Comparisons

The Infinity G35 is a sports car that was available as a coupe from 2002 to 2006. In 2007 it became available as a sedan and in 2009 it was replaced by the G37. The G37 comes as a coupe, sedan, or convertible. So other than those basic features, what else is different about these two models?

The main difference between the two models is the engine. Both come with a V6 engine, which for most people might sound like they both have the same engine. But car enthusiasts know better. The G35 holds a 3.5 liter engine with 306 horsepower that puts out 268 pound-feet of torque. The G37, by comparison, has a 3.7 liter engine with 328 horsepower that is capable of 269 pound-feet of torque. This obviously gives the G37 a little more power, but not so much more as to completely blow to G35 out of the water.

Both cars are available with 5 speed automatic overdrive transmissions. If you want to go with a manual transmission, the G35 has a 6 speed with overdrive while the G37 offers a 7 speed with overdrive manual transmission. This difference can be seen in the fuel economy of these vehicles, though it isn’t a huge factor. Both get 18 mpg in the city. Out on the open road, the G35 gets 23 mpg and the G37 25 mpg. Again, not a huge difference, but a slight win on the G37’s side.

Where the real difference comes into play is in all the extra gadgets. The radio and CD player in the two cars are almost identical, but the G37 offers an optional DVD player, unlike the G35. The G37’s navigation screen is a touch screen with the radio integrated into it. You can rip CDs or load music from a card or iPod into your Music Box Hard Drive in the G37 as well. Another cool feature of the G37 is the steering wheel controls that allow you to browse through your iPod.

Other extra features offered by the G37 is a backup camera, perfect for tight parking, auto tilt headlights, and laser guided cruise control. There is a NavTraffic feature which is advertised to warn you of upcoming traffic, though reviews on its accuracy have been mixed.

Brand new, the G35 retailed for $32,000 to $34,000. The G37 goes for anywhere between $33,000 and $37,000. Used, the G35 is now available for around $27,000. So if you want a fun sports car that fits in the mid-range luxury car class, the G35 will meet all you needs and save you a little money. If you want all the latest gadgets and coolest toys, the G37 is the car for you.

If you own a computer you will surely need cable connectors in order to get your appliances working on your computer. Cable connectors are pretty much a big topic nowadays since, for example, if you are transferring huge amounts of data from an external source to your own computer, you certainly wouldn’t like to wait around 5 hours for it to finish.

The Role of Firewire

The speed at which this data is transferred varies based on a large amount of variables, such as the computer itself, cable length, and so on. The most commonly known type of connection was the USB, which was widely used throughout the world. But, with the coming of Apple, a new type appeared called Firewire. Firewire was developed by Apple itself and it is a little more expensive due to royalties that the company receives on every purchase.

The two most common types of Firewire connectors are Firewire 400 and Firewire 800. One might wonder what the difference between these two is but in fact, it is extremely simple. The difference between these two is simply the speed at which they are able to transfer data. The numbers are referring to Mbps, which means that a Firewire 400 can transfer at the approximate rate of 400 Mbps, and the Firewire 800 connector is twice as fast as this.

As said previously, the speed varies depending on a lot of factors, and the speed of the connectors is certainly not going to be enough to guarantee a speedy transfer. For example, if you computer’s hardware is incapable of handling what a Firewire 800 is, than you won’t be able to transfer at its full capacity.

As opposed to USB drives that need to be connected directly to your computer, Firewire connectors might be connected to one another providing them length whenever you need to the cables to stretch out for a little bit more than what they were supposed to stretch out.

Use of Firewire 400 or 800

Firewire 800 is compatible with peripherals of a Firewire 400, which means that you can connect those peripherals to a port and use your Firewire 800 on a port meant for Firewire 400. These will require adaptors, but they are pretty much inexpensive considering that they will be saving you the trouble of buying a whole brand new computer. For example, some of these adaptors can be found out there on the market for just above $ 10 from renowned brands.

If those brands prove to be too expensive, however, you can search hard for an adaptor that will be at a lower price. As far as we know, it is possible to acquire a Firewire 800 to 400 for just as little as $ 4, which is almost next to nothing.

When you’re buying a new TV, lots of factors come into play. You have the size of the screen, sound quality, high definition, plasma vs LCD…the list goes on. And tucked in there somewhere is the number of hertz that your TV is capable of, which is also called the refresh rate. The two most common refresh rates out there today are 120hz and 240hz.

