Thursday, September 10, 2009

Handheld PC/ PalmTop

A Handheld PC, or H/PC for short, is a term for a computer built around a form factor which is smaller than any standard laptop computer. It is sometimes referred to as a Palmtop. The first handheld device compatible with desktop IBM personal computers of the time was the Atari Portfolio of 1989. Another early model was the Poqet PC of 1989 and the Hewlett Packard HP 95LX of 1991. Other MS DOS compatible hand-held computers also existed.

Some Handheld PCs run on Microsoft's Windows CE operating system, with the term also covering Windows CE devices released by the broader commercial market.

Tuesday, September 8, 2009

What make site attractive?

1. It's perfect for beginners because it takes the techno-babble away and makes the site-building experience smooth, enjoyable and frustration-free. And if, at any time, you decide to become more technical, the sitebuilder can easily keep up with your newly found skills.

2. Puts the fun back in creating something you can be proud of. In a few months you'll have a popular website, a thriving community or a profitable web business.

3. The SBI community welcomes you among thousands of other beginners eager to learn how to make a website. Their support, advice and motivation will prove invaluable in building your success pixel by pixel.

4. It gives you the tools, motivation, support and above all, the essential intelligence needed to make a website, one that shines for years to come.

5. Good money-back guarantee (they refund you if at any time you change your mind, whenever and whatever the reason -- yes, I know it sounds too good to be true and yes, I did ask them myself).

The Quick And Easy Way to Create Website

Taking shortcuts means using website builder software for help. These fall into two major categories:

1. Website builders that only help with the technical side (creating and publishing pages, hosting, domain names, etc). These can be both online and offline, free and paid site builders.

2. Website builders that also help with the non-technical, human side, the fun side (figuring out what to make the site about, attracting visitors, interacting with people, making money out of it, becoming popular thanks to it -- in essence, making it work).

Now, as a professional designer myself, I wouldn't touch a site builder with a barge -- mainly out of principle. But I do have good reasons not to use them. I can't complain about the free website builders (precisely because they're free) but some of the commercial site makers I've seen make me cringe.

They are complicated to use, redundant, most don't give a website a fighting chance and are ultimately useless. Learning to make a website with these paid site builders is frankly, frustrating and not worth the trouble (or the money). Most of the time, free blogs or free website builders do the job just as well, or even better!

If you need to create a simple website for your family and friends, then free options will work just fine. However, if you plan to sell your products online or attract people to a web site about something you feel passionate about and make it wildly popular, then it's important to look at a website builder that can really help you achieve that (instead of a website that only takes up space).A few months ago, I came across website holder and, for once, I was pleasantly surprised. Being a webmaster myself, I am reluctant to saying this, but software like this one could, potentially, turn the web designers of today into a dying breed. But I was skeptical at first. Very skeptical. I loathe companies who are quick to make a buck but give you little in return. So I started investigating.

Hard Disk

The hard disk is where all data is stored - the operating system, ancillary programs, and HTML/images/movies/etc for every webpage.

The hard disk is an often overlooked bottleneck in the server architecture. While many people correctly focus on the CPU and memory constraints, they incorrectly only focus on the hard disk size. This is a misunderstanding of how a hard disk operates.

Just like RAM, a hard disk not only varies in size, but also in speed of data accessed. Unlike RAM, hard disk space is cheap - Adding another hard disk or getting a bigger hard disk is not a big expense. What is really important is how fast the hard disk responds.
A hard disk has three main stats - its storage space, its seek time (how long it takes to find data), and its RPM (how 'fast' the hard disk operates). In a server situation, the seek time and RPM become increasingly important.

Before further elaborating, we have to quickly mention IDE/SATA vs SCSI. Most desktop computers feature IDE or SATA hard disks. The IDE/SATA nomenclature refers to how the hard disk interacts with the rest of the computer. A higher performance solution is SCSI (pronounced 'scuzzy'). For servers, it is recommended that SCSI drives are used.
Now, going back to our earlier discussion of seek time and RPM, most desktop computers have hard disks with seek times of roughly 8 ms. SCSI drives clock in at around 3 ms - this means data is found in 50% of the time!

Regarding RPM (revolution per minute), an IDE/SATA drive usually goes at 7200 RPM, with some high-end versions going at 10,000 RPM. SCSI hard disks come in at 10,000 and 15,000 RPM. Combined with the earlier seek time, this means that SCSI drives not only find data faster, but also get the data faster.

For the sake of completeness, a fourth factor to consider is throughput - the speed at which data is transferred from the hard disk to the CPU. IDE/SATA solutions peak at around 100 Mbps. SCSI drives can obtain speeds up to 320 Mbps.

SCSI solutions also have other advantages. These include higher mean time between failures (MTBF - an estimate of how long the HD will properly work), more advanced controls for data integrity, less server resources utilized, and also larger cache size. Lastly, SCSI drives can be changed together much easier when compared to an IDE/SATA solution.

Central processing unit

A Central Processing Unit (CPU) or processor is an electronic circuit that can execute computer programs, which are actually sets of instructions. This term has been in use in the computer industry at least since the early 1960s (Weik 2007). The form, design and implementation of CPUs have changed dramatically since the earliest examples, but their fundamental operation remains much the same.

Early CPUs were custom-designed as a part of a larger, sometimes one-of-a-kind, computer. However, this costly method of designing custom CPUs for a particular application has largely given way to the development of mass-produced processors that are made for one or many purposes. This standardization trend generally began in the era of discrete transistor mainframes and minicomputers and has rapidly accelerated with the popularization of the integrated circuit (IC). The IC has allowed increasingly complex CPUs to be designed and manufactured to tolerances on the order of nanometers. Both the miniaturization and standardization of CPUs have increased the presence of these digital devices in modern life far beyond the limited application of dedicated computing machines. Modern microprocessors appear in everything from automobiles to cell phones and children's toys