Sony Electronics has taken the wraps off a remodeled Vaio P Series way of living P.C. that sports a variety of built in, one-touch buttons for enabling users to straight away access the web, adjust screen resolution or even tune-up their machines. Approximate dimensions of a business envelope and tipping the scales at only 1.4 pounds, the small device has industry observers speculating that the design platform will help Sony launch a Web tablet to compete with Apple’s iPad. One explanation is because Vaio P users will be well placed to surf the Web without a keyboard or mouse with the trackpad, as well as the right and left click buttons, which have been built right into the LCD. Measuring 9.6x 0.78×4.7 inches, the Sony Vaio P sports an eight-inch, ultra-wide LED display with a resolution of 1600×768-pixels and an 83-key Qwerty-keyboard.

Under the hood, the new machine integrates a 1.6GHz Intel Atom processor and Intel graphics media accelerator, a multimedia memory card reader and SD memory card slot, two USB 2.0 ports, camera and microphone. Also on tap is a solid state drive with up to 256GB of computer memory and 2GB of Ram Memory. The communications capacities aboard the Sony Vaio P include built-in Wi-Fi (802.11b/g/n) and Verizon Wireless Mobile Broadband radios. Similarly, the new device features inbuilt real-time GPS, together with a Bluetooth radio for streaming audio in stereo to compatible speakers and headsets.

On the software side, the Sony Vaio P ships with Windows seven Home Premium but can also be ordered with Windows seven professional. Sony’s new machine also comes with Norton Internet Security 2009 as well as a 30-day trial of Microsoft Office 2010 Starter. But what really sets the new device apart from the pack is the range of one-touch buttons that provide users with single-click access to software. Just like on Sony’s Playstation 3 and Bravia HDTV consoles, Sony Vaio P incorporates a one-button quick-boot option called Instant Mode that guarantees to supply fast access to the Web, e-mail and pictures. Many users will appreciate the fact that the Sony Vaio P can be turned on its side to modify the viewing alignment from the conventional computer landscape mode to a portrait mode. This will make the device better for reading eBooks, as an example, or viewing vertically orientated Web pages.  So maybe the iPad has some competition out there.

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We just added the Dell Dimension E520 Memory to our products list on UpgradeComputerMemory.com.  Check it out!

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The typical computer user’s ideal laptop would fall into one of the two most popular categories – ultraportable or mainstream. Ultraportables are pretty and trim, generally weigh less than 4 pounds, and can be carried almost anywhere. Mainstream laptops deliver a good balance of portability and power. Between the different manufacturers, models, and sub-models, consumers are faced with a variety of laptops to choose from, varying greatly in price, features, design, and performance.

Performance, dictated by the quality and power of the components, was once the major factor in choosing a mainstream laptop. For ultraportables, performance was not a selling point, because the small sizes did not permit parts that ran faster. Today performance is less of an issue, so most laptops of either type don’t need to be pushed to their limits. Although the gigahertz rating and the amount of RAM included in a laptop are still important purchasing factors, other elements like looks, multimedia features, and cheaper prices are more significant than ever to consumers. Here we’ll look at some of the hottest ultraportable and mainstream laptops on the market, and show how they are selling more than just power and speed.

Not too long ago, laptops were considered underpowered, poor relations of desktop computers. Yea, they were a great portable solution to moving your work around with you, but nobody expected them to be powerhouses. Usually, buyers found themselves paying a premium of $2000 or more for mediocre components, limited features, and so-so battery life. As far as styling went, you could forget pretty. Most laptops came in black, or black, like the old Model T Fords.

Times have changed! Now, laptops have become the primary computer for many people (I am writing this article on my laptop which is my work computer), and buyers demand more. The market has responded, and manufacturers are now offering laptops with a wide range of features for under $1000. If the laptop is selling for over $1500, it had better have a high-definition optical drive. Mainstream systems are packed with cool and powerful components but now rarely weigh over 6 pounds, while the ultraportable laptop field is bubbling with innovative features, from hyper-thin optical drives and LED backlit screens, to super small hard drives. Design-wise, laptop manufacturers are pulling out all the stops, with curving chassis, innovative alloy frames, and a plethora of color choices.

