Days of my life

Suzuki Kei Car diary

2018-07-25T09:10:00.000+05:30

Nilame

2018-07-25T09:07:00.003+05:30

How to Install Viber on PC

2013-10-08T22:08:00.002+05:30

Hay! Everybody , here I'm going to teach you "how to install Viber on your computer". So all you have to do is follow the steps mentioned below.

01. Download and install Viber on to your computer by clicking on the download link on Viber's web site. To go to the Viber's web site just click the following link.

http://www.viber.com/

02 Then when opening the Viber for desktop application will be prompted to verify your mobile number using the viber app installed on a mobile phone.

But don't worry if you don't have a mobile phone which supports viber, still you have an option that you can use an app player. So bluestacks is one good example for an app player. Go to the following link to download the app player.

http://www.bluestacks.com/

After installing the app player on to your PC you can use the player just like a mobile phone to run many android/windows mobile apps like viber, Whatsapp etc..

Download Viber to your virtual mobile phone (bluestacks app player).

03 Verify your phone number using viber app which has been installed to bluestacks player,

Note:- You will receive a code as an SMS to your phone, Enter it to the viber app on bluestacks then the phone number will be verified.

04 verify the viber account on the viber software installed on your computer.

Note:- the verification code will be received a as a viber message to the bulestacks player

05 keep enjoying viber :)

Thanks for reading

Music quotes , Senasum Rajapaksha

2013-09-05T15:23:00.001+05:30

2013-09-05T08:28:00.003+05:30

Click here

BlueStacks - Run mobile apps on pc

2013-08-30T21:10:00.000+05:30

Hi and welcome to my blog. So This post is about a Software named Bluestacks which you can use to run Android applications on your pc, I mean Windows PCs, Macintosh computers and Windows tablets.

"The clock is running. Make the most of today. Time waits for no man. Yesterday is history. Tomorrow is a mystery. Today is a gift. That's why it is called the present.", Alice Morse Earle,

2013-08-25T12:23:00.002+05:30

“Yesterday is a canceled check; tomorrow is a promissory note; today is the only cash you have - so spend it wisely”

(2730-011) Fundamentals of electronic communication 02- Noise

2013-03-15T12:54:00.003+05:30

IVQ in Telecommunication
Systems 2730
Technician Diploma

(2730-011) Fundamentals of electronic communication 02

Noise

-----------------------------------------------------------

Introduction

Information signals travel over communication channel can be distorted due to different reasons. Mixing unwanted signals with the wanted signals may be one reason for such change,

Adding Noise to a signal

Noise can be described as "any unwanted signal that present in a communication system"

Noise is a mixture of sinusoidal signals with different frequencies and aptitudes.

Information Transmission is affected by noise if any frequency component of the noise signal is fallen in to the pass band (frequency spectrum) of the information signal.

Effect of Noise

The transmitter of an communication system generates an very strong wanted signal with a very low noise signal level, hence the Tx output has a very high SNR

As the signal travels over a communication channel the noise signal strength increases while decreasing the wanted signal strength. Therefore , SNR value gradually decreases along the communication channel.

Whatever the communication system, decreasing SNR ( Increasing noise ) affects the communication in different ways.

example:

01 Distort the wanted signal
02 SNR decreases along the medium
03 The receiver cannot reproduce the original information
04 Limits the distance of communication with a given transmit power
05 Produce bit errors in digital system
06 Sometimes wipe out the wanted signal
07 If high noise power is received communication equipment may be burnt.

Note:- Noise from environment can often be dramatically reduced by twisting, shielding, grounding and minimizing wire length.

Effect of noise on analog signals

Since the wanted signal and noise signals in an analog communication system is in analog form noise on an analog communication system cannot be removed

In addition signal amplifying devices are placed to improve the wanted signal, but also the unwanted noise signal are improved

Therefore the noise accumulate along the transmission medium of an analog system

But effect of noise on digital communication system can be minimized by introducing Pulse Re-generators (also known as Regenerative Repeaters) at regular intervals.

