Tag Archives: files

File compression: What it Is and How to Use It

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File compression: What it Is and How to Use It

Downloading files from the Internet is one of the most popular activities. We download files from software libraries, ftp directories, YouTube and Google Video, MP3 sites, and we download files sent to us as email attachments.

Being so popular an activity, it’s imperative that you compress the files destined for another computer. File compression combines a number of different files into one file, and it can also significantly reduce a very large file to a smaller one. As a result, the transmission of a compressed file across the Internet is faster and smoother.
Identifying Compressed Files

Most files are compressed in .zip format (if you’re using Windows) or .sit format (if you’re using a Mac). The two most popular software programs used to compress and decompress files are Winzip and StuffIt respectively. There are other programs that do the same thing and there are even programs that can compress and decompress files for both the Windows and the Mac system. However since Winzip and StuffIt are the most popular, we will assume you will use either one to compress and decompress your own files.

If you download a compressed file from a website or file library that ends in an .exe extension, take note that although the file is compressed, it’s typically a file that will install a program onto a computer. .Zip or .Sit files don’t install software – they merely archive a collection of them into one, or they significantly reduce the size of a larger one.
Decompressing Files

Assuming that you have Winzip or StuffIt installed on your computer, you can access the files archived inside a .zip or .sit file by simply double-clicking the archive (a file ending in a .zip or .sit extension). Double-clicking one of these kinds of files will open up a window that displays the contents of the archive. In most cases, you can double click a file inside this window to use it, or you can select it and drag the file to a folder to view later.

Depending on how you elected to install Winzip or StuffIt, you may be able to right-click a .zip or .sit file and have the program extract its contents into a new folder for you.

Compressing Files

When you want to upload a file or email a collection of files to a friend, it’s best to archive it as a .zip or .sit file first. This will decrease the time it takes for your computer to send it elsewhere, and it will also decrease the time it takes for someone else to download it.

To create your own .zip or .sit file, you can select a single file or a group of files from within Explorer, and right-click the selection. Again, depending on how you installed Winzip or StuffIt, you can click the “Add to Zip” or “Add to Sit” option and have these programs automatically archive the file(s) into one.

Some files compress better than others and in some instances, you may not notice that much of a difference. The files that compress the best are images, documents, and multimedia files. Executable files (files that end in an .exe extension) don’t compress that well, however when they’re archived with a sizable number of other files, they compress rather well.

 

How To Back Up Your Files Correctly

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How To Back Up Your Files Correctly

It’s simply amazing just how many people are scared to death of losing their data. Most of those who are scared, don’t give a second thought to backing up their data. It is like a bad joke, most people are worried more about losing their data than actually backing it up – which can prove to be a downfall in the face of disaster.

The process of backing up files is done by using servers, CD, DVD, external hard drives, or other methods to keep the data protected. This way, when something happens to your hard drive and you lose your information, you’ll have the information backed up so that you can easily access it again. Data that is important, such as tax files or business records should always be backed up, to ensure that nothing happens to it.

If you are using Windows as your operating system, it will be a lot easier to back up your files. Windows XP has a back up facility in it, so that it can make things a lot easier when you create your backups. If data that is stored on hard drives with XP becomes lost, Windows will immediately fetch the file from another drive or area where it has been stored as a back up. This is a very useful technique, although it still has to be practiced to ensure that you understand how it works. Although it may be very useful, it isn’t as safe as other options.

In order to back up your data and programs in a safe and efficient manner, you’ll need to use some of the more reliable methods, such as external hard drives or servers. Offsite backups are great as well, as the data you backup isn’t left around your office, it is instead entrusted with a company who will ensure that it stays protected.

No matter which method or methods you have decided to use for backing up your data, you’ll be happy to know that they are all easy to use. CD and DVD backups are easy to create, all you need is the software installed on your computer to create the backups with. Servers are easy to use as well, all you have to do is upload your data to a server, then log into the server anytime you need to have access to the data.

Creating backups of your data and information is the perfect way to ensure that you always have it in the event of a disaster. Disasters can happen at any time, which is why you should always back up your data anytime you have something new or something that you haven’t backed up yet.

On a frequent basis, you should create backups of your IT systems and test the backups that you have created. Always make sure that the backups you made are in a safe place, and out of the way of harm. You should also check with your disaster recovery team as well, if you have a team for your business, and make sure that they have the location of your backups noted in their recovery plans.

One of the most important aspects of recovery and disaster planning is to keep an up to date inventory on all of your equipment and material. You should always stay on top of this, to make sure that you can easily identify what you have and how to go about replacing equipment whenever something happens. If you keep a record of your suppliers and their phone numbers, you can have them with you for easy access in the event of an emergency.

Even though it may be easier to document all of your recover plans on your computer, you should also note them on paper as well. Disasters can render your computers useless, which would it very hard to access plans that are stored on your IT systems. If you have them noted on paper as well, you can access them without any problems.

Above everything else, you should always think about the possible disasters that can occur at any time and how to be prepared for them. If you think about things and plan things out before hand, you’ll find that you can handle any type of disaster.