Mainstream laptops offer the best blend of features and portability. They used to be 14 inch screen models with limited resolution, but now offer high resolution screens in a variety of formats and sizes. Using smaller components and 13.3 inch widescreens is making the units lighter,, and even 15.4 inch widescreens can be used without going over the 6 pound level. Resolutions are now being advertised as “HD ready,” where the most generic resolution meets the 720p criteria.

Almost all mainstream laptops now offer built-in web cams. When is comes to still pictures, webcams give poor resolution compared with most digital cameras, but that doesn’t really matter because they are most useful for videoconferencing. Some units are even offering fingerprint readers for personalized security. And today’s mainstream laptops can utilize a single hard drive that can hold up to 320GB of data.

Whichever you decide on, a sleek ultraportable like the new Apple MacBook Air, or a mainstream laptop like the HP Pavilion dv6500t, make sure to get the maximum amount of RAM, either from the factory, or aftermarket from a reputable seller, and you will be happy with your purchase for a long time.

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It has been a buyer’s market for premium DDR2 memory lately. Your choices range from modestly over-clocking memory modules, which command only a slight premium over value memory, to cutting-edge modules with high heat spreaders that can hit clock speeds up to 533 MHz (DDR2-1066) and require voltages higher than 1.8 volts. Recently, we’ve seen DDR2 modules from Corsair rated to use as much as 2.3 volts.

What are the advantages of premium memory? High-end DRAM chips are bin-sorted, a term used by manufacturers to refer to sorting chips that can run at differing speeds into “speed bins” which hit higher frequencies and voltages. These chips can run at lower latency timing than standard DRAM. Finding exactly the right timing settings can be tough. It’s often a trial-and-error process that involves many test, reset, and reboot cycles.

Most standard or value-grade memory won’t run at the lower latency at which premium-grade memory runs. For DDR2, that currently means latencies lower than the standard 5-5-5-15 timings.

If DDR2-800 5-5-5-15 doesn’t make sense, then read on to learn how to decode it and why it should matter to you. But first let’s clarify how memory works.

Memory accesses don’t happen in one step. Memory is laid out on a chip in rows and columns, which require repeated pulses of electricity, referred to as “strobing,” to reach each location. When memory is accessed, each cycle of strobing takes a fixed amount of time, explained as follows:

tCL Column address strobe (CAS) latency; or the number of clock cycles required to access a specific column of data. (The t prefix refers to time.)

tRCD Row address strobe (RAS)-to-CAS delay; or the number of clock cycles needed between a row address strobe and a column address strobe.

tRP RAS pre-charge; or the number of clock cycles needed to close one row of memory and open another.

tRAS The number of clock cycles needed to access data in a specific row of RAM.

Now let’s break down the particular DRAM label above. 800 is the effective clock speed in megahertz. That’s the actual clock speed multiplied times data per clock cycle (200 MHz [for DDR2-800] X 4 [4 samples for DDR2 per clock cycle]). DDR2-800 has a maximum bandwidth of 6.4 GBps. “5-5-5-15” is referring to a tCL of 5, tRCD of 5, tRP of 5, and tRAS of 15.

Because latency is measured in clock cycles, the smaller the numbers, the faster it is. Therefore less time is required for memory accesses. The time is measured in nano seconds, with a typical system making millions of memory accesses every second. Latency and memory speed trade off with each other. For example, the same DDR2-667 memory module can run at 333 MHz with latencies of 5-5-5-15, or at DDR2-533 speed at 266 MHz with latencies of 4-4-4-11. Since higher clock frequencies represent smaller time intervals, the total time is basically the same for both these speed settings.

The serious over-clockers out there will want to push their memory speeds up to 1,100 MHz or more. Over-clockers also need to run their memory at higher voltages, so it’s important to have a good motherboard with a beefy voltage regulator, and a BIOS setup that lets you tweak your memory settings. For an example of a motherboard that allows very high memory clockings, look up the eVGA nForce 650i Ultra motherboard.

What you get with premium memory is the ability to run at higher clock speeds and lower latencies. If your applications are sensitive to memory performance, premium memory can pay off. Games, 3G rendering, and media trans-coding are all sensitive to memory latency. A typical users’ regular web browsing, office applications, and streaming media typically are less sensitive and will work just fine using standard RAM memory.