But some noise effect cannot be fully eliminated

example : Lightning

Analog Communication System

Decide weather the received signal is above a particular voltage level or below another voltage level, Accordingly new signal is produced

Example: In data transmission,
Noise reduces the achievable bit rate over a given medium
Noise due to lightning may produce bit errors
If the noise level is high compared to the wanted signal level. The information is completely obliterated

Noise Sources
Categorizing noises

Noise can be divided in different ways

Natural or man-made noise
White noise or Impulsive noise
Internal or External Noise

Natural or man-made noise

Noise may arise from different sources and they can be categorize as either man made or natural

by nature noise can be divided in to

White noise
Impulsive noise

White Noise

If noise is spread throughout the whole electromagnetic frequency spectrum and noise aptitudes are equal at all the frequencies such a noise is known as a "White Noise".

Example:

Thermal noise
Solar noise

Theoretically white noise has an infinite bandwidth

Flicker noise

Experimentally provided that an unwanted signal exists in electronic components, even the component is kept at 0 Kelvin temperature ( no thermal noise) and no external voltage is applied ( no shot noise). This noise is known as Flicker noise.

The origins of flicker noise are somewhat less understood as compared to thermal noise and shot noise, but predicts that, may be due to imperfection in the crystalline structure of all materials

Flicker noise is inversely proportional to the frequency at the signal being observed. Due to this reason flicker noise is also known as 1/f noise.

Expressing noise level

Noise level in a communication system can be expressed by

Signal to Noise Ratio (S/N or SNR)
Noise factor (F)
Noise Figure (NF
Noise temperature (Tn)

Signal to Noise Ratio (SNR)

SNR is a ratio indicting that the relative strength of a wanted signal and noise in a communication system.

The ratio between signal power and the noise power is defines as SNR

Signal to Noise Ratio (S/N or SNR) = Signal power (Ps) / Noise power (Pn)

SNR can also be expressed in decibels (dB)

S/N = 10 log₁₀ (Signal power/ Noise power)

Example 01

If the Input signal power is 55µW and input noise power is 5.5 nW, calculate SNR at the input of the communication system as a ratio in dB

= 10 log₁₀ ( Ps/Pn)

=10 log(55x10^-6/5.5x10^-4)

=40dB

Example 02

Calculate the maximum noise power allowed at the input of a communication receiver in order to maintain 40 dB SNR at the input for an input signal power of 20 pW

40 = 10 log₁₀ (Ps/Pn)

4 = log (20 x 10^-12/ Pn)

= 20 x 10^-16W

Example 03

Determine the signal power required at the input of a piece of communication equipment in order to maintain 35dB SNR. That the input power noise is 0.1nW

SNR in dB using Voltage/Current Values

S/N = 20 log₁₀(Vs/Vn)

S/N = 20 log₁₀(Is/In)

Vs - Signal Voltage

Vn – Noise Voltage

Is – Signal Current

In- Noise Current

Example 01

The internal noise produced by an amplifier with 20 dB gain is negligible. If the noise voltage at the input of amplifier is 5mV and output signal voltage is 50 V, calculate the SNR in dB.

Note:

The received signal of a communication system has two components, the wanted signal and the unwanted signal.

To identify/receive information from the received signal, the wanted signal strength should be higher than the noise signal strength. Otherwise the information cannot be identified.

Since SNR determines the accuracy with which received information can be identified. Communication equipment is designed to produce the highest possible SNR.

To identify information a minimum gap should be maintained between the wanted signal power and the noise signal power.

Therefore a minimum threshold SNR level is established for different services for effective communication. Beyond which if the noise increases information would be lost.

Example

Typical threshold SNR limits for different services

Telephone calls over PSTN 35dB

Television system 50dB

Satellite 53dB

Noise factor (F)

Nose factor is the ratio of input S/N power ratio to the output S/N power ratio

Noise factor (F) =input signal to noise power ratio / output signal to noise power ratio

Noise figure (NF)

The noise factor, expressed in decibels is known as the noise figure

Noise figure (NF) = 10 log₁₀ (noise factor)

Noise figurer (NF) =10 log₁₀ (input signal to noise power ratio / output signal to noise power ratio)

Example 01 – past paper 2004 June Q5

An amplifier has an output signal of 1mV and a noise level of 0.514 mV. Determine the signal to noise ratio (SNR)
An amplifier has an output signal of 1 watt and the input noise is 0.01 watt. When the output signal is 10 watts and the output noise power is 0.3 Watts calculate the amplifier’s noise figure.