Unique Differences Between 120hx and 240hz

To really understand what the difference is between 120hz and 240hz, you first have to understand how filming a video works. Every movie you watch, no matter how big the budget, is essentially a flip book. That’s right, when you drew a little stick figure turning a cartwheel at the corner of your notebook, you were doing the exact same thing as blockbuster directors.

What I mean is, every movie is just a collection of static pictures. When those pictures get displayed on your TV at the correct speed, they look like moving pictures (hence, movies). The faster the picture moves, the smoother the action in the film looks.

When movies are filmed, the film is capturing a set number of pictures, called frames, for every second of action. This is called the fps (frames per second). Almost all movies are filmed in either 24 or 30 fps. So that means that every time you watch a movie you are actually watching 24 or 30 pictures move across your screen every second, right?

The Role of Hertz in Television

Not quite. This is where we get to 120 vs 240hz. Hertz is what we use to measure how quickly your television can change from one picture to another. So if you are watching a film shot in 24 fps on a screen with only 1hz, you can only display one of those 24 frames every second, which isn’t very good. If you had a 24hz TV, everything would be perfect because your screen would be refreshing at the exact same rate as the frames.

Except what happens when you watch a movie filmed in 30 fps? Now your 24hz TV is missing 6 frames for every second of film. But upgrading to a 30hz TV isn’t going to solve your problems because then you won’t be able to watch 24 fps movies. To explain why not, we’re going to move past 30hz to 60hz TVs.

60hz is perfect for watching 30 fps movies. The screen is refreshing 60 times per second, meaning it is displaying each frame twice since 30 divides evenly into 60. But 24 doesn’t, it goes into 60 2.5 times. Interpolation is a process which fixes this problem by inserting copies of 6 frames into the film to bring it up to 30 fps. This kind of words, but the action gets funny when it is manipulated like this. It no longer looks natural.

The solution to this problem is 120 and 240 hertz TVs. The reason these two refresh rates are perfect is that both of them are evenly divisible by both 24 and 30. This means that with either a 120 or a 240 hertz TV, you can watch both 24 and 30 fps movies without a problem. Get it? Good, because now we’re ready to start actually comparing the two.

What it Boils Down to

The basic difference between 120 and 240hz is that once is refreshing 120 times per second and the other is refreshing 240 times. A faster refresh rate typically means a clearer picture, but in these ranges it doesn’t make nearly as large a difference. A true film connoisseur might be able to identify a 120hz TV just by watching a movie on it, but your average television owner isn’t going to notice the slight loss of clarity compared to a 240hz.

So when we’re talking about watching regular, flat movies, the difference between 120 and 240hz really comes down to your own personal preferences. If you’re willing to spend some extra money to get the absolute best picture quality available, you’ll want the 240. If you’re willing to cut some corner to save a little money, you’ll most likely be perfectly happy with your 120.

Why mention flat movies? Because the rules change once you start watching things in 3D. TVs add depth to the picture by only showing half of each image to each of your eyes. That’s why everything looks so blurry if you’re not wearing the 3D glasses.

Instead of saying you only see half of each image, perhaps it’s better to say you only see half of the frames displayed. So on a 120hz TV, each eye is actually seeing 60 frames per second. Do you know why that’s a problem?

For exactly the same reason that 60hz TVs had to be replaced by 120hz in the first place. Because 60 isn’t evenly divisible by 24, you won’t be able to watch a 3D movie shot in 24fps on your 120hz TV. Or, to be fair, you can watch it, but some of the action might look too smooth and come across as unnatural.

A 240hz TV doesn’t have this problem. That is because when you divide 240 in half, each of your eyes is still watching in 120hz. Because 120 is divisible by both 24 and 30, you can watch 3D movies shot at either speed with no loss of picture clarity or manipulations of the film.

The Perception with Televisions

With TVs, as with most things, people tend to naturally assume that bigger means better. In this case they are both right and wrong. More hertz does mean a faster refresh rate, so technically a 240hz TV will have a better picture than a 120hz TV. But for most people, this difference is so slight as to be unnoticeable. Going with a 120hz TV will save you some money without costing you any real quality.

The exception to this rule is 3D movies. Because they work by dividing the picture in half, a 240hz TV is going to stay truer to the original action caught on film than a 120hz TV. Only in this case will you truly notice the difference between a 120 and 240 hertz TV.

