How RAM Works

Random access memory (RAM) is the best known form of computer memory. RAM is considered "random access" because you can access any memory cell directly if you know the row and column that intersect at that cell.

The opposite of RAM is serial access memory (SAM). SAM stores data as a series of memory cells that can only be accessed sequentially

If the data is not in the current location, each memory cell is checked until the needed data is found. SAM works very well for memory buffers, where the data is normally stored in the order in which it will be used Similar to a microprocessor, a memory chip is an integrated circuit (IC) made of millions of transistors and capacitors. In the most common form of computer memory, dynamic random access memory (DRAM), a transistor and a capacitor are paired to create a memory cell, which represents a single bit of data. The capacitor holds the bit of information -- a 0 or a 1 (see How Bits and Bytes Work for information on bits). The transistor acts as a switch that lets the control circuitry on the memory chip read the capacitor or change its state. A capacitor is like a small bucket­ that is able to store electrons. To store a 1 in the memory cell, the bucket is filled with electrons. To store a 0, it is emptied. The problem with the capacitor's bucket is that it has a leak. In a matter of a few milliseconds a full bucket becomes empty. Therefore, for dynamic memory to work, either the CPU or the memory controller.

cellphones that run on soft drinks...:):)

Now thanks to a Chinese designer Daizhi Zheng, we may soon be able to use mobile phones that use soft drinks like Coca Cola instead of lithium batteries, reports Indiainfo.com. Zheng who has been working on this revolutionary device for Finnish cellphone maker Nokia, claims that he has come up with a way of using sugar-based drinks to power mobiles. Any sweet drink, even sugar-sweetened water would be enough to keep the phone running much longer than lithium batteries.The bio-battery generates electricity from carbohydrates, using special enzymes as catalysts. In the process, the device generates oxygen and water. According to Zheng, his sugar-based bio-battery lasts up to four times longer than a fully charged lithium battery and is much easier to recharge: just pour some more sweet fuel. Since lithium batteries are very expensive and harmful for the environment, if Zheng's Coke-powered cellphone turns out to be real, it would be a significant breakthrough.

MUSICAL SEARCH ENGINE 2 CUM SOON...!!!

Search enginesof today might be able to do just word and images searches, but how many of them will be able to take a sound sample and retrieve similar tunes?computer scientist believes that the upcoming search engines in the future will be able to do just that – retrieve music on your behalf whenever you belt out a tune to your computer.

Currently, there are still a fair number of problems to solve, such as the wide range of music genres available as well as ‘the effect interference from things such as sound quality and environmental noise have on the ability of the program to detect notes.’

This project currently concentrates on a specialized music search engine that is capable of retrieving audio by singing, requiring users to log on to a specific website and singing a short snippet or lyrics straight into the computer microphone as a query submission. The computer will get to work straight away, searching the website’s database and retrieving a menu of digital files where the user can then download.

Upcoming computer technology on gadgets

Silverpac-Remember back in the day where there were just a couple of channels on your black-and-white TV, and yet with just those few channels, you could spend endless hours glued to whatever programming that came your way? Also, there was no need to hook up some other peripherals like home theater systems and DVD players since those didn’t exist Fast forward a few decades and you have a plethora of accessories and appliances that can hook up to your TV, not to mention each of them having their own remote controls. In order to make things more centralized and consolidated, SilverPAC has decided to reveal their evolution 5500 universal remote control to the masses by unveiling it at the upcoming CES 2010 in Las Vegas.SilverPAC hopes to place consumers firmly in control of the many systems that are part of their home ecosystem, where the evolution 5500 will embed Microsoft’s innovative software

technologies to deliver something that most consumers would not have come across before in the market. The flagship evolution 5500 will rely on Windows SideShow technology, effortlessly integrating personal communications including e-mail and video streaming while being able to control over 100 home theater and automation systems, be they lighting and HVAC, all from a single touchscreen device (that’s the trend these days). Using the Microsoft Green Button, your whole digital entertainment library on home Windows computers can be accessed via Windows Media Center in an instant. Built on Windows 7 and Windows embedded solutions, the evolution 5500 makes it a snap for custom integrators to develop new applications while making them work with after-market devices.