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DDR3 is the next-generation evolution of DDR and newer DDR2 memory technology that will break the Gigahertz speed barrier for memory speed.DDR3 memory comes with a promise of a power consumption reduction of 30% compared to current DDR2 modules, due to DDR3′s 1.5 V supply voltage, compared to DDR2′s 1.8 V or DDR-1′s 2.5 V. This supply voltage works well with the latest fabrication technology used for most DDR3 chips. Some manufacturers further propose to use “dual-gate” transistors to reduce leakage of current.

DDR3 is an industry standard technology defined by JEDEC, who is the semiconductor standardization body of the Electronic Industries Alliance. About 300 member companies representing every segment of the computer memory industry actively participate to develop standards to meet the industry needs.

DDR3 memory features higher data bandwidths, faster speeds, lower voltage and power consumption, and improved thermal performance. Lower power consumption will allow longer battery life for laptops. DDR3 memory is engineered to support the next-generation quad-processors that require higher data bandwidth to enable higher levels of performance.

The main benefit of DDR3 comes from the higher bandwidth made possible by DDR3′s 8 bit deep pre-fetch buffer, whereas DDR2′s is 4 bits, and DDR-1′s is 2 bits deep. Theoretically, these modules could transfer data at an effective clock rate of 800–1600 MHz (using both edges of a 400–800 MHz I/O clock), compared to DDR2′s current range of effective 400–800 MHz (200–400 MHz clock) or DDR-1′s range of 200–400 MHz (100–200 MHz). To date, such bandwidth requirements have been mainly found in the graphics market, where fast transfer of information between frames is required.

Prototypes were announced in early 2005, and products started appearing on the market as of mid-2007, in the form of motherboards based on Intel’s P35 “Bearlake” chipset and memory DIMMs at speeds up to DDR3 1600Mhz. DDR3 launched for these special Intel chipset-based desktops in July 2007, and notebook and server platforms will follow in 2008 and 2009. AMD’s roadmap shows they will also support DDR3 as the new memory technology continues its market ramp-up in 2008.

DDR3 memory modules come in 1066MHz, 1333MHz and 1600MHz speeds (data rate), with 1066MHz and 1333MHz DDR3 launched in 2007, with 1600MHz DDR3 expected in 2008. This compares with DDR2 speeds of 533MHz, 667MHz, and 800MHz.

DDR3 DIMMs have 240 pins, the same number as DDR2, and are the same size, but are electrically incompatible and have a different key notch location. This will keep end users from installing an incorrect part into a DDR2 or DDR3 motherboard.

GDDR3 memory, with a similar name but completely different technology, has already been in use for several years in high-end graphic cards such as ones from NVIDIA or ATI Technologies, and as main system memory on the Microsoft Xbox 360. It has sometimes been incorrectly referred to as “DDR3″.

DDR3 will be available on desktops, servers, notebooks, telecommunications/networking and other platforms in the following form-factors:

• Unbuffered DIMMs, ECC or non-ECC
• Registered ECC DIMMs
• MicroDIMMs
• SO-DIMMs
• Custom Modules

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Diagnosing Problems with your Computer Memory

When you’re using your computer, you expect that it will work whenever you want it to. You expect to be able to turn on your computer, do what you need to do, and have a good experience overall. But when things begin to happen to interrupt your computer time, this is not only frustrating because your computer or laptop isn’t working, but also because you don’t know exactly what the problem is.

For many computers, problems can stem from memory troubles. If you’ve had your computer for a long time, you might want to look out for these common memory problems:

The blue screen of death

If you’re going to boot up your computer or you’re in the middle of an activity and you get the ‘blue screen of death’ on your PC, you might be having troubles with the computer memory. When this screen happens once and then doesn’t seem to happen on a later boot up, you will want to bring your computer into a repair shop anyway to get the memory looked at. While it might seem like a minor annoyance, it can become a major problem if you use your computer for important tasks. Make sure that you backup all of your files and programs if you can get back on the computer.

The computer acts strangely

While this isn’t a very specific diagnosis or symptom, any computer behavior, like a blank screen for no reason or crashing more often than usual and for no reason can also be signs of a memory issue. If you’ve been running certain programs together without any troubles before, but suddenly your computer shuts down whenever you try, it may be a big sign of memory troubles.

Likewise, if you notice that your computer can’t handle multiple big memory programs at the same time, it might be a sign for an upgrade or a replacement of your current memory. Things like video games and video editing applications are the biggest programs you have, so this is where you might see these kinds of problems. If your computer crashes as you use these programs, you need more memory.

