Occassionally, a negative balance arises in Accounts Payable (A/P), and business owners who take care of their own books don’t understand how the problem happened or what to do about it. Here’s the scoop:

A negative balance in A/P can sometimes mean that bills were entered, and checks were written against those bills, but the original bills somehow got deleted or voided. The bill-payment checks are left “hanging” in the system, creating a negative balance in A/P.

If you notice a negative balance in A/P, or even if you have certain vendors who show a negative balance in the Vendor list, go to the Reports menu and select Vendors & Payables. Then select the Unpaid Bills Detail report. Scan through the report and look for negative amounts. If you see any, double click on them.

After double clicking, a bill-payment check should open. Look at the lower half of the screen. Possibly, there will be no bill located here, no amount at all, nothing to indicate that this check was applied to a bill. If so, leave this window open, and go to the Vendors menu. Select Enter Bills. Enter a bill to the vendor you just saw on the last screen. Be sure to use the same amount you saw on the check. You will need to guess as to the correct due date – better yet, try to locate the original bill so you can get correct information off it. After entering it, click Save & New to leave the window open if you have more bills to enter, or Save & Close to close the window if you are finished.

After entering the bill, go back to the bill-payment check. Look at the lower half of the screen – the bill should be there. If it is, place a checkmark next to it, and enter the correct amount (the amount on the check) in the far right column. Click Save and Close. QuickBooks will ask if you are sure you want to save the transaction – click Yes.

Go to the Unpaid Bills Detail report and click Refresh. The bill-payment check, which caused the negative amount on this report, should now be gone. Follow these steps for all negative amounts you see on this report.

Important: notice that you did not repay the re-entered bills – you did not use the Pay Bills function. The original bill-payment checks were in the system, and we simply applied those checks to the re-entered bills. If you accidentally repay the re-entered bills, this will not solve the problem of having a negative balance in A/P.

If you see negative amounts that DO have bills applied against them, that is an issue beyond the scope of this article.

In the future war, rapid forces transferring and highly mobile operation will be a common-used tactical means. Low altitude and ultra low altitude attack now have become a common-used tactical means for air forces to avoid being detected.

All of these demand for a high performance radar that has the following performances: it can be disassembled, transported and set up rapidly; it has excellent electric performances, especially for detecting low altitude and ultra-low altitude targets; it has good ECCM performance and high reliability, and can be transported by land, sea and air; it can be powered on/powered off rapidly.

YLC-6M radar is a highly mobile, fully solid state, medium/low altitude surveillance radar developed in 1990s’ based on the operation demands by radar forces.

YLC-6M radar is a vehicle-carried, highly mobile, fully solid state, 2D, medium/low altitude surveillance radar in S band. It used fully solid state, full coherent, pulse compression and MTI detection techniques.

The radar is characterized by good performances such as high mobility, high reliability, high automatization and etc. The radar is mainly used for highly mobile air surveillance, and detection of low altitude/ultra low altitude flying targets. It is also used to provide the operation and command system as well as aviation force with numerous synthetic information such as azimuth, range, foe/friend attribution of air targets. The acquired information can be introduced into the radar chain in Real-Time. So it can be used as a highly mobile, medium/low altitude gap radar in the air intelligence radar chain. It can also be used as a stand-by radar to replace the destroyed radar. Its supplementary tactical function is to provide the air traffic control system in the airport with primary radar information of approaching control. The radar has high maneuverability and strong ECM capability as well as higher survivability. The main operation missions are:

a. Suitable for rapid transfer in the battlefield and emergency mobile operation, to provide theater air situation surveillance so as to assure the operations and guidance of aviation forces;

b. To detect low/ultra low altitude hostile targets and to prevent low/ultra low altitude sudden attacks;

c. To rapidly enhance the deployment of the original radar chain and rapidly supplement the original radar chain so as to increase the local air situation provision capability.

d. To play an unexpected role in the beginning of the war due to its mobile deployment capability and parameter shielding capability.