Optima batteries are excellent for starting and powering motors of all kinds. They tend to last longer than other batteries and give you more power in a smaller box. This is due to the Sprialcell technology that is used in all of their batteries. But your Optima battery isn’t going to do anything for you unless you buy the right one. Optima batteries come in three main styles, denoted by the color of the top plate and known as Redtop, Yellowtop Bluetop batteries.

Types of Batteries

Redtop batteries are for use in most ordinary commuter vehicles. It has to be connected to an alternator in order to provide extra energy if it is needed. In addition to your standard automobiles, Redtop batteries can also be used in RVs, heavy equipment where its primary function is startup, and diesel vehicles with no aftermarket electronics.

Yellowtop batteries are designed for vehicles that have no alternators or higher than usual energy needs. Aftermarket additions are the most common reason Yellowtop batteries are needed. These additions include stereos, GPS, additional chargers, snowplows, and winches. Certain vehicles may require Yellowtop batteries even in factory condition, for example, minivans with electronically powered sliding doors. DVD players are another reason to use Yellowtop, especially if you will be watching DVDs while the motor is off.

Racing vehicles also use Yellowtop batteries. This is because they do not have generators or alternators, so all of the electricity used by the vehicle has to come from the battery. Vehicles modified for drag racing need Yellowtop as well. If you are driving a hybrid vehicle or an electric car, once again you will need a Yellowtop battery.

The final type of Optima battery is Bluetop. The Bluetop battery was originally designed for marine applications, which explains the color choice. It was made in two different styles, a starting battery which has a dark gray case and a dual purpose battery which has a light gray case.

Chosing the Right Battery

The starting battery should only be used when no deep cycling is needed. For marine use, this would be ideal for any boat in which the battery’s only job is to get the motor running. It can also be used in RVs under the same conditions.

If your boat has heavy electrical accessories or a trolling motor, then you need the light gray Bluetop battery which has extremely high cranking power. Again, the battery can be put in RVs if a simple starting battery is not going to provide sufficient power.

Optima batteries are very powerful and can last a long time, provided you match the right battery to the right vehicle. Make sure you understand your vehicle’s energy needs before purchasing a battery and you are sure to get the right one.

The first thing to know about Magic Jack is what Magic Jack really is. Magic Jack was created to help people reduce their high cost phone bills. It is a device that is plugged into a USB (a connection cable used for digital cameras, printers canners, etc. to connect to your computer hard drive) attached to the computer (or in some cases a router with an applicable port) and allows for users to make unlimited calls to the United States and Canada.

Getting Started with Magic Jack

The basic form of Magic Jack (the Magic Jack Go) offers a year of telephone service for around $35 yearly (and has offers for five years at $100 for the full five years). There are no monthly bills (you can pay monthly if you choose, but they aren’t required for monthly payments), there is a mobile application that you can use on your phone, tablet or other mobile style device, and it offers both home service and business service. It has also been awarded the Frost & Sullivan Consumer Choice Award.

The Magic Jack Plus offers all of the options of the Magic Jack Go, but also includes very low international calling rates (for the entire world), free voicemail options (for both home and business services), and gives caller ID options for both as well. There is also an option for free call forwarding and call waiting (if you are on more than one call). Magic Jack Plus also comes with free 411 calling and no monthly bills either! This version of Magic Jack runs about $40 for a six month period, and about $300 for a five year service contract.

A Look at Both Versions

Both versions of Magic Jack offer crystal clear calling, and one of the best features is that you don’t have to change your phone number to be a customer of Magic Jack Go or Magic Jack Plus. You have a monthly bill option or a pay in full option for both services. The five year plans offer payment options for monthly, or yearly or pay in full. Both offer the Magic Jack device for plug in to your computer USB port or router, an Ethernet cord for your connection, a power adapter and a USB extension cord.

Another little bonus that both of these Magic Jack options is that any local, long distance and international call to another Magic Jack user is absolutely free!

Both of these options are excellent for anyone to use. There are plenty of options available, and when you consider all the extras you get, Magic Jack is a best bet for you. All you have to do is consider which one is the better choice for you!