The computer just won’t start

While it might seem like your computer is simply dead, faulty memory can also cause your computer to not boot up. Replacing the memory is much cheaper than replacing the computer, so try that first before you completely give up. If you hear long beeping noises when you try to boot, that is a sure sign that the memory is having troubles.

The screen is distorted

When your computer is having troubles showing the graphics on your screen – it might also be a sign of a computer memory issue. Of course, it could also be that your video card needs replacing, too.

What can you do?

The good news is that memory problems are generally easy to fix with new memory. But if you’re not sure what is wrong with your computer, you may want to take it to a certified computer repair shop or send it back to the manufacturer. They will:

• Test the computer
• Try replacing the memory
• Look at the rest of the circuitry
• Check the connections
• Test individual components

When the testing is done, the repair center should be able to tell you what is going on with your computer and what needs to be fixed.

Now, you can simply try to replace your memory to see if that does the trick, but if something more major is happening, you might want a qualified repair specialist to deal with the issue. However, you can have your computer checked out first and then do the memory repair on your own if they tell you that the memory is the issue.

Visit Upgrade Computer Memory to find the correct memory upgrade for your computer. Click here to view this blog in PDF.

Tags: Diagnosing Memory Problems

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3 Tips to Remember When Doing a Memory Upgrade on your Desktop

A desktop computer might be the best investment you make for your business and for your family. By providing you with the ability to create professional looking documents, access to the internet, and general gaming and music functions, you can not only broaden your world, but you can also keep up with the fast pace of information. If you’ve had your computer for a while, you may begin to wonder what else it can do for you and for your life. And that’s where many people start when they think about adding memory.

Why You Need More Memory

Just as we all wish that we had a more efficient memory system in our brains some days, our computers wish for more memory to improve their function. RAM, or random access memory, is essential for storing programs and information when we are working on the computer, making it easier for us to access this information when we need it. The more programs we need to access, the more memory we need. As the rest of the computer is bogged down with stored programs and documents, the computer needs to rely on the RAM more and more to perform basic functions.

As this RAM depletion occurs, you might notice that your computer is running slower or having troubles with basic programs. Your computer might crash more often than it ever has or it may freeze in the middle of a task. If you didn’t have a lot of memory to begin with when you bought the computer, chances are good that you still don’t have a lot of memory to work with – and you need to correct this.

The good news is that you can actually do your own memory upgrade on your computer to make things move more smoothly for you. Here are three tips to help you with your first memory upgrade.

Tip #1: Always Check on How Much Memory You Have and Determine How Much you need

Just like you can’t screw two light bulbs into one socket, you can’t always put a lot of memory into a desktop computer. Some models simply aren’t equipped to handle higher amounts of memory. But they can often be built up to about 1GB average, which is a fair amount of total memory for a basic desktop computer.

To find out how much memory your computer can handle, you can refer to your user’s manual to see where the computer lists the memory capability. If you can not find it here, you might want to go to your computer manufacturer’s website to see if they can give you directions from here. The help desk for your brand can also help guide you.

If your computer can handle upwards of 2gb, you may want to try to determine how much you need. In many cases, you won’t need to max out your memory. You will just add what you need. Take a look at how you use your computer. If you are a normal computer user, you may only need to increase a little. If you play high-end computer games or are into media editing, you may want to add more.

Tip #2: Always Buy from a Certified Memory Seller

It’s very tempting to buy memory from someone that is selling it for a low price. When shopping for memory you will see many retailers and various pricing. Remember to check that the product you are buying is brand new and graded A. There are many retailers that often offer Value or Salvage RAM. While this type of memory may be less expensive, it is not brand new or graded A. Buying from a cheaper seller can often result in malfunctioning equipment as well as a loss of the money you paid for it.

Tip#3: Always Read the Directions

Installing memory into a computer is actually quite simple, if you read the directions. Your computer manual should have instructions on how to install memory. Here are the basic tips:

• Turn off and unplug your desktop
• Press in the power button to discharge any electrical charge
• Touch a metal part of the tower to discharge electricity
• Open up the tower, and locate your memory slots.
• Push in new memory until it ‘clicks’
• Put tower back together and turn on

Visit Upgrade Computer Memory to find the correct memory upgrade for your computer. Click here to view this blog in PDF.