YLC-6M radar is mainly used to detect air targets such as kinds of fighters, attackers, bombers, EW aircraft, reconnaissance planes, transportation aircraft and civil flight planes. It has good detection capability for medium/low altitude targets, especially for low/ultra low altitude targets.

END OF PART I

Wireless devices have exploded in popularity and most often, we forget what type of technology is actually being utilized. Granted, you can find the Bluetooth logo everywhere, but do you know how beneficial Bluetooth is, or even why? Let us take a look at the top ten benefits of Bluetooth.

One: Wireless…need I say more. Going wireless alone can have many of its own benefits, mostly, freedom from wires. No more having wires interfere with your work, accidentally being pulled off your head, or tripping someone. No more having to worry about bringing the connection wires when traveling. I always found it a pain, digging in my briefcase, only to realize, I forgot the connection wire to my headphones…bummer.

Two: Low Interference. Bluetooth is known for its ability to stay out of the way of other wireless communications. Interference is a major issue with most other forms of wireless communication.

Three: Bluetooth is fairly homogenized. This means a standard by which all devices, regardless of their operation, has the ability to connect if Bluetooth is installed, or enabled. This guarantee’s connectivity across a wide range of electronics and other product lines.

Four: Bluetooth is automated. Connection of Bluetooth devices is simple. Unlike WI-FI, or others, where a long, drawn-out process is required to connect. For Bluetooth, so long as the devices are within 30 feet (that has been extended now in Bluetooth 2.0), the devices have the capability of acknowledging each other and having quick connections.

Five: From an expense point of view…Bluetooth is less expensive to purchase and implement than other wireless technologies for any business. These savings can certainly help the bottom line.

Six: Instant network capability. Bluetooth allows you to instantly create an intranet, what is known as a PAN (Private Area Network). At the time of this writing, it is possible to connect up to seven devices, within thirty feet. You can also setup multiple PAN’s in a single area, as again, the interference will not be a problem.

Seven: Since the standard for Bluetooth is connectivity, this allows devices the opportunity to instantly share information. What this truly means is that both devices have the ability to receive and send the information as the technology to send it and reproduce is the same. Granted, you will need the respective application handlers on the other end in order to interface with the information sent.

Eight: Low energy usage. Bluetooth incorporates a unique power saving strategy called ‘frequency hopping’. The signals are low in energy, and therefore, low on power consumption. This technology requires little, in terms of battery power in order to proper function. This truly comes into play when in use with mobile devices, such as Bluetooth headsets.

Nine: Easy upgrades. One of the many standards is the ability for easy upgrade of the technology. All devices are required to be upgraded, which will provide new Bluetooth benefits and backwards compatibility.

Ten: Universally recognized. As preferred as Bluetooth is, it was easy to make it a worldwide, universal standard. With the backwards capability, you will only see Bluetooth technology blossom and redefining wireless communications.

I’ve always enjoyed mobile computing or the ability to do computing tasks with my mobile devices anywhere. Mobile computing has given me the flexibility to multi-task and maximize my time. Unfortunately, it hasn’t always been a great experience.

Here are some of my good and bad observations in mobile computing.

The Good

• Being productive during down time. Obviously, being able to work virtually anywhere is the best benefit of the mobile computing. There are times when you want to do some work when you have some down time, like when you’re waiting for your flight, waiting for someone in a restaurant, and other waiting activities.
• Being able to work when you least expect it. There are times when you suddenly need to do some report, respond to an important email, or send a file asap. During these times, it’s reassuring to know that you can just power on your mobile device and start working! Globalization has made working with co-workers from other countries and different timezones a necessity. As a result, your working hours is oftentimes disregarded by your foreign counterparts.
• Being able to play my multimedia collection anywhere. All work and no play can may you a dull person.

