Electrical and Test Equipment Information

Bookmark us!

Thanks for visiting our site!
Here you will find the Usb Universal information that you are looking for.
We welcome you to browse our website and use the search feature if there is something in particular you are looking for.

We've included some informative information on each page for your enjoyment.

USB Port Explanation

Everyone that has used a PC or laptop will have used this ports without themselves knowing.

The history of the USB port goes back to the period of 1990s where several connection interface exist such as serial port, parallel port, ps2, etc. With so many interfaces, a typical user will need different cables for each separate connection.

USB(Universal Serial Bus) was created to standardize all the different interfaces, hence the word “universal”

With the standardization of different interface, the USB port has more tasks to complete – to increase their transfer rate between the host and devices connected to it.

USB started off on specification USB1.0 in 1994, followed by USB1.1, and finally USB2.0 in 2000

The various transfer speed of the specification is as follows

USB1.0 – 1.5Mbit/s

USB1.1 – 12Mbit/s

USB2.0 – 480Mbit/s

As of writing, USB3.0 Specification was in the midst of discussion and the transfer speed is rumored to be at 5000Mbit/s!!

The increase in transfer speed was mainly meant for transferring of data between devices. As USB hard disk expands in capacity, and users are demanding for better video quality, naturally, video file sizes are increased. Thus the birth of USB3.0

The first commercial product released for USB flash drives, commonly known as thumbdrive, in 2000. Back then, flash storage was at a measly 128mb. At time of writing, 2009, 1.5TB (1,500GB or 1,500,000MB) already exists!

If we were to transfer a single file of 5Gb on usb1.1 specs, on theory, we will need 3333s, which will take around 55min!! and 83s on a USB2.0 Specs.

Over the years, different companies develop different interface for USB devices as well, which somehow defeats the purpose of standardizing a common interface. However, the problem of different interface was not as serious as it was back in 1990s.

USB cable was able to carry power and to power up devices such as thumbdrive, webcams, external hard disk, usb speakers, etc. However, power is capped at 5v, 100mA.

USB cables suffer from a “useful” distance. Meaning, the maximum length of a usb cable is capped at 5m. Should the length be longer, the efficiency dropped and data may be corrupted.

For PCs with limited USB ports, a hub, typically with 4 additional USB ports, may be purchased. This will indirectly increase 3 more USB ports on your computer. However, take note that the bandwidth and power of each port on the USB hub will be reduced, as all its bandwidth and power are sourced from a USB port.

Common problems faced from using a USB hub, slower transfer rate and the inability to power up external 2.5” hard disk as they require more power as compared to a usb webcam or usb speaker.

That is all to wrap up for the topic and history for USB. I hope that the above computer guide will assist you in having a further understanding of USB history.

For more information about computers, do visit S-Mall Computer Article Section.

If you are purchasing computers in Singapore, do drop by our website http://www.s-mall.com.sg

 

PR:
wait...

I:
wait...

L:
wait...

LD:
wait...

I:
wait...

Rank:
wait...

C:
wait...

About the Author:

Nick Lee is a consultant for a computer website at http://www.s-mall.com.sg and has assisted many on their technical issues.

Article Source: ArticlesBase.com - History of USB Port Explained, USB Port simplifed

Check Ebay for Usb Universal products. Ebay can be a great resource for finding most anything you desire!

Another great resource for Usb Universal products is Amazon. They have far more than just books!

Targus PA243U Notebook Portable Lapdesk $5.98 Use your laptop and mouseon your lap or deskProductInformationThe Targus Compact Laptop Desk allows you to create a workspace foryour laptop wherever you go.  Nearly as thin as a magazinethe Compact Laptop Desk folds in half to easily fit in a laptop bag fortravel.  The desk lays flat on your lap for a stable worksurface ideal in airports or other pact spaces where a table is notavailabl...

Swiss+Tech PTCSSS-XL9 Micro-Pro 9-in-1 KeyChain MultiTool $8.35 Features #2 flat screwdriver #2 Philips screwdriver pliers wire cutter wire stripper sheet shear 1/4 in. rule markings LED flashlight quick release technology and key ring....

Softech Black LED Desk Lamp with iPod/iPhone Dock $179.99 This innovative desk lamp provides full spectrum LED light suitable for work, studying and living activities. Plus, a full-featured iPod/iPhone dock lets you play music through built-in speakers and sync with your computer. Additional audio input lets you listen to any MP3 player. The advanced LED array features three selectable light settings with integrated dimmer. This lamp is energy efficient ...

Safina $3.97 Asian edition of the Italian vocalist's 2001 album includes two bonus tracks, 'Music Of The Night' (co-written by Andrew Lloyd Weber) & 'Aria E Memoria' (Italian/English duet with Chrissie Hynde). Mercury....

White on Blonde $1.37 Great pop music is driven as much by raw emotion as it is classic textures. While this Scottish band excels in the latter trait, Texas has grappled with finding its own voice ever since making its 1988 debut. White on Blonde is the perfect example of an album that sounds right, but feels wrong. The band may borrow key traits from pop history in constructing its gentle blues style, but it woefully ...

Angels With Dirty Faces $0.07 International edition of the British trio's sophomore album that fuses UK garage, R&B, hip-hop & electro-pop. 11 tracks including the hit singles, 'Freak Like Me' & 'Round Round'. Universal Island Records....

Belkin Mini Surge Protector Dual USB Charger $13.30 Protect your electronic devices while traveling....

Belkin 6-Outlet Home/Office Surge Protector $3.45 This Belkin Home/Office Series Surge Protector provides premium power protection for small home appliances, and other connected devices. Our decades of research and development have led us to the release of this breakthrough series. We've used advanced design elements, top-quality construction, and superior circuitry and components to provide the most complete protection from power surges, spikes,...

GE 50759 6-Grounded Outlet In-Wall Adapter, White $3.49 6 outlets 3 transformer-spaced outlets Transformer-ready UL listed Ideal for home offices home theaters Designed to cover only an existing grounding duplex wall outlet...

G.I. Joe A Real American Hero: Complete Collectors Set [The Complete Series] $139.98 Studio: Uni Dist Corp (music) Release Date: 10/27/2009 Run time: 2190 minutes...

---

And here are more fine merchants that offer Usb Universal products:

Thanks for visiting!

Share and Enjoy:

• 
• 
• 
• 
• 
• 
• 

Tags: hardware, software, technology, tools, usb, usb universal adapter, usb universal car charger, usb universal charger, usb universal docking station, usb universal drive adapter, usb universal host controller, usb universal host controller 2442, usb universal host controller drivers, usb universal remote, usb universal serial bus

This entry was posted on Wednesday, October 18th, 2006 at 5:42 pm and is filed under Uncategorized. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.