Example 02 – past paper 2004 June Q5

An amplifier with a noise ratio of 4 dB has an input SNR of 20dB. Calculate the output signal noise as,

A ratio
dB

Note:

Noise figure (NF) and noise factor (F) are measures of deration of the signal to noise ratio (SNR) caused by components in an electronic circuit or device.

These figure indicate how much the signal to noise ratio deteriorates along a communication system

NF = 10 log₁₀ (S/N) = 10 log₁₀ (S/N)_in - 10 log₁₀ (S/N) _out

Noise Factor = (S/N in dB) _in - (S/N in dB)_out

Output noise power of an amplified noise factor (F) when the gain is G

Operating bandwidth of the amplifier – B

Temperature – T₀

PN _in = KT₀B

PS _out = GPS _in

F = (S/N)_in / (S/N)_out

F = PN_out/GKT₀B

PN_out = FGKT₀B

Noise Temperature (Tn)

Tn is another method of expressing noise introduced by an electronic component or source

Given as a temperature value in Kelvin

NOISE

With reference to an electrical system, noise may be defined as any unwanted form of energy which tends to interfere with proper reception and reproduction of wanted signal.
OR
Noise is random, undesirable electrical energy that enters the communications system via the communicating medium and interferes with the transmitted message. However, some noise is also produced in the receiver.

Classification of Noise

Noise may be put into following two categories.

External noises, i.e. noise whose sources are external.External noise may be classified into the following three types:
1. Atmospheric noises
2. Extraterrestrial noises
3. Man-made noises or industrial noises.
Internal noise in communication, i.e. noises which get, generated within the receiver or communication system.Internal noise may be put into the following four categories.
1. Thermal noise or white noise or Johnson noise
2. Shot noise.
3. Transit time noise
4. Miscellaneous internal noise.

External noise cannot be reduced except by changing the location of the receiver or the entire system. Internal noise on the other hand can be easily evaluated Mathematically and can be reduced to a great extent by proper design. As already said, because of the fact that internal noise can be reduced to a great extent, study of noise characteristics is a very important part of the communication engineering.

Explanation of External Noise

Atmospheric Noise

Atmospheric noise or static is caused by lighting discharges in thunderstorms and other natural electrical disturbances occurring in the atmosphere. These electrical impulses are random in nature. Hence the energy is spread over the complete frequency spectrum used for radio communication.
Atmospheric noise accordingly consists of spurious radio signals with components spread over a wide frequency range. These spurious radio waves constituting the noise get propagated over the earth in the same fashion as the desired radio waves of the same frequency. Accordingly at a given receiving point, the receiving antenna picks up not only the signal but also the static from all the thunderstorms, local or remote.
The field strength of atmospheric noise varies approximately inversely with the frequency. Thus large atmospheric noise is generated in low and medium frequency (broadcast) bands while very little noise is generated in the VHF and UHF bands. Further VHF and UHF components of noise are limited to the line-of-sight (less than about 80 Km) propagation. For these two-reasons, the atmospheric noise becomes less severe at Frequencies exceeding about 30 MHz.

Extraterrestrial Noise

There are numerous types of extraterrestrial noise or space noises depending on their sources. However, these may be put into following two subgroups.

Solar noise
Cosmic noise

Solar Noise

This is the electrical noise emanating from the sun. Under quite conditions, there is a steady radiation of noise from the sun. This results because sun is a large body at a very high temperature (exceeding 6000°C on the surface), and radiates electrical energy in the form of noise over a very wide frequency spectrum including the spectrum used for radio communication. The intensity produced by the sun varies with time. In fact, the sun has a repeating 11-Year noise cycle. During the peak of the cycle, the sun produces some amount of noise that causes tremendous radio signal interference, making many frequencies unusable for communications. During other years. the noise is at a minimum level.