GOOGLE..Vs..MICROSOFT

Here's a battle raging across the technological corporate landscape. Whoever wins this battle could dictate the way most of us use computers for the foreseeable future. This battle will be fought on hardware, software and over the Internet.In one corner, we have Microsoft, a corporation founded in 1975 by Bill Gates and Paul Allen. The company's market capital was nearly $175 billion . The flagship product for Microsoft is the operating system Microsoft Windows.
And in this corner we have the young challenger: Google. Founded in 1998 by Larry Page and Sergey Brin, Google set out to become the best search engine on the Web.In February 2009, Google shares traded on NASDAQ for around $356 per share. Google's market capital at that time was nearly $117 billionBoth companies suffered setbacks as the global economy began to decline in 2008. Microsoft stock had once traded at more than $30 per share, while Google stock traded at more than $700 per share at its height. In January 2009, Microsoft announced that it would cut 5,000 jobs from the company. Google also announced it would cut 100 jobs from its internal Human Resources department. It was the first time either company had announced job cutbacks.

At first glance, Google and Microsoft don't seem to be the kind of companies that would compete directly with one another. Google's main product is a search engine and the company's revenue comes from ad sales. Microsoft's main product is an operating system and other software. Where's the conflict?

It turns out there are several points where Microsoft and Google cross paths. Microsoft has its own Web search engine called Live Search.

Google searches accounted for more than 60 percent of all online searches in the spring of 2008. By comparison, Microsoft searches amounted to less than 10 percent of all searchesGoogle and Microsoft both offer suites of productivity software.
Microsoft Office is a popular software suite that includes word processing, database management and spreadsheet applications. These desktop programs tend to be robust and include a lot of features that the average user may not need all that often but professionals regularly rely upon for their work.Google has its own productivity software suite: Google Docs. Google's productivity software is Web-based, meaning you access the applications through a Web browser. The applications aren't as robust as Microsoft Office. But Google says that many consumers simply want software that's good enough to fulfill basic functions. Since Google Docs is Web-based.
One advantage Google may have over Microsoft is public perception. Part of ­Google's philosophy is "you can make money without doing evil"Microsoft used to have a similar reputation. But after years of dominating the operating system marketplace, Microsoft has become the establishment. In 2007 and 2008, Microsoft had to weather a storm of criticism aimed at Windows Vista. Windows Vista suffered from a series of stability problems, security issues and compatibility errors when it was first released. While software patches helped address many of those problems, many people had already decided to avoid the OS and wait for the next generation.Google's position on the Web is solid. An important Microsoft product is its line of Xbox consoles and games. The video game market is one area of strength for Microsoft that Google has yet to touch.In 2008, Google introduced its own browser: Google Chrome. Chrome may be the first step toward a Web-based operating system.
t's likely that Google and Microsoft will compete even more in the future. Both have suffered losses as the global economy has gone into a declineGoogle seems to have a great deal of momentum.On the other hand, many Google services seem to be stuck in beta. Beta is the industry term for products that are in a testing phase -- they aren't yet in a finalized format and users may encounter bugs or other problems while testing the product. Google introduced Gmail in 2004. Five years later, the service is still in the beta phase. And despite multiple attempts at diversification, Google's search engine is its only breakout financial success. Ninety-seven percent of Google's revenue comes from online ads .

The public and corporate reaction to Windows Vista was a blow to Microsoft. The Windows operating system is a core Microsoft product. As more people learn about cloud computing and question the value of powerful personal computers, the company must adapt to the new market environment. Microsoft has several initiatives it has designed to capitalize on cloud computing. While the Vista problem may have put the company off balance, Microsoft hasn't been knocked down yet.

Competition may turn fierce on some fronts, but it looks like Google won't be dealing the death blow to Microsoft any time soon.