Archive for the 'Reference' Category

Processor (CPU) model numbers

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Malgent
on October 24, 2008
in Reference
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Processor model numbers are used to distinguish between microprocessors with different sets of features and different characteristics, such as speed, level 1 and level 2 cache, etc. The model numbers can be used to identify only basic features and most important characteristics, and may not be used to identify all features/parameters of the CPU. For example, model numbers never identify CPU ID, core stepping, core voltage, maximum CPU temperature and a few other parameters. If you need to find out all details on specific processor please use sSpec numbers for Intel processors or order product numbers for AMD microprocessors.

For more information on Intel model numbers please see Intel processor (model) numbers.

For more information on AMD model number please see Athlon XP, Athlon 64, Sempron and Turion model number and Opteron model numbers.

Some stuff I’m selling

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Malgent
on October 24, 2008
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This post is just to show the images and some additional information for a few items I have decided to part with. If you have any questions please refer to the listing that led you here. Sorry but I will not be answering questions from here.

Continue reading ‘Some stuff I’m selling’

Simple Browser Tricks - Go back or forward in a new tab

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Malgent
on July 24, 2008
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Tabbed browsing is usefull enough on it’s own, but there are a few simple tricks that make it even more so. I find that the most useful trick for me is to open the previous page in a new tab. This is done by simply holding down the “Command” key while clicking the back button (or selecting back from the contextual menu).

This also works with the forward button. Any link you click on can be opened in a new tab by holding down command when you click the link. If you want to view an image in a new tab follow the same pattern with the “View Image” or “View Background Image” commands accessed via a right click or a “Control” click.

What is Inline linking?

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Malgent
on July 24, 2008
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Inline linking (also known as hotlinking, leeching, piggy-backing, direct linking, offsite image grabs and bandwidth theft) is the use of a linked object, often an image, from one site into a web page belonging to a second site. The second site is said to have an inline link to the site where the object is located.

Inline Linking and the HTTP Protocol

The technology behind the World Wide Web, the Hypertext Transfer Protocol (HTTP), does not make any distinction of types of links-all links are functionally equal. Resources may be located on any server at any location.

When a web site, such as Malagent’s Sandbox, is visited, the browser first downloads the textual content in the form of an HTML document. The downloaded HTML document may call for other HTML and/or stylesheet files to be processed. These files may contain <img> tags which supply the URLs which allow images to display on the page. The HTML code generally does not specify a server, meaning that the web browser should use the same server as the parent code (<img src=”picture.jpg” />). It also permits absolute URLs that refer to images hosted on other servers (<img src=”http://www.example.com/picture.jpg” />).

When a browser downloads an HTML page containing such an image, the browser will contact the remote server to request the image content. Continue reading ‘What is Inline linking?’

Mean time between failures

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Malgent
on July 21, 2008
in Hardware and Reference
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Mean time between failures (MTBF) is the mean (average) time between failures of a system, and is often attributed to the “useful life” of the device i.e. not including ‘infant mortality’ or ‘end of life’ if the device is not repairable. Calculations of MTBF assume that a system is “renewed”, i.e. fixed, after each failure, and then returned to service immediately after failure. The average time between failing and being returned to service is termed mean down time (MDT) or mean time to repair (MTTR).

It's just a matter of time.

It's just a matter of time.

Mathematically, the MTBF is the sum of the MTTF (mean time to failure) and MTTR (mean time to repair). The MTTF is simply the reciprocal of the failure rate, Continue reading ‘Mean time between failures’