The Bad

• Rest time is no longer rest time. Although we can do some tasks on our computers during our rest time or down time, it also takes away actual time for rest. Our minds and bodies need time to calm down and recharge, too.
• Work-Life Imbalance can happen. This is another sad consequence of mobile computing. Because we can do our work anywhere, we tend to work at home. When we do work from home, or when we bring home our work, we eat up time we can spend for our family, or for personal time. This imbalance often results in workaholism.
• We become connected 24/7. As cool as it may sound, being connected 24/7 is not healthy. Being connected all the time can keep you up all night resulting in lack of sleep. Lack of sleep has been proven to cause a lot of sickness. Another ill effect of being connected 24/7 is the one mentioned in the previous bullet point: work-life imbalance.

There are more good and bad observations about you may think of about mobile computing. The negative aspect of it can be fixed by setting your priorities straight and developing self-discipline. And, like most things in life, moderation is key.

A laptop privacy screen filter can either be an accessory for your computer screen or a necessary piece of equipment for your notebook computer that you should have with you at all times when computing in public areas. Multiple reasons will dictate your decision to employ a laptop screen filter for privacy. All these factors really center around keeping your information private.

With the advent of laptop computers, computing doesn’t have to happen in private places like your home or a computer lab. At these places, you can expect a certain level of privacy that your information isn’t going to be seen by other people. However, this is no longer true when working on your laptop in public areas like coffee shops and internet cafes.

Certain online activities as well as the concern for intellectual property dictate that a laptop privacy screen be employed to protect your information from being compromised. For instance, mobile banking is no possible from any computer. This financial information is the ultimate private information. Although it is not advisable to do this over public networks, people still do this because of their confidence in the security of their banks websites.

Seeing content that you want to keep to yourself is definitely important, but the most important thing that a laptop privacy screen can help with is keeping your passwords secure. It is true that people can watch your keystrokes, but this can be covered as well. But if they can’t see your screen, that’s another security step. Also, this will prevent them from seeing your login username as well.

One of the main groups of mobile computer users that you’ll see with privacy screen filters on their laptop computers are business men. These power users are traveling all over the world while analyzing and working with their clients financial numbers; organizing them into reports and presentations. All this proprietary knowledge needs to be kept secret, so using every form of security possible is mandatory. They even have access key generators to supply them with passwords that are constantly changing. Using a laptop privacy screen in this setting comes with the territory and is second nature to these corporate individuals.

Even if you’re not a financial analyst carrying around intellectual property for multi-million dollar companies, you can still benefit from laptop privacy. To some, even protecting their web surfing habits is important. So, as you can seen a privacy filter is a simple method used by different types of people to protect their information from view while on their notebook or laptop computers in public.

Have you ever looked at the “top 10” lists within Apple’s App Store and noticed that over half of the apps earning the most money are free to download? How can this be possible?

Several years ago, the App Store introduced a new feature that allows developers to charge customers from directly within their applications – with the customer’s connect of course. This feature took a while to catch on, but it is now one of the top profit strategies for many developers, and here’s two strategies that have proven highly effective for developers:

Free Trials

The App Store does not directly allow free trials of games/apps to be downloaded. But with in-app purchases, developers are able to effectively offer users a demo and trial of their apps at no cost. During 2011, the App Store saw a big rise in this strategy. A game developer can offer a free download of the full version of their game with 1/10th of the levels unlocked. If the user enjoys the game, they can purchase all the other levels – right from within the app – for the original price of the game.

This has numerous benefits for the developer. Most notably, it allows them get their game in the hands of vastly more users than would otherwise be possible. Since users can download apps for free, they are more inclined to try it out, and hopefully, upgrade later.

The “Freemium” Model

Another popular strategy for in-app purchases is the “fermium” model where the app is free to everyone, but those who use the app regularly can upgrade for more features. This is widely used by developers of utilities, such as photo editors, where most effects are free, but additional filters are available for $0.99. Again, this allows many users to benefit from the app, while still earning revenue from those who use it enough to be willing to pay.