The Xbox 4GB Console has a built in Wi-Fi that is used for easier connection to the entertainment world on Xbox LIVE. The TV stream and HD movies can be seen in an instant. The 4GB is ready for controller-free experiences of Kinect. This console is super-quiet and sleek and also comes with a matching wireless controller.

Understanding the Different Versions

The 250GB version is one that improves on the original and has a sleeker design with better connectivity. It has a curved design which is in sleek black. This appearance is one that is considerably upgraded and is more energy efficient and is also quieter. The 250 GB makes you forget all about issues that deal with hard drive save-space. This console allows you to play all your favorite Xbox 360 and Xbox titles, you are also able to connect to the Internet as well as compete against others through a subscription to Xbox Live. You can also enjoy older titles by way of the Xbox Live Arcade.

Key Differences

The following are the differences between the Xbox 4GB console and the 250GB Xbox console:

1. The versions of the systems is a major difference between the 4GB and the 250GB systems. The 250GB allows you more space for downloading videos, movies and any other rich content as well saving the contents as compared to the 4GB console. However, to make the 4GB console save slightly more contents, you will need to buy some external hard drives to the box.

2. The 4GB has a size limitation which poses problems like the inability to install video games which require more than one disc to play, impossibility in downloading DLC content overtime , freezing of games that have been played overtime and have scratches as well as problems which happens when it comes to storing media files with time and the regular updates that are released by Microsoft to help in patching the box reducing the hard drive space available for use. These limitations do not occur in the 250GB.

3. When it comes to design, the 250GB has a slim built-in hard drive which has a smooth shiny, black finish. This has a disadvantage in that it can become dirty quickly whereas the 4GB version is a matte black case which does not easily become dirty.

4. For casual users of the Xbox live, buying the 4GB version may be a good idea the only problem that will occur will happen in case a user would like to download DLC contents or install games to the hard drive.

5. The 4GB Xbox is incompatible with some games as compared to the 250GB.

6. The 250GB has a hard drive and the 4GB has a flash memory. Flash memory may be better in some aspects than hard drives like faster read rates, low noise, low power consumption and no heat generation. However, the main disadvantage of the flash memory is its price.

Finally for the Xbox users who need a lot of storage space, the 250GB would be the best option and for those who need the Xbox just to play and do not need storage space, then the 4GB will be a better choice.

Most people don’t know the difference between an Ultrasound and a Sonogram. In fact, the vast majority of people consider them to be the same thing. While in some aspects they are similar, they are two different techniques and procedures. Due to the fact that so many people think that they are the same, it is often a confused and misinterpreted term in the medical field, both by medical professionals who lack experience and patients who are going in for testing. Here is a simple understanding of which is which and how they differ.

What is an Ultrasound?

Ultrasound is defined as vibrations that are of the same nature physically as sound vibrations, but are above the frequency which we as humans can hear. An example of an ultrasound is the application of vibrations (as defined above) to the body to project internal views (such as when a woman wants to know the sex of her baby before it is born). A sonogram is the use of ultrasound to produce an image (such as the image of the baby). In the simplest of terms, images created in a sonogram are the product of ultrasound technology. One is the product of the second, and this is the reason that any people get confused with which is which.

Most people think that ultrasound is only used to produce a sonogram of a baby in the womb. There are plenty of other tests that use sonograms and ultrasound technology. The use of ultrasound technology can also be used to give sonogram images of internal organs and the tissues in the body. While sonograms and ultrasound technology is primarily used in gynecology, it has other vital uses in the medical field.

Since sonograms also include images of the tissues and organs of the body, these two technologies are used in cardiology (studies of the heart), vascular medicine (the veins of the body), ophthalmology (studies of the eyes and sight), and even radiology (x-rays). Most of these areas of study of medicine don’t use sonograms and ultrasound technology as invasive procedures, and this relieves stress to the patients and allows for more available testing to be done.

To Sum it Up

Ultrasound is the sound pressure at a higher frequency than we can hear so that sonograms can be produced. Ultrasound is a general term of medical technology, while a sonogram is the more specific application of ultrasound technology (primarily used in the gynecological field). Ultrasounds and sonograms are generally non-invasive procedures and will not cause harm to patients, making testing more accommodating to patients and more reliable for doctors.

For more information on ultrasound technology and sonograms, consult your doctor or other medical professional.

