May 12, 2010

WiGig - A Gigabit Wireless technology

Finally it is here. A gigabit offering based on the wireless.


A new group called WiGig is in agreement with WiFi Alliance in developing a standard that will enhance the Data transfers and will be backward compatible with the Existing WiFi devices. The new devices which run on this standard will operate at 60MHz and can deliver data speeds upto 7 Gbps.

Of course there is a trade-off with this. The range is much lesser than the existing WiFi standards. Anyway this technology will boost Wireless Implementation in the Graphic Design Industry where wired networks still rule the roost. It will also boost the media streaming of Blu-ray and HD movies within short range without a HDMI cable.

Specification of Different Standards in Wireless


WiFi Standard
Frequency
Data transfer
Range
802.11a
5GHz
54Mbps
120m
802.11b
2.4GHz
11Mbps
140m
802.11g
2.4Ghz
54Mbps
140m
802.11mn
2.4/5 Ghz
300 to 750Mbps
250m
WiGig
60Mhz
Upto 7 Gbps
10 to 20 m
You can view the detailed Spec sheet at Wikipedia.

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Signing off.

May 11, 2010

All in one PCs - Buy them or not?

You may not expect an honest answer from a System Integrator like me for the above Question. But let me try  my hand in giving you an unbiased buying guide.

All-in-one PCs.
       


Apple introduced the concept of All-in-one PCs where the computer monitor is build directly to the computer there-by making the PC a clutter-free, elegant and easy to use device. Initial designs were based on a CRT monitor making them bulky. However they looked neat and had very less cable around them. When LCD Monitors and wireless input devices like Keyboards and Mice came around, they looked Chic.

         

But All-in-ones were synonymous to Apple's Mac than the PCs. The cult fan base of Apple adopted to the All-in-one design than the PC users did. PCs were looked upon as more flexible and cheap devices than the Apple's iMac by its users. The need for flexibility was a key factor for PCs as you can build it with a set of hardware and later you can upgrade it to a different configuration there is need and money. It also generated jobs in the market as you need Engineers like me to advise and upgrade the PCs. This further helped the penetration of the PCs as the service industry preferred the flexible PCs than the sleeker all-in-ones.

Now since the hardware prices have dropped and users look to productivity than flexibility (smartphones are everywhere), PC manufacturers like HP, Dell, Sony etc., are introducing products for this segment of the market. Let us see what are the Advantages and Disadvantages of the Products in general so that you will know whether to go for it when you think of buying one.

Advantages

  1. Sleek. - They don't occupy much space
  2. Easy to setup. - You don't need someone to connect the Components.
  3. They have everything that makes you productive, connect with people, entertain, etc., - Built-in Webcam, Wi-fi, card readers, Speakers, etc., 
  4. Clutter free. - Less wires around them.
Disadvantages


  1. Less flexible - A fried up Motherboard(mobo) can leave your PC unusable.
  2. Proprietary design - The mobo, Optical drives, Extension cards, LCDs cannot be replaced with component from other vendors.
  3. Services can be costly.
  4. Up-gradations are impossible. 
  5. Costlier than the Desktops.
Here are some links for Various Products available in the Market 



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Will meet you after a small break...


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