Tags: Upgrade Desktop Memory

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What is RAM and Why is it Vital to your Computer’s Performance?

Also known as Random Access Memory, RAM is the lifeblood of your computer’s power. But when you’re newer to computers or you simply don’t understand how this piece of your computer works, it might not seem like an important piece to learn about. However, if you’re ignoring the presence of RAM, you’re cheating yourself out of a superior computing experience. Here’s what you need to know.

Defining RAM, the Easy Way

The invention of RAM as a way to store information was revolutionary in its beginnings. While tapes and other storage systems used to be in computers, they were often slow and hard to access in a quick fashion. You might be able to get to the stored file that you wanted, for example, but the computer would need to go through yards of tape before it found the exact file that you wanted. Things used to be stored in order, which made sense at the time, but RAM made things better.

With RAM, pieces of memory are stored at random intervals. This might seem to make things more difficult, but it actually helps. While the pieces may be stored in a random order, they can also be accessed in a random order, no need to sift through irrelevant information to find what you’re looking for. This creates a faster system of information gathering, one that we are all accustomed to now.

What’s also innovative about RAM is that there is no physical storage of the data, which allows it to be accessed quickly, as well. But at the same time, this also means that data you store on RAM is going to be erased when you turn off your computer. This is not a bad thing, however. It simply allows the drive to be able to continuously store new information to be quickly accessed when you need it – i.e. temporary internet files, files you are working on that have not been saved, etc.

Why RAM Makes Your Life Easier

Though it’s clear that RAM allows you to access files more quickly, what you might not realize is what this means in a real life setting.

Take, for example, the idea of working in different programs in your computer. If you have your internet connection up as well as a few document files, your computer is storing these pieces of information in the RAM portion of your computer. This is allowing you to move from place to place without losing any information in the process. If you have more RAM, you will be able to open more pieces at the same time, and if you have less RAM, you may have troubles moving from program to program.

Most computers and laptops will come with a fairly decent amount of RAM that will allow you to work in word processing programs and email programs quite easily. However, if you need to access larger programs like a video making program or a design studio system, you need to have more RAM in your computer to help you perform the functions you need to without problems.

What You Might Want to Know

Of course, everyone wants to have a computer that runs faster and faster, but at what cost? RAM is expensive to add to your computer if you already have a computer in your home. You need to buy certified pieces of memory from your computer manufacturer that will allow you to install them on your own or with their guidance.

You can also purchase a computer with the higher amount of memory already installed, but this also comes at a premium price.

Another thing to consider is that many computer CPUs or central processing units are unable to handle higher amounts of RAM due to their age. Older computers are simply not equipped to handle large amounts of memory as they can not sync all of the processes in the computer to still function well. This is simply something to keep in mind if you have a very old computer.

The fact of the matter is that adding RAM is the best way to improve the function of your computer until you can afford to buy a new model. Most computers will allow you to upgrade to about 1 to 2 GB of total memory, allowing you to run a number of functions with ease. However, there are other brands of computers that are beginning to offer 4GB and 8GB of RAM to help you run highly complicated programs.

For the home user, more memory than 2GB is generally unnecessary. Unless you’re using a lot of memory intensive programs, it simply is like having too big of an engine in a smaller car.

Visit Upgrade Computer Memory to find the correct memory upgrade for your computer. Click here to view this blog in PDF.

Tags: RAM

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Understanding the Different Types of Computer Memory

Unless you have been living under a rock for the last 20 years or so, you are already aware of the tremendous strides that have been made in computer technology. In a relatively short amount of time computers have gone from being the size of a room, to the size of the palm of your hand. While getting smaller and more compact, they have also become more effective and efficient at their functions. That doesn’t mean that owning and operating a computer means you know exactly how each of the components works.

One of the least understood aspects of a computer’s operating system and function has to do with memory. Many people assume that their computer only has one kind and that it has unlimited space available. When their computer begins to run sluggishly or not at all, many are surprised to learn that the problem is the system’s memory and it is easy to fix.