When you’re looking for a protective case for your smartphone, two options immediately stand out. Otterbox and Lifeproof own the market for smart phone cases. When you’re looking at comparable cases from both brands, they’re pretty even on protection. Both protect your phone on drops of over 6 feet and both will keep your phone safe from water damage even if they are submersed for half an hour. So what other features come into play to make one better than the other?

Making a Choice

One of the first things to consider when choosing between these two cases is how often you pull your phone out of its protective shell. If you’re content to leave your phone in there, then this is a moot point. But if you’re constantly pulling your phone out, you might want to lean towards the Lifeproof case. Otterbox is much harder to pull apart. On the other hand, the reason Otterbox is so much harder to open is because it gives extra protection to your phone.

Otterbox does not worry about looking pretty. It is all about protecting your phone with giant fenders all over the place. This does make your smartphone pretty invulnerable, but it also makes it a lot thicker and much heavier. Lifeproof still does a pretty good job of keeping your phone safe while still holding to a reasonable size.

Another feature of the Otterbox is a built in screen protector. This thin film helps prevent scratches on your screen. It’s thin enough to keep your touch screen almost as responsive as a bare screen would be. Lifeproof does not offer any screen protection. Because the screen itself is waterproof, this does not affect that feature of the case. While this does leave you open to scratches on your screen, it also keeps you in direct contact with your phone, which means no trouble with your screen not picking up your commands.

Differences with Lifeproof

The Lifeproof case does have some extra features that help contribute to its popularity. The best of these features is its ability to act as a subwoofer. When listening to music through your iPhone’s speakers, this case will improve the bass and mid-frequency sounds.

The downside to Lifeproof is that it is limited to iPhone users. If you are looking for something to protect your Android smartphone, they have nothing for you. Otterbox does sell models that fit Android phones.

Both Lifeproof and Otterbox sell quality cases that will keep your phone safe from most accidental damage, including water submersion. If you are looking for serious protection with no frills, especially for working in construction zones and other job sites, then the Otterbox is most likely the choice for you. If you’d like the protection without a lot of extra bulk and a few extra features, then you may be further ahead with Lifeproof.

If you’ve decided to buy your first DSLR camera, chances are you don’t want to go for top of the line right off the bat. There’s a lot to be said for starting small and working your way up, or even just staying where you are. For the amateur photographer, the entry level DSLR camera is going to do everything you ever need it to.

Because you’re probably planning on keeping this camera for a long time, it’s smart to take the time to really think about what you need in a camera. The Canon T3 is their basic, entry level camera and a smart place to start on your photography hobby. If you’ve been looking at it, the T3i has probably also come to your attention. The two cameras have a lot of similarities, but they also have some significant differences.

The T3i runs about $150 more than the T3, which may lead you to jump to the conclusion that it’s a better camera. And it is, but then again it isn’t. If the T3 will fit your needs, then there’s no reason for you to shell out the extra money for features that you’re never going to use. Here’s a look at the main differences between Canon’s two basic models to help you figure out which one you need.

Megapixels

Everybody knows that more megapixels are better. So at a first glance, the T3i’s 18 megapixels give it an edge over the T3 with 12.2. But there’s an excellent chance that you have no need for 18 megapixels. Take a minute to think about what the largest print you ever get is. For most people, 8×10 is about the biggest you’ll ever go. The T3 can print at that size with no less of picture quality. So while the T3i will print bigger pictures at a higher quality than the T3, in all likelihood you’ll never actually print anything big enough for that to become an issue. Save yourself the money and stick with 12.2 megapixels.

Autofocus

In this section, we’re mostly going to talk about aperture. If that means absolutely nothing to you, then you should be good with the T3 and you can move on to the next section. If you have a lens that will fit Canon’s digital models, see what it’s maximum aperture is. For fast apertures, like f/2.8, the T3i will be able to focus much better.

Just because you have a lens with an f/2.8 aperture doesn’t mean you need the T3i, though. Think about what kind of pictures you’ll be taking. If you want to capture your kid’s big sports moments, the T3i has a more sensitive autofocus that is going to be able to keep up with action shots. Perfect for moving targets like kids and animals. If you’re planning on taking more landscape shots, however, that’s not going to be such a big issue. The T3 will have no problem keeping up.