The “Currency” Model

Finally, we’ll look at perhaps the most effective in-app purchase strategy of all. This one is used primarily by developers of social and strategy-based games. Much like the above strategies, the game is free to download and play by any user, but the games offer something such as Smurf Berries (Smurf’s Village) or Magic Beans (Trade Nations) that are essentially “currency” within the game. Most games offer users ways to earn free currency, but for the users who want to progress faster or achieve more, in-app purchases of these items will enhance the game-playing experience.

For developers, the rise of in-app purchases has created more opportunities to generate substantial revenue from their work, creating more depth and quality within the app store.

Ever been in the situation where you’re out to get a laptop, and when you finally come across a selection of laptops with their configurations display you just didn’t know what to make out of them? Fear not, in this guide I will reveal a few simple things which will make understanding those scary specs a lot easier.

First of all, you have to ask yourself what the purpose of your soon to be laptop is. Is it an everyday use laptop, used to write papers and just carry it around to surf the web… something like a laptop a student would require? Will it be the business machine where you keep all your sensitive information such as client names and contact information? Perhaps you like computer games a lot and decide to buy a laptop configured to run these new high demanding games. Or, maybe you just want to own a new entertainment and media portable device to satisfy your daily multimedia desires.

Each of these types of laptops has different specs to them, but since you know what you’ll be using it for, here are a few basic steps to understanding what specifications work and where they are needed.

Central Processing Unit (a.k.a. CPU a.k.a. processor)

Perhaps one of the most important spec of all in a laptop is its CPU. This is the heart of the laptop where all the calculations are being done. There are several types of processors out there, in almost every price range you might think of. If you are new to hardware, you should look for something like 2 – 3 GHz in a laptop if it will be destined for everyday use (basic office tasks including Microsoft Office Suite, browsing the web, watching videos online or maybe chatting with friends). A decent single core CPU could probably handle such basic tasks flawlessly. If, however, you wish to multitask, and open up several applications to work with, then a single core processor might not handle such loads perfectly. Instead, look for the ones which say they’re dual core or even quad-core configuration laptops. A laptop with a quad core configuration can go pretty high regarding the price tag, so make sure you fully understand the use of your laptop beforehand.

Newer lines of processors have the Hyper Thread technology built into them, where a single core is seen as two cores by the operating system, capable of handling two tasks at the same time per core. These can be quite useful if you know you’re going to throw a heap of applications at it and expect the laptop to run perfectly. Such a configuration can be used in machines destined for graphic design, where usually 3-4 applications are being run simultaneously. It would also be handy when looking for the best gaming laptop or your new multimedia laptop if you want to experience the peak of performance and visual quality in your media crunching endeavors.

Random Access Memory (a.k.a. RAM or system RAM)

Along with the processor, the overall value of the system RAM is a very important parameter to watch for in your laptop. Think of it this way: RAM is your systems memory, the place where your operating system and all your installed applications are being run. It’s fast because every little bit of information can be addressed directly, unlike the hard drive which requires the disk head to run over a place on the disk where the information is stored. RAM is the canvas of your computer system, a place where you can get the full picture of what’s being run at the present time (using the same association, one could say that the hard drive is like a cassette, where if you want to hear a certain lyric, you have to fast forward to that location).

That’s about enough of the free association thing. Going back to the spec itself, system RAM is something you want to have plenty of. The more RAM in a computer, the better it will run. If you’re a newbie and just want a laptop that can do basic tasks, then about 1GB of RAM should be enough to run basic applications without any problems (Microsoft Word, PowerPoint, Excel, music player and even watch movies). However, if you demand more from your laptop and intend to use it like a powerhouse, your minimum aim should start at about 2GB. Up to 4GB of RAM is a good start in any graphic design computer or even a decent gaming laptop. For business laptops which could use complex applications, a good start would be in the 2-3 GB range to ensure everything runs smooth.

Just remember never to neglect this spec, since it could mean your system will be running slow if there’s not enough RAM to it.

