Lost Something On Your Computer? It May Not Be As Bad As You Think

Lost Something On Your Computer? It May Not Be As Bad As You Think

Just because you can’t see it, or can’t find it doesn’t mean that its not there! I would say at least 90% of people who use a computer on a regular basis have no idea how it actually works. They think that things like icons on their desktop will make their computer run slow. Many things that because they have a slow computer it will cause their Internet to be slow. Others think that “Windows” is the computer and they don’t realize that it’s just another piece of software like every other program running on a computer. Finally many people think that when they click and delete something off of their computer, and wipe it from their trash bin that the information is actually gone. If you think that is the case, and you think you have lost your information for good, think again, cause you might just be in luck!

When information is stored on your hard drive or hard disk, it is stored in things called sectors. When you delete something off of your computer through Windows or Linux or Dos all it is doing is telling the computer that those sectors are now available to be written over. The computer doesn’t actually wipe them clean, which would be useless when it could just as easily write over them. So if you have a virus or a computer illiterate roommate that happens to delete the important files off your computer, then you might just be able to get that information back. There is one catch, its not easy!

Not only is it not easy, but also 99% of people don’t have the technology, know-how or resources and education to do it themselves. This is why there are professional companies that specialize in data recovery, and believe me, they charge tons of money.

Data loss occurring from an actual hard drive failure such as overheating and melting important sensors or an electric shock that fries components might actually result in permanent data loss. Yep, so sometimes data recovery cannot restore lost files. This is why data security is a smart, preventative measure. Backing up data on multiple hard drives and CDs and DVDs and on multiple computers will prevent disastrous things like permanent data loss from occurring. Be smart – back your files up, it will cost you less to back up on hard drives than it will cost you to recover files directly from your hard disk.

Memory Upgrades: An Inexpensive Way To Boost Computer Performance

Memory Upgrades: An Inexpensive Way To Boost Computer Performance

Many people buy a computer with only the minimum amount of memory (RAM) installed. The reasons for this vary, but usually computers with the minimum amount of RAM are cheaper than the others, so appear to be a bargain.

Other folks have older computers that might have had a reasonable amount of memory installed at the time of purchase, but struggle to keep up with the memory requirements of modern applications. Installing additional memory is a relatively inexpensive way to boost performance in old and new computers alike.

If your computer is 2-3 years old and it is running somewhat slow, then it’s worth considering purchasing a memory upgrade before lashing out on a new computer. The majority of people that I talk to about computer memory upgrades (especially those with a computer over 2 years old) are surprised at the increase in overall performance after installing a memory upgrade. Typically it can extend the useable life of the average computer by another 2-3 years, at a mere fraction of the cost of buying a new one.

Installing a memory upgrade is usually a simple process, requiring at most a phillips screwdriver to either undo the memory hatch on your notebook, or to remove the case if you have a desktop pc. Once you have access to the memory slots, it’s just a simple matter of pushing the memory module into the spare slot firmly, closing the hatch or putting the case back on, putting the screw back in, and rebooting the computer.

It can be a more complicated exercise if your memory slots are fully populated, but a competent memory supplier should be able to provide you with advice on the upgrade options available and whether or not you will need to remove one or more of the existing modules to make room for larger ones.

The question a lot of people ask me when considering buying a memory upgrade is “What size memory upgrade should I buy?”

I usually answer this with a question: “Tell me about the sort of things you use your computer for?”

Generally speaking I recommend you install 512mb if you are running Windows XP on your computer. Microsoft say that the minimum is far less, but it really is the minimum in my opinion. 512Mb of installed memory will give you enough room for Windows XP to load, and a little spare for a couple of web browser windows, an email client, antivirus application, and a spreadsheet or word processor.

If you run OSX or a flavour of Linux, I still recommend 512mb as a minimum.

If you only have the generally accepted minimum of 256mb, this is barely enough to load Windows XP. As you start up other applications, your pc will begin to allocate “virtual” memory. This means that a section of your computers hard drive is used for moving around data in the same way that physical memory is used, only it goes a lot slower.

If you do photo editing in addition to the basics, think about going up to 1GB of installed memory. If you are a home video buff or play a lot of computer games, then 2GB is really going to keep you productive. (Is gaming productive?).

Memory upgrades are available from many different sources, and made by a lot of different manufacturers. Kingston are probably the best known manufacturer, and they make modules for most of the top OEM’s, who rebrand Kingston memory as their own.

Before purchasing an RAM upgrade, be sure to ask if the memory is guaranteed to be compatible with your PC or laptop, and is backed by a no-quibble return policy. Always make sure a lifetime warranty applies as well.

So if you or your kids are complaining about their latest computer game running too slow, consider that you might not need to buy a new computer even if it is a couple of years old, but simply upgrade the one you have with some more memory. It can make a world of difference, and make your computing investment last a lot longer.

CNC And CAD – Computer Aided Design

CNC And CAD – Computer Aided Design

CAD stands for Computer Aided Design or Computer Aided Drafting. CAD was developed in the early 60s. Today it is the premier way to design, develop and optimized products. People use CAD every day to design virtually every product you see. Generally, designers use CAD to design a product, and then produce prints to manufacture that product. A print is a picture of a part or assembly that is very exact. It includes the dimensions and a parts list used to manufacture a product.

CAD is the use of computer based software packages that assist engineers, architects and other design professionals in their designs. CAD is the part of the main designing process and involves both software and sometimes hardware. Current software packages range from 2D vector based drafting systems to 3D solid and surface modelers.

Computer Aided Drafting software packages can generally be broken into two groups. The groups are 2-D drafting packages or 3-D drafting packages. Most all software packages are moving to 3-D design. 3-D design is really the next generation of CAD. Utilizing 3-D design, engineers can make a model of their product. They can then look over this model for any apparent defects before it is ever made.

CAD is used to design, develop and optimize products. CAD is mainly used for the engineering of models and/or drawings of components. It is also used throughout the engineering process from concept to design of products. These products can be used by end consumers or used in other products. For example, you can design a bolt in CAD, and then use it in a Sub-Assembly in a planetary, which is a part of an earth-moving machine. CAD is also used in the design of tools and machinery. Finally, it is used in the design of all types of buildings from sheds to shopping malls.