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March 2008 Archives

March 4, 2008

Tech Toy of the Month: Apple Time Capsule

timecapsule.jpg Backups are something that everyone should do, but most people don't. Primarily, people don't do backups because of the perceived inconvenience of the backup process. Now, Apple has introduced a product that promises to make backups as simple as possible.

The Apple Time Capsule is an 802.11n wireless router with a built-in hard drive. The wireless router part is basically the same as Apple's Airport Express (which is functionally very similar to most 802.11n wireless routers). The main difference is that the built-in hard drive can be used in combination with the "Time Machine" feature of Mac OS 10.5, otherwise known as Leopard. Time Machine normally works with an external hard drive directly connected to your Macintosh computer. But now Time Machine can use the networked hard drive on the Time Capsule device.

Time Machine works by automatically keeping your Mac backed-up in real-time. Combined with Time Capsule, your Mac will stay backed up any time it is connected to the network. This is very convenient for laptops, as every time your laptop comes within range of your wireless network it will back itself up. You don't need to do a thing other than make sure your laptop is on. Additionally, Time Capsule will keep all your Macs on your network backed up, so you do not need a separate hard drive for each computer.

One downside to the Time Capsule is that it does not provide an easy method for off-site backup. You can work around this by using an external hard drive to backup your Mac, which you then would take off-site. However, this is not very convenient if you have multiple Macs. Another downside, if you don't own a Mac, is that Time Capsule does not work with Windows computers - but maybe that's just a good excuse to get a Mac!

Time Capsule is $299 for the 500GB model, $499 for the 1 TB model (TB = terrabye, which is 1000 GB). For $299, the Time Capsule is a good value, considering that you are getting an 802.11n base station and 500GB hard drive. It would be difficult to find a 802.11n wireless router and a 500 GB hard drive for less, plus you would be missing the features of Time Capsule.

If you have any questions regarding a backup plan, please contact me and I'd be happy to help

Q: My Windows computer is having problems. Should I do a "System Restore"?

Tech Q & A
- Submitted by many

A: "System Restore" is a feature of Microsoft Windows XP and Vista which allows users to revert a core set of specified system and application files to a previous state. In some cases, a System Restore can allow a malfunctioning Windows computer to return to proper operation. However, it seems like many people think System Restore is a nearly-magical method of fixing any Windows problem. The reality is that System Restore is only capable of fixing certain types of problems. In fact, System Restore could cause problems if improperly used. Think of System Restore as a "shotgun" approach to system troubleshooting. It is possible to throw the baby out with the bath water using System Restore.

For example, a System Restore can partially uninstall recently installed software programs, rendering them inoperable but difficult to completely uninstall or reinstall. It is also possible to "restore" viruses or spyware that had been previously removed. Also, Some people think System Restore will restore data files that may have become corrupted. System restore is not designed to backup user data files, so if the problem is with a user's data, System Restore won't help. And in certain cases, System Restore can actually cause users to lose files from their desktops.

Having the knowledge I have, I much prefer a "surgical" approach to computer problem resolution. This way I am more comfortable in the solution I provide, knowing exactly what I did and minimizing the chance of "collateral damage" - i.e. causing other problems in the course of fixing one. However, I realize that most people don't have the technical knowledge I have and in certain cases a System Restore could be a useful tool in an urgent situation. Obviously, I recommend that users seek qualified technical help whenever feasible. But if for some reason using a technical professional is not possible, then the question becomes when could a System Restore be used?

First, I recommend that a user has a solid backup system in place, unless the problematic computer stores no important data. With this being said, if the problems just recently started and the user can establish a fairly certain sequence of events that appeared to trigger the problem, then a System Restore has a higher probability of success with a minimized chance of collateral damage. The user should try the most recent restore point prior to the beginning of the problems. If the restore operation does not work, the user can undo the restore operation by running the System Restore utility and choosing "Undo My Last Restoration". The user can then try another System Restore point a little further back in time, if desired.

But let me reiterate, System Restore is not a "precision" troubleshooting tool. If you really want to ensure that your computer is in proper operation, I do recommend the services of a qualified technical professional. Certainly feel free to contact me if your computer is having trouble and I'll do my best to help you out.

Don't Ignore Hidden Power Problems

Marcel BrownMost people are aware that electrical surges can damage their electronics, so most people have surge protectors for their computer equipment. The problem is that a lot of people think a surge protector is all the protection they need. But these people aren't aware that surges are simply one type of power problem, and in fact, are less common than other types of problems. While a toaster or simple electrical appliances won't really suffer any consequences from common power problems, computers are much more complicated pieces of equipment and need more complete power protection.

Think of it this way - electrical power is the fuel for your computer just like gas is the fuel for your car. If your car is receiving poor quality fuel, it will not operate well. Really bad fuel can cause a car major problems. The same is true with comptuers. Poor quality electrical power can cause all sorts of malfunctions with your computer. Severe power problems can damage your computer. The reality is that most electrical power is not of a very good quality for computers.

A simple surge protector is not enough. Surge protectors do not protect against under-voltages, over-voltages, electrical noise, and other electrical disturbances. In order to get full protection for your computer equipment, you need a good quality uninterruptible power supply, UPS for short, or commonly called battery backups (not to be confused with a "data backup"). See my previous article about power protection for more information.

Many people also aren't aware that electrical surges can also travel along phone, cable, or network lines. If you have Internet service though a modem or DSL, you should surge protect the phone line coming into your computer or DSL modem. If you have cable Internet service, you should surge protect the coaxial cable connected to your cable modem. Businesses can also protect the Ethernet lines that network their computers. Many UPS units include data line protectors, so this is a convenient way to make sure all aspects of your computer are protected from power events.

Finally, many people now have digital video recorders (DVRs) such as Tivo or devices like the Apple TV in their home theater systems. Products like these are basically computers, complete with hard drives susceptible to the same type of power problems as PC's. I recommend UPS units for home theaters as well, in order to protect these newer computerized devices. They can also protect the coaxial lines that supply home theater with cable or satellite service.

If you are unsure about the status of your power protection for your computer or home theater, please let me know and I'll be happy to help you ensure you are protected.

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About March 2008

This page contains all entries posted to Technology Bytes in March 2008. They are listed from oldest to newest.

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