Cosmic noise

Distant stars are also suns and have high temperatures. These stars, therefore, radiate noise in the same way as our sun. The noise received from these distant stars is thermal noise (or black body noise) and is distributing almost uniformly over the entire sky. We also receive noise from the center of our own galaxy (The Milky Way) from other distant galaxies and from other virtual point sources such as quasars and pulsars.

Man-Made Noise (Industrial Noise)

By man-made noise or industrial- noise is meant the electrical noise produced by such sources as automobiles and aircraft ignition, electrical motors and switch gears, leakage from high voltage lines, fluorescent lights, and numerous other heavy electrical machines. Such noises are produced by the arc discharge taking place during operation of these machines. Such man-made noise is most intensive in industrial and densely populated areas. Man-made noise in such areas far exceeds all other sources of noise in the frequency range extending from about 1 MHz to 600 MHz

Explanation of Internal Noise in communication

Thermal Noise

Conductors contain a large number of 'free" electrons and "ions" strongly bound by molecular forces. The ions vibrate randomly about their normal (average) positions, however, this vibration being a function of the temperature. Continuous collisions between the electrons and the vibrating ions take place. Thus there is a continuous transfer of energy between the ions and electrons. This is the source of resistance in a conductor. The movement of free electrons constitutes a current which is purely random in nature and over a long time averages zero. There is a random motion of the electrons which give rise to noise voltage called thermal noise.
Thus noise generated in any resistance due to random motion of electrons i5 called thermal noise or white or Johnson noise.
The analysis of thermal noise is based on the Kinetic theory. It shows that the temperature of particles is a way of expressing its internal kinetic energy. Thus "Temperature" of a body can be said to be equivalent to the statistical rms value of the velocity of motion of the particles in the body. At -273°C (or zero degree Kelvin) the kinetic energy of the particles of a body becomes zero .Thus we can relate the noise power generated by a resistor to be proportional to its absolute temperature. Noise power is also proportional to the bandwidth over which it is measured. From the above discussion we can write down.
P_n∝ TB
P_n = KTB ------ (1)
Where
Pn = Maximum noise power output of a resistor.
K = Boltzmann’s constant = 1.38 x10-23 joules I Kelvin.
T = Absolute temperature.
B = Bandwidth over which noise is measured.
From equation (1), an equivalent circuit can be drawn as shown in below figure

From equation (2), we see that the square of the rms noise voltage is proportional to the absolute temperature of le resistor, the value of the resistor, and the bandwidth over which it is measured. En is quite independent of the Frequency.
Example
R.F. amplifier is saving an input resistor of 8Kr and works in the frequency range of 12 to 15.5 MHz Calculate the rms noise voltage at the input to this amplifier at an ambient temperature of 17^oC?
Solution:

Shot Noise

The most common type of noise is referred to as shot noise which is produced by the random arrival of 'electrons or holes at the output element, at the plate in a tube, or at the collector or drain in a transistor. Shot noise is also produced by the random movement of electrons or holes across a PN junction. Even through current flow is established by external bias voltages, there will still be some random movement of electrons or holes due to discontinuities in the device. An example of such a discontinuity is the contact between the copper lead and the semiconductor materials. The interface between the two creates a discontinuity that causes random movement of the current carriers.

Transit Time Noise

Another kind of noise that occurs in transistors is called transit time noise.
Transit time is (he duration of time that it takes for a current carrier such as a hole or current to move from the input to the output.
The devices themselves are very tiny, so the distances involved are minimal. Yet the time it takes for the current carriers to move even a short distance is finite. At low frequencies this time is negligible. But when the frequency of operation is high and the signal being processed is the magnitude as the transit time, then problem can occur. The transit time shows up as a kind of random noise within the device, and this is directly proportional to the frequency of operation.

MISCELLANEOUS INTERNAL NOISES Flicker Noise

Flicker noise or modulation noise is the one appearing in transistors operating at low audio frequencies. Flicker noise is proportional to the emitter current and junction temperature. However, this noise is inversely proportional to the frequency. Hence it may be neglected at frequencies above about 500 Hz and it, Therefore, possess no serious problem.

Transistor Thermal Noise

Within the transistor, thermal noise is caused by the emitter, base and collector internal resistances. Out of these three regions, the base region contributes maximum thermal noise.