LCD Screen

On the T3, the screen is mounted to the back of the camera and there it stays. The T3i has a vari-angle monitor that can be swung away from the camera and then rotated. For the most part, this is a luxury. It doesn’t affect your picture quality whatsoever. But it can make getting the perfect shot much more comfortable. Pictures are always more compelling when the camera and the subject are on the same level. For shots low to the ground, this means lots of squatting or just lying down. With the vari-angle monitor, you can swing the LCD screen up so that all you can see what you’re capturing while still standing up. Like I said, it’s a luxury, but one that many people consider worth the price.

Sensor

The sensor is the part of the camera that does the actual work of making a picture. The sensor collects the light that the shutter lets into the camera and turns it into a photograph. Single lens reflex problems have always had the problem of getting dust on the sensor. That dust sits there, blocking the light and affecting the final picture.

Before digital cameras, the dust would settle onto the film. That meant it might mess up one picture, but once the film advanced the dust went with it. In a digital camera, the dust just sits there for picture after picture.

It is possible to manually clean a sensor. It involves taking a few things apart, which can be done if you are very careful. Once the dust is gone and the camera is reassembled, you’re back in business, assuming that everything got put back where it was supposed to be. If you’re very comfortable with your camera, this is a viable option for you. Mostly, it’s not a good idea to mess with your sensitive electronics too much.

The T3i fixes this problem by having a self cleaning sensor. The camera uses ultrasonic vibrations any time it is turned on or off to knock any dust on the senor off. This gives it a clear advantage over the T3, which has no such feature. These blemishes aren’t going to be severe enough to ruin your picture, so this may not be the deal breaker it sounds like. But if you’re willing to pay extra for a self cleaning sensor, the T3i gives you that option.

The T3i has some extra qualities that, if you’re willing to pay for them, might make your life a little easier. On the other hand, the T3 will give you excellent picture quality for a very reasonable price. Fewer features also equals longer battery life, which can save you a lot of frustration on the family vacation.

Canon makes quality cameras. Both the T3 and the T3i are excellent entry level cameras for the amateur photographer who is just getting into DLSR. Don’t be seduced by the higher numbers of the T3i; be realistic about what features you will or won’t use. Whichever way you make up your mind, you’re getting a good camera.

Choose the right graphing calculator can be difficult. You will find a plethora of features that you will need to sift through. When looking at graphing calculators that are made by Texas Instruments most people think that all of them are the same. If you compare most models side-by-side you will find that there are some subtle differences. Most people know that these calculators are a match when it comes to financial functions, graphing capabilities, and scientific functions. Let’s take a look at the TI-84 Plus and the TI-84 Plus Silver Edition.

Common Features

The TI-84 Plus a TI-84 Plus Silver Edition both come have some basic built-in functionality that are synonymous in TI-84 models.

• The user has the ability to add a background image to their graphs.
• Preloaded applications include: Cabri Jr, StudyCards, Vernier EasyData, language localization, and more.
• The user has the ability to connect the calculator by USB.
• The user can choose from 15 difference colors for their graphs.
• The user is able to change the style an color of the axes and grids on graphs.
• The calculator has a catalog syntax help.
• There is an alphabetical catalog of all operations in one menu.
• The advanced functions can be accessed through the display menu.
• The user can define, save, graph, and analyze up to 10 graphing functions at one time.
• Displays up to 10-digits plus 2-digit exponents answers with a 14-digit accuracy on real and complex number.
• The user can define list names and store up to 999 elements.
• The calculator has 17 interactive zoom features.
• The user can choose from 8 different graph styles; this differentiates the look of each graph drawn on the calculator.
• The user has the ability to split the screen horizontally and vertically.
• The user has the ability to view the table and the graph on the screen side-by-side.
• The ability to store up to 10 – 50X50 matrices which include: inverse, transpose, augment, determinant, elementary row operations and, reduces row echelon form.
• Matrices can be converted from lists an vice-versa.
• Each device comes with a one year limited warranty.

The TI-84 Plus and the TI-84 Plus Silver Edition differ because the latter has more memory. The TI-84 Plus Silver Edition has 3.0 MB of ROM versus 480 KB on the TI-84 Plus and 154 K RAM versus 24 K RAM on the TI-84 Plus. This amount of memory allows you more space for graphing handheld software applications. You can also change the face plate on the TI-84 Plus Silver Edition to a different color plate. The TI-84 Plus Silver Edition also has a rechargeable battery whereas the TI-84 Plus takes 4 AAA alkaline batteries.