-source operating system?
LINUX and Unix OS is open-source operating system.....!
but
Windows version OS is not the open-source operating system....!
What protocol maps layer 2 to layer 3 addresses on the TCP IP network?
RARP (Reverse Address Resolution Protocol) maps layer 2 addresses to layer 3 addresses.
ARP (Address Resolution Protocol) maps layer 3 addresses to layer 2 addresses.
Five generation of computer display in table format?
First Generation:
1942-1955
Vacuum Tubes or Valves
Ø used vacuum tubes as electronic circuit
Ø magnetic drum for primary storage
Ø mercury delay lined for memory
Ø punch-card used as secondary storage
Ø machine level programming used
Ø operating speed was used in terms of millisecond
Mark-I, UNIVAC,
ENIAC
etc.
Second Generation:
1955-1964
Transistor
Ø magnet core memory used as internal storage
Ø magnet tapes used as secondary storage
Ø little bit faster I/O devices
Ø high level language used as programming
Ø processing speed measured in microsecond
IMB 1401,
ICL 2950/10
etc.
Third Generation:
1964-1975
IC(Integrated circuits)
Ø semi conductor memory used as primary storage
Ø magnetic discs were used as secondary storage
Ø massive use of high level language
Ø processing speed increased to nanosecond and even faster
IBM 360 series,
UNIVAC 9000
etc.
Fourth Generation:
1975-1990
VLSI or Microprocessor
Ø massive use of magnetic and optical storage devices with capacity more than 100 GB
Ø advancement in software and high level language
Ø use of 4th generation language(4GL)
Ø operation speed increased beyond picoseconds and MIPS (Millions of Instructions Per Second)
IBM PC,
Pentium PC,
Apple/Macintosh
etc.
Fifth Generation:
1990+
Bio-Chips
Ø AI will make computer Intelligent and knowledge based
Ø very high speed, PROLOG (programming language)
-
The correct order of data encapsulation when a device sends information?
Data, Segment, packet, frame, bit
in that order
Can a concurrent system run on a uniprocessor computer?
A network card (aka. network adapter, network interface card, NIC, etc.) is a piece of computer hardware designed to provide for computer communication over a computer network.
What does the initials PING stand for?
PING does not originally stand for anything, as a ping is named after the SONAR term for ping. However, some people now refer to PING as Packet InterNet Groper.
Console port is used
1 foot
Third layer of osi reference model?
The network layer. # Physical # Data Link # Network # Transport # Session # Presentation # Application
try getting the drivers for the lan card from the manufacturer. If it still does not work, buying new/more ram for your computer MAY help
How are super computers used for weather forcasting?
The same way any computer is used for weather forecasting: a mathematical model. It just runs it faster and can therefore predict further ahead in the same time.
There are 3 main types:
- Straight Through
- Cross-over
- Rollover (less common)
and i guess maybe Fiber, because your question was so vague.
Why collision detection is not possible in wireless network?
two reasons 1. In wireless each station has one antenna for both sending and receiving. hence we cant use the same antenna for both transmitting and at the same time detecting collisions. Further even if we have two antennas, it will be difficult to detect collision. because the transmitting signal power will be much higher than the incoming signal. hence if the sender senses signals it will fairly get a net result (an addition) of its transmitted signal and any other signal transmitted by others. it may be that its own signal is so much powerful than others that it will not recognize any collision. 2. In wireless, only the receiver is in problem. not the transmitter. so detecting for collisions at the senders end does not really make sense. we need to detect collision at the receivers end. the sender is not able to tell it whether there is a collision in receivers end. sukarna_barua@yahoo.com
What is the function of CSMA on a wireless Ethernet network?
It is prevent all connected network cards sending at the same time.