Hard Disk Drive (a.k.a. Hard Drive or Hard Disk or HDD)

The hard disk is where all your information is stored. Unlike the RAM, which gets wiped clean at each restart, the hard drive will keep all your information for later use. Now this is not such an important spec as the RAM is, but the more drive space you have, the more information you can store and take with you. If you’re a media junkie, then you probably like to store a lot of music and movies on your computer to watch at a later date. In this case, you should look for a laptop with a decent HDD configuration (250 – 500 GB). Some hard drives retrieve information pretty slow since they use spinning disks to read and write information. Standard rotation speeds for laptops HDD are at about 5400 rpm (rotations per minute). These drives are pretty much obsolete if you want a laptop with that’s capable of top performance. Instead of a 5400 rpm HDD, look for a better one with 7200 rpm.

A new line of hard drives has recently appeared, called the Solid State Disk or SSD. These drives don’t use spinning disks as a means to store information, are way faster, more durable and lighter than regular hard drives. They do come at a price though, and with a limited storage capacity. It can become pretty clear that if you want the fastest laptop today, you’ll opt in for such a storage device instead of a traditional HDD.

Video Card (a.k.a. Graphics Card)

The video card makes sure you get the image onto the screen. It can be considered an output component and it is very important to those who want serious lifelike graphics displayed onto their computer screens. With regular everyday use laptops, you can probably get away with an integrated graphics card (it’s integrated into the motherboard, mind you) which uses the available RAM to run. This can be a downside to laptops which have a low RAM spec to them, since the integrated graphics card takes its share of available RAM leaving the difference available to run applications. An integrated video card is not recommended if you rely heavily on system RAM for optimal performance. Such cases include the graphics design laptop, the gaming laptop and in some cases multimedia machine.

You do want to look for a dedicated (replaceable/removable) graphics card in your laptop if you’re a big gaming fan. Newer games tend to have very high system requirements, and since available RAM is not a thing you want to waste, a dedicated graphics card is the best solution to such a machine.

It should be noted that some of the newer processors that have just come out in the market do have an integrated GPU (graphics processing unit / graphics card) in them, along with the processor cores. This means you can get away with such a spec if you intend to purchase a laptop with specs designed for everyday use or ultra portability. Eliminating the dedicated graphics card from your system means your system will be lighter and you definitely want that regarding the portability issue.

Laptop Screen (a.k.a. Laptop Display)

The laptop screen is an essential part where you marvel at the rich media the computing world has to offer. There is not much to say about the display technology in this case but its size. The display size of your laptop is one essential specification you should not overlook if you really want a higher level of enjoyment when working with the thing. There is quite a variety to choose from when it comes to screen size, so you should know one thing beforehand: the larger the screen, the better the image quality will be, the lower the portability feature becomes…

If you want a highly portable machine which you’ll use just to jot down information quickly, then a tiny laptop with a small screen would be enough: these can range from a mere 7 inch diagonal size to about 13.3 inches. Average laptops will carry the average laptop screen size which is known to be 15.4 inches. This is quite sufficient to be able to visualize pretty much any type of media (web pages, documents, videos and movies). For a better experience, these sizes can go up to about 22 inches. These can be quite bulky and costly machines, since they pack quite a lot of tech in them along with the large screen, thus they make excellent gaming systems or portable multimedia players.

Connectivity (a.k.a. access to the internet)

Laptops are known for being portable machines, and along with their portability, wireless technologies have been made available to allow the users to connect to the internet pretty much anywhere these days. You want to make sure you’ll get access to Wi-Fi networks to stay connected everywhere you take your laptop with you. There are some new solutions which allow you to connect via cell phone networks and use the internet wherever there is mobile phone coverage.

All-in-one computers are just like desktop computers only they are more compact. Instead of having three components: the monitor, CPU and the input devices, a mini computer only has two or one because the CPU is already inside the monitor’s case, or within the keyboard.

These kinds of computing devices are easy to move around and take up less space than conventional computers. They are generally more