Difference Between PCI and PCI Express

The Peripheral Component Interconnect or more commonly known as PCI is a standard for connecting a lot of devices inside your computer to extend its capabilities. Devices like sound cards, modems, NIC, TV Tuners, and some video cards have at some point or another have used the PCI port. The latest version of PCI known as PCI express is a much improved version in terms of speed.

PCIe uses a serial interface instead of the old parallel interface used by PCI. It also utilizes individual buses for each of the devices connected to it instead of a shared one like what PCI uses. The difference in speed is quite huge when comparing the standard PCI slot which runs at 133MB/s to a 16 slot PCIe that can send or receive up to 16GB/s.

Review : Gaming Computer CyberPower PC Black Pearl

Playing PC video games requires more than just the cheapest bargain computer with wimpy hardware components. Those kinds of gaming PCs may have attention-capturing specs like  Intel Core i7 processors or Windows 7 OS, but it's everything else that defines what the machine can actually do. Things like no-name motherboards and RAM are inexpensive – but you end up paying a steep price in performance. Playing games on a system with cheap hardware is like entering the Indy 500 with your mom's old station wagon. People who know gaming PCs know that high-end hardware is what makes high-end gaming PCs. A quality machine would never put a no-name part in the box and expect to sell it. The CyberPower PC Black Pearl received our TopTenREVIEWS Gold Award because it's the gaming PC that sets the standard for high-end gaming systems. This machine is full of names like Corsair and Gigabyte, which are both highly rated manufactures in their respective fields. Overall this machine not only stomps the competition into the ground but does it with ease.

Samsung Galaxy Tab

The Samsung Galaxy Tab is a pretty loaded device with 1Ghz processor, Android 2.2 operating system with Flash support, dual cameras, 32GB storage and wi-fi / 3G connectivity among other features. The front and back surfaces are different with the rear being adorned by white shiny plastic and the front sticking to the normal flush black bezel and glass screen.

Apple iOS 4.3

The latest revision of Apple's mobile operating system, iOS 4.3, sneakily arrived on 9 March - a couple of days before its official release date.
As with other versions of iOS, many of the changes are minor, but there are nonetheless fairly major updates to Home Sharing and AirPlay, along with the introduction of a long-awaited personal hotspot feature.
Naturally, the release also retains revisions included in previous versions of iOS 4.x, such as multitasking, springboard folders, Find My iPhone, Game Center and enhanced Mail.
Home Sharing
Since iOS devices have utterly fixed storage, they are restrictive for anyone who has a large media library.
Even the iPad 2 won't assist on this score, since it tops out (like the current-generation iPod touch) at a mere 64GB of storage (several GB of which is taken up by system software). This forces a pick-and-choose approach to media-syncing, but iOS 4.3's Home Sharing provides a logical and flexible alternative, streaming media from a Mac or PC on the same Wi-Fi network as your device.

iPad 2 : Interface and performance

The new iOS 4.3 release adds several improvements and makes the iPad 2 easier to use (the update is also available for the original iPad).

Finally, you can decide whether the switch on the side locks the screen orientation or mutes the audio. This was a 'gotcha' on a previous release for those who were accustomed to using the switch to lock rotation, because the iPad tends to switch at inopportune times.

However, the software setting is not as important now: the iPad 2 actually does a better job judging orientation than the first iPad thanks to the new gyroscope.

With the iPad, you sometimes had to convince the screen to rotate by rocking the device forward or back (almost like a fan), but that issue seems to have gone away.

We'll test the 3G version of the iPad 2 in the coming weeks, but iOS 4.3 does not let you use Personal Hotspot to share the carrier connection like the iPhone 4 does even though they both use the same iOS 4.3 release.

iPad 2 : Features

On paper, the iPad 2 is 'twice as fast' as the original iPad, running the brand-new dual core A5 CPU built by ARM.In practice, it might not be that obvious that the processor is faster. Many apps, such as the Safari browser and the iPod media app, start about as fast as the original iPad. But as we'll see, apps like iMovie and GarageBand do run much faster.

Also on paper, the iPad 2 has more memory for apps. The original model had 256MB of RAM, but the new version doubles that to 512MB.
The Motorola Xoom has 1GB of RAM, and that provides an extra boost for running more apps and switching between them, and a noticeable speed improvement for 3D mapping.

Microsoft Office 2010 Web Apps: Try Them Right Now

Wondering what Microsoft's Office 2010 Web applications will be like, and how they'll stack up against online competitors like Google Docs? Well, you don't have to wait any longer, because anyone can access a technical preview of Microsoft's Office Web apps right now. Microsoft has been offering a limited technical preview since the late fall, and then in March Microsoft quietly opened up the preview so that anyone can try out the new Web apps. All you need is a Windows Live account, a Web browser, and an Office file to upload to Windows Live SkyDrive, Microsoft's 25GB free online storage space.
Here's how to get started:

Difference Between Hub and Switch

 

Hubs and Switches are two terms that are used interchangeably when referring to the network component that connects all the nodes in network. Even if most devices in existence today are switches, most people still call them hubs and get away with it. The difference between the two types of devices is the overall speed that they can broadcast data across the network. Switches are able to transmit data a lot faster compared to hubs.

Hubs are very simplistic devices that accept a single data packet then sends it out to all the computers that are connected to it. This means that only one data packet can pass through the hub at a time and all the data must wait for its turn. The overall bandwidth of the router is then shared by all the computers and that degrades the speed. This method often leads to a collision of data where a computer tries to send a packet of data to the hub while it is broadcasting. In order to detect and correct such collisions, most hubs employ added hardware that could slow down the total speed even more; an additional effect that it has is the limit on the number of elements you can have on your network.

Prologue

Hello, blogger. My name's Tirta. I'm from Bali, Indonesia. I hope with this blog, I  can share my knowledge about computer, technology, Internet or may be the other.
I wish you can feel what I feel, you can know what i know. Just that and happy blogging. :D