Before you are forced to learn the hard way about your computer’s memory, let’s discuss some of the different types of memory and their functions. The two most often recognized types of memory are RAM and virtual memory. RAM stands for random access memory. This is the type of memory that is responsible for “remembering” the details and programming of the various types of software on the computer. Each computer system is unique in terms of how much memory it has. The misconception among computer illiterate people is that this type of memory is unlimited, when in truth it’s a common misconception. When RAM memory is full, the computer immediately moves given information to the virtual memory. Since virtual memory is intended to be a temporary storage area, if more RAM isn’t added or space freed up, your computer will begin to run more slowly and programs and information may be lost or inaccessible.

Another type of computer memory is ROM or read only memory. This type of memory comes into play whenever you shut down or restart your computer. Any data you have on your system or are working on is immediately saved to this memory. When you start your system the ROM performs a power on self test or POST, to make sure all of your software and programs are working as they should. An important aspect of this test is the built in memory controller. With this method, your computer makes sure there aren’t any errors in the memory chips.

From the ROM section of the computer’s memory, the basic memory component BIOS does its job. This is where the most basic actions of the computer are controlled. In the computer world, it is known as the input/output system. The BIOS controls information about the various boot sequences on the computer, storage devices, and security features. It also keeps track of the system’s plug and play capabilities and other vital, background functions of the computer. From this point the computer’s memory stores the essential information of the operating system from the hard drive to the RAM memory and the memory cycle comes full circle.

With a working understanding of a computer’s memory system, it’s easy to see why it is essential to make sure the system’s RAM is never overtaxed. RAM is responsible for making the OS or operating system function. If it doesn’t have enough space to make that happen, the computer runs poorly and you may lose use of vital information. Fortunately, your RAM space can be cleared out or increased with additional random access memory sticks. Both methods are useful for creating additional space. Computers are much easier to understand when you have some knowledge of their memory systems and how to keep them in good operating order.

Visit Upgrade Computer Memory to find the correct memory upgrade for your computer. Click here to view this blog in PDF.

Tags: Understanding Different Memory

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Flash Memory: The ins and the outs and why it’s important

The more memory you have, the more you can store for use on your computer. And with all the information we seem to need and have instant access to, the invention of flash drives could not have come at a better time. Flash drives are small, motion free memory drives that can store various amounts of information, up to 16GB at this point. They can be easily transported from one place to another and allow you to bring everything you need with you, no matter where you go and what you need to do. But as with any piece of technology, there are advantages and disadvantages.

The advantages of a flash drive

When you want to carry a lot of information with you, a flash drive is a great way to do it without weighing yourself down. These light little drives can hold vast amounts of information and still be able to be stored in your pocket. You can actually store your entire hard drive on some of these flash drives and have a backup copy should your laptop or your desktop die on you. This allows you to always have your information secured and ready to be accessed when you need it to be.

A flash drive is also without moving parts, which makes it an ideal way to store information safely and easily. Because it doesn’t have these parts, it’s not going to break as easily as a typical hard drive can. It’s also more difficult to physically break. Some of the titanium flash drives can support thousands of pounds of pressure before they will break.

The flash drive also allows you to share information with others that have a flash drive in their computer. This is the perfect solution for those that have to make presentations for work or who are working on a project with someone else – the information can be exchanged back and forth.

And yet another advantage of a flash drive is its ability to be used for nearly any kind of information. These drives can also be used and reused for years until they start to have storage problems.

The disadvantages of flash drive

But there are problems that come with a flash drive too. Some of these drives can only be read by certain kinds of flash drive readers (2.0). When the drives can not be read, the information will not be able to be read and that can cause problems.

Likewise, if you want to share the information with someone else, they need to have access to a flash drive reader or a USB port on their computer. If they do not, the information can not be accessed.

The small size of the flash drive is convenient, but it’s also easy to lose or misplace. And if you haven’t encrypted the information on the drive, you can end up losing sensitive business or personal information to someone that finds the drive.

There are some concerns that a flash drive will not be viable after a few years of use – much in the same way that tapes can not be recorded over after a few years. But the experts in the field are split on just how long the life of a flash drive is. Some say a decade, while others say a few years.

The price of a flash drive used to be a main disadvantage for consumers, but the prices are dropping dramatically now as they are being used more often in the market.

The flash drive is an important tool for sharing information, as well as transporting information wherever you need to go. And when you need an additional copy of your computer’s contents, it’s the easy way to back yourself and your life up.

Visit Upgrade Computer Memory to find the correct memory upgrade for your computer. Click here to view this blog in PDF.

Tags: Flash Memory

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