Partition Noise

Partition noise occurs whenever current has to divide between two or more paths, and results from the random fluctuations in the division. It would be expected, therefore, that a diode would be less noisy than a transistor (all other factors being equal) If the third electrode draws current (i.e.., the base current). It is for this reason that the inputs of microwave receivers are often taken directly to diode mixers.

Signal to Noise Ratio.

Noise is usually expressed as a power because the received signal is also expressed in terms of power. By Knowing the signal to noise powers the signal to noise ratio can be computed. Rather than express the signal to noise ratio as simply a number, you will usually see it expressed in terms of decibels.

A receiver has an input signal power of l.2µW. The noise power is 0.80µW. The signal to noise ratio is

Signal to Noise Ratio = 10 Log (1.2/0.8)
= 10 log 1.5
= 10 (0.176)
= 1.76 dB

Noise Figure

Noise Figure F is designed as the ratio of the signal-to-noise power at the input to the signal to noise power at the output.
The device under consideration can be the entire receiver or a single amplifier stage. The noise figure F also called the noise factor can be computed with the expression
F = Signal to Noise power Input/Signal to noise power output
You can express the noise figure as a number, more often you will see it expressed in decibels.

We don't have Halloween but we have Vesak

2012-11-01T08:40:00.000+05:30

Halloween is a festival celebrated by many people all-around the world. But in my country I don't feel still any person celebrates Halloween or may be there are few people.Still most of the people even don't know, what Halloween is.

Happy Halloween

As it is Halloween, today I would like to write about a festival which we celebrate instead of Halloween.

Yes it is the Vesak Festival.

Vesak is considered as both religious and cultural festival because not only people in my country but also many Buddhist all around the world celebrate Vesak .

Observe Sil

It is celebrated on the full moon day in May and is celebrated memorizing some important events of Buddhas life which took place on the Vesak full moon day. They are the Birth, Supreme attainment as Lord Buddha, and the Parinibbana.

Vesak Lanterns

To celebrate many people make different types of lanterns to light on the Vesak day night and some make Pandols. I believe involving in such activities they practice patient.

Freely given foods (dansal), observing sill can be considered as great activities during this time

Dansal

I believe this is the best time you can experience Sri Lankan's hospitality, sharing and caring to each others.

Thanks for reading

Have good days.

Hercules Game download link and passwords

2012-10-31T20:28:00.001+05:30

If you are playing the game, Hercules you may be looking for some passwords to jump into levels at once. Or else you may always have to start playing the game from the beginning because it has no saving option.

Hercules

If the game hasn't installed yet you can use the following link to download the game.....

Click here to download the game

Before learning the passwords you have to get familiar with the following symbols

centaur

coin

gladiator

helmet

hercules

hydra

lightning

Medusa

Minotaur

Pegasus

Archer

Now you can use the following codes and then press enter.

Beginner Level

Level Password

Your Basic Did Coin, Helmet, Hydra, Lightning

The Hero's Gauntlet Hercules' Head, Medusa, Pegasus, Pegasus

Centaur's Forest Lightning, Coin, Lightning, Archer

The Big Olive Part 1 Archer, Gladiator, Hydra, Lightning

The Big Olive Part 2 Lightning, Minotaur, Medusa, Coin

Hydra Canyon Pegasus, Coin, Lightning, Archer

*only the beginner level passwords are given here.

How to download torrents for free

2012-10-30T20:52:00.000+05:30

Torrent is a free service which allows you to share files faster via the internet introduced by bit torrent.

But today many people have used to use torrent technology to download movies games and other programs for free.

If you want to use this technology for any of above purposes first you have to download and install a torrent software.

BitTorrent Software

So you can either download Bit torrent or u torrent.

Go to any of the following links and download one of a torrent software on to your computer for free.

http://www.utorrent.com/

http://www.bittorrent.com/

Now after installing the above mentioned software you can go to a site where the free torrents are given.

here are my favorite free torrent sites.

The Pirate Bay
EZTV
Torrentz
KickAss Torrents
Fenopy.eu
ISOHunt
ExtraTorrent
1337x

personally I like to use the pirate bay site. Now go to the site and search for the item whatever you want.

