Manufacturers Listing

There is a group of pages on the web site that's provides all manufacturers in an alphabetic listing, rather than by product function. Currently that section comprises 90 pages, and growing. Some of the pages are being reduce in size by half, once I find the individual page has grown to large in size. I'm manually checking links, so there is a reason to review the pages.

A few years ago all the listings appeared on 6 very large pages. Then they were reduced to each letter of the alphabet. Now one letter may span several pages. Smaller pages result in a faster down load.

So the 'I' section of companies was up-dated today:
Manufacturers starting with "Ia",
Manufacturers starting with "Il",
Manufacturers starting with "In",
Manufacturers starting with "Inn",
Manufacturers starting with "Int",
Manufacturers starting with "Intel",

This is an alphabetic company listing of most of the Electronic manufacturer sites listed on this web site. You can also search for a company by product function, using the links at the top right of the page. Or you can use the icons below to search by product function.
There are a few companies listed here which are not listed on any of the other pages. Also; any company site which has gone bad is listed here [with the original URL] with a new address or link if it's available. The old [obsolete] reference of a site is removed from all other pages of the site.
As a rule only OEM [Original Equipment Manufacturer] Electronic manufacturers are listed, while value added sites are not. This is a listing of companies in the US, in addition to American Manufacturers, European Manufacturers, and Asian Manufacturers are also included.

Incorrect Page Address

The server statistics counter 'AWSTATS' provides a section called;
Required but not found URLs (HTTP code 404).

It's a list of page requests that returned a 404 code [not found] to the computer browser requesting that page. So far this month, the list contains 725 URLs. Many of the URLs are valid, so I figure it was hit while the server was off-line. However some page addresses are not valid.

Somebody in a news group posting links to a page on my site, but gets part of the address wrong. Another web site may get the address wrong.

Anyway, when I see a request for a wrong page address, I generate a page with that address to capture the incoming request. That way the person requesting the page sees a file alerting them to the correct address. Unfortunately some page requests can't be decoded to a live address.

Currently there are 120 html files on the server to capture incoming incorrect page addresses. Normally the pages don't see a lot of traffic once the news group posting falls off the main front page. But those postings are out there forever. All the holding pages are identical except the page address, title and the new link, if it's provided.

There also happen to be a lot of page requests with characters that don't decode well, so I let some go. Not going to load a .html.exe file to the server.

I added two more pages tonight, not going to list them ~ no reason to reinforce an incorrect page address.

Spacer & Standoff data

Taken from the main Mechanical Bolt Manufacturers page [covering Nuts, Bolts, and most other hardware]; I started a new page for Spacers and Stand-off manufacturers. Most manufactures produce all types of hardware so this was only done to provide a place to add common characteristics for stand-offs and Spacers.

Because of bandwidth issues I also added a new USB page to show the USB Cable Diagram. The original USB page still shows the cable cut-out but in a thumbnail instead of a full pick. So the gif file on that page went from 9K to 3K bytes. Only people that need to see the cable diagram need click the thumbnail to pull in the full 9k byte graphic. This assumes only some percentage of visitors will need that graphic, saving 6k bytes of server bandwidth ~ 240MB per month.

Ya know, I also noticed that the two graphics on the USB section were downloaded at different rates. There are sites out there that link to a gif, rather than a page. When they link to a gif the server sees the download, while the web site page is never viewed. So they take my pic file, and my bandwidth, but never give me a page hit ~ The visitor on the other site thinks the graphic is local. When I see this occurring I change the gif file name or trade it out with a site banner ~ so they down load the banner instead of the graphic.


I've also started to change the Google search bar so it defaults to search interfacebus.com first. However, at the same time some pages still don't have a search bar at all yet. At this point only about a dozen pages have been up-dated with the new search bar ~ looks the same.

Multi-Colored LEDs

Added a page listing Multi-colored LED manufacturers, listed off the main LED products page. Multi-colored LEDs are produced in either through-hole or surface-mount styles [more common].

Bi-color LEDs are more common than Tri-color LEDs, with surface mount being the common configuration. You may also see Tri-colored LEDs referred to as RGB LEDs [Red, Green, Blue].

Unlike a standard dual lead LED, multi-colored LEDs are three and four leaded devices. One lead being the common cathode or common anode, and the remaining three leads the anode or cathode [for common cathode devices].

SCSI Bus Trend

The original SCSI bus was released in 1984. Over these 20 years SCSI was up-graded a number of times raising it's throughput from SCSI-1 @ 5MB/s to 160MB/s for SCSI-5.

Any way I was updating web pages today based on when they were lasted reviewed. About half a dozen SCSI bus pages showed up with dates of 12/12/06. So I decided to take a look and see if those pages required an up-date ~ remember standards work stopped on a number of older SCSI standards [so the facts aren't changing].

I took a look at the SCSI page hits year to date, by month, and I noticed that the pages were only getting a few thousand hits combined. So 12 related SCSI bus topic pages only received 12,000 page views this year. That is real low for a major computer interface.

However; Serial SCSI [Serial Attached SCSI, or SAS] was released in 2003 which moved from a parallel interface to a serial interface ~ identical to SATA. The Serial SCSI interface jump the through put speed to 3Gbps, using a smaller cable.

So I realize the Parallel SCSI is in decline, but it seems that the trend is showing a massive decline, as shown in the chart.

Of the two main Hard Disk Driver interfaces [HDD], SCSI seems to be taking a harder hit then the IDE interface [ATA Bus] ~ which is also obsolete. The SCSI bus was also more expensive to implement than IDE, and SCSI tended to be integrated by high-end users so it stands to reason. Work stops on the SCSI standard and at the same time starts up on a new faster Serial SCSI ~ so you have no up-grade path. You have to move to the new Serial version of the bus.

IDE shows a hugh decline too, but not as massive