Tips : If you search on Google you can add pirate bay to the end of the keyword.

example: file name piratebay download

Another thing, if you like you can use top 100 option to view top 100 torrents.

Whenever you search for a file you will see a list so that you can read their comments to choose the best torrent.

if you are satisfied with the torrent you can click on the link "get torrent file"

Torrent Download link

Then it automatically starts downloading the torrent on your torrent software.

Torrent Software

Wait till the torrent is fully downloaded to enjoy.

Have good days. thanks for reading.

Screenshots, How I do it.

2012-10-30T14:11:00.000+05:30

There are many ways to capture your computer screen.

But not like this..

or this

The most common way people use to take screenshots is using the prntscr key on the keyboard

If you are using Windows vista / 7 or higher you can use the snipping tool as well.

To use the snipping tool just type the word snipping on the start menu search box then you will find the snipping tool icon.

But more than all above methods I like to use the software, green-shot

Because there are many advanced options available to be chosen.

It provides with more advanced options for your print screen key.

Try it... I assure it isn't a waste.

Thank you for reading.

Have good days!

If a program doesn't work on your current operating system.

2012-10-30T13:36:00.001+05:30

There can be some old games or programs that don't support your installed operating system, But do you know that you can make them work using compatibility options in Windows.

To change the compatibility options, right click on the program Icon which doesn't run on your computer.

It doesn't matter whether it is shortcut icon or the original program Icon

Now click on properties Then you will have the properties dialog box as shown below

Then click on the compatibility tab and change the compatibility mode to an older version by adding a check to the check box and try ruining it again. If it still doesn't work just try another version.

Thank you very much for reading.

Have good days.

House Wiring Diagram Sri Lanka

2012-10-28T08:09:00.001+05:30

Recently one of my uncles asked me whether I can help him with his house wiring. But I have never done one before. Unfortunately there were no house wiring diagrams available on the internet too. So I had to work hard and find it out my self.

Now I am presenting this to you as I realized that house wring is very easy, that anyone can do it.

In Sri Lanka you have to do the Inside wiring only and the outside wiring is done by the electricity board. But it is necessary to fix the outside L bar.

I think my diagram is clear enough to understand the wiring techniques. I took the knowledge from my school electronic book.

Should there be any unclear point you can comment here or contact me on my email.

* Be careful ! electricity is dangerous.

Thank you for reading

Have great days. wish you all the best!

Here are some ASCII codes for you to make your chat more attractive

2012-10-19T21:12:00.002+05:30

You can type many symbols using ASCII codes which are not available on your keyboard. It is important use an Alt key when typing the ASCII code.

Steps are;

Press and hold an Alt key on your keyboard --> type the relevant number --> release the Alt key

Here I have given the most important ASCII codes which is thought to be very useful for you on chatting.

Alt+1 :☺ Alt+2 : ☻ Alt+3 : ♥

Alt+4 : ♦ Alt+5 : ♣ Alt+6 : ♠

Alt+13: ♪ Alt+14: ♫ Alt+15: ☼

Use these to make your chat very attractive whenever the emotions are not available.

Thank you for reading. Have good days

Easy Networking for Kids

2012-10-17T18:02:00.001+05:30

If you are thinking of building a network and if you are not a expert or an experienced person It is OK that you can try this as I did.

Do you know? Networking allows you to

Share files among two ore more computers easily just in few seconds. (speed file share)
Share internet, printers and other resources
Play LAN games, (believe me this is the best part)
Control other computers using your computer.
Share your screen with other computers. (good for teachers- use netop software)

Now, if you are interested get ready I am going to guide you for an easy network installation.

You need to have
01:

If it is a network there should be two or more computers , They are with network cards. To make sure that your computers have network cards you can check its ports. the network port, also called as RJ45 port should be like this.

RJ45 port

* There is another port same like RJ 45 port. It is called Rj11/modem port. But it has only two pins. So it is very important to identify RJ45 port correctly which is used in networking.

If your computer doesn't have one. There are network cards available for you to buy. They wan't cost much.

The Next thing you need to have is a Network cable which is known as rj45 cable or cat 5 cable.

RJ45 Cable

If you are going to make two computers network, one rj45 cable is sufficient.

But If more computers want to be connected you have too buy more than one cable. It is a good practice if you could fix the cable yourself,

Don't worry it is easy to fix a RJ45 cable.

Buy
rj45/ cat5 wires ,
rj45 clips
A crimping tool.

Networking tool

Crimping tool

RJ45 clip

Cat5 cable

Cut the wire in to pieces according to your required lengths. Then use the crimping tool to fix the plug to the both ends of the pieces.

You need to learn something important here. Yes there are some standards of connecting these clips/plugs .

first identify the pin arrangement of the plug.

Rj45 pin arrangement

Then learn that there are two wiring standards. T568A and T568B

Wiring Standards

Now if you fix both side wires to the rj45 plug according to the T568A standard the wire is called a Straight thru.

And if you fix one side according to T568A and the other side according to T568B the wire is called crossover.

Straight-thru Vs Crossover

Usually crossover is used when connecting two computers together. but don't worry I have experienced that straight thru also can be used when connecting two computers together. So it doesn't matter at all.

Now two computers can be connected together easily just by using the cable.

Peer to peer network

How to share and access to others files

If the two computers are connected. This is how you can share files. Go to my network place then you will see the computer connected to your computer. just go in to that computer then you will find its shared folders so you can view copy its contents.

Each and every folder you want to make available to the connected computer should be shared manually. In order to share right click on the particular folder and go to the share tab and click on share.

* Make sure that you give permissions to the folders which you are gonna share. otherwise they wan't be accessible on other computers.

If you don't find the other computer on my network place

Windows shows computers on my network place only if they were in the same work-group so make sure that both computers are in the same work group. Go to system properties (right click on my computer Icon and select properties) to find out the work-group name

If you want to connect more than two computers.

If you are thinking of a network which has more than two computers you have to buy a Network switch or a hub. because the network card which your computer has only one network port. so practically you can't plug more computers on the same port at the same time. :p

Network switch

* the switch you are going to buy should have sufficient ports. Hopefully switches are available in different number of ports. like 4 port, 6 port, 8 port etc.

Now connect all the computers to the switch, using network cables.

Basically this network is called a work group and if you add a server the network becomes more advanced and is called as a domain network.

Ip address assigning

To make your network more advanced you can add Ip addresses to each and every computer or else let it be on the auto IP address assigning mode.

Software

Some network games allow you to play on lan. eg : commandos,halo etc.

If you want to monitor and share your screen trough the network you can use a software like Net-op school.

Thank you for reading.. Have good days. Hay, don't forget If you have any problem please feel free to ask.

How to fix Dell N5010 overheating and sudden turn off problem?

2012-10-10T23:14:00.003+05:30

I am writing this post to the thousands of people you have faced to the above mentioned problem. Don't worry, be cool.. the problem can be fixed.

In my topic I have mentioned dell N5010 laptop. But I think this will be very useful to other types of laptop or Desktop users too.

How I observed the over heating..

One day I was playing a computer game, suddenly the computer turned off but not in the proper way (at once) and I observed a high heat close to the fan area.

Then after few minutes I turn it on and Installed a software called " Pc Wizard " (A freeware) and observed the heat.

After installing PC wizard you can use this Icon to see the temperature of your computer. So the Temperature of my laptop exceeded 100 C whenever I play a game.

Then I realized there should be something wrong with the fan or the heat sink. So I asked a technician for help and he said that I will have to pay more than $90 and also It will take more than 4 days for them to repair my laptop.

Finally I came to the conclusion I will repair it myself. and if you want to repair it your self too here are the steps.

step 1: observe the laptop listen to the fan. If you feel It works fine you don't need to re-install it. but you will have to re install the terminal grease between the heat sink and the CPU.

step 2: Watch The you tube video on how to dissemble the laptop.

Note :- Do not try to dissemble fully at once if this is the first time you do it. make it into two steps.

if you have a different modal (may be hp, Toshiba , etc) find the correct dissemble path.

step 3: Now dissemble the laptop but you have to be very neat and patient. keep the screws separately for each part.

step 4: Observe the things perhaps you can solve the problem in this stage by cleaning the fan and other parts. but be careful not to damage any part.

If you have to replace the Fan, It can be bought from ebay.

I'm sure it will cost not more than $9. And just the fan is enough you don't need to buy it with the heat sink unless there is something wrong with the heat sink because the fan with the heat sink is little more expensive.

step 5: If the fan is working fine there is another thing you can try. You can replace the heat sink compound, also known as terminal grease. How ever if you separate the heat sink from the mother board this compound have to be applied when fixing it again.

Heat sink compound is also can be bought from ebay.

Try this methods I'm sure your problem can be solved easily.

Thank you for reading, Have good days.

Find hidden Windows 7 themes on your computer

2012-06-25T21:06:00.002+05:30

hay guys don't want to waste time on finding themes online for your windows 7 desktop. go to the following url and find the hidden themes.

C:\Windows\Globalization\MCT

you may not find the MCT folder on the Globalization folder because it is hidden.

so go ahead and type \MCT at the end of the URL and have access to the folder.

or you can type the above full URL on the run and directly access to the folder.

extra:- you can see the hidden folders like this by deselecting the folder property, "hide protected operating system files" at the "folders and search option" menu.

Now go ahead and find the theme files and install them.

looking for a performance boost for game play?

2012-05-24T08:25:00.000+05:30

Game Booster is one of the best ways to increase your computer performance to play games...

click on the Start Boost button and you can see the percentage of the performance after the boost.. (next picture)

or you can switch to the game box by clicking on the Switch to GameBox button. there you can have a easy access to your installed games on your pc.

This is the game box view.... you can change more boost options by clicking on the configure button..

The basic theory of this boost is stopping some unwanted services for a game play for a wile.. as soon as you switch to the normal windows mood it automatically starts the usual services..

Have a perfect game play!

Code::Bloks, a compiler for C/C++

2012-04-27T21:16:00.001+05:30

you can download this program from http://www.codeblocks.org/downloads for free

You will be prompted with a Compilers auto-detection window:

Click on the File menu, and under "New", select "Project..."

The following window will come up:

Click on "Console Application" and hit the "Go" button.

Click next until you get to the Language Selection Dialog:

now you can select the language you want. and click on next

now give your project a title and the place to save your project.. and click on next

here you have to set the compiler.. and finish the wizard

now you are ready to code......................................

code, compile and enjoy.............

Thank you.....

aatha kandukara himau arane song lyrics

2012-04-27T20:44:00.002+05:30

Paalu rayakadi muhudu werale song lyrics

2012-04-19T13:29:00.001+05:30

How to deactivate facebook Account

2012-04-13T10:41:00.000+05:30

Goto Home --> Account Settings

Goto Security

Click on Deactivate your account

Now fill and click on Confirm to Deactivate Your Account

Nokia Phone Unlock, security code reset or update firmware

2012-02-25T09:59:00.001+05:30

It is is to Unlock/security code reset/update Nokia firmware.

1. Download and install Nokia PC Suit according to your phone modal.

2. Go to settings and add your phone by clicking Add more phones option you (may connect your phone via Bluetooth/Data cable but it is recommended to use the data cable)

3. It is recommended to backup your phone. because updating causes in resetting the phone.

4. Click update phone software icon (green box with a arrow),and it will download the Nokia software updater tool. if you cant find it go to Web>Check for Updates and Add-ons to have the icon on your pc suit

5. Close PC suit and install the downloaded Nokia software updater tool.

6. open Nokia software updater tool. (make sure your phone is connected to the computer).

7. Now you can start updating or re installing your phone software.

Important :- Do not let your phone to disconnect while updating. So it is better to check the internet connection and also make sure that you have a tide cable connection (phone) with your computer.

8. wait till it completes all the installations to disconnect the phone..

9. Now you can use the default security code 12345 , and also you will realize how many problems you have already solved.

wish you all the best with your Nokia........................

pairing Bluedio Bluetooth audio device

2012-02-25T09:25:00.000+05:30

Do you know? you may not pair your bluedio Bluetooth audio device just by turning it on and searching for the device.

So what you have to do is to click and hold the button on the bluedio device (which turns the device on) while searching it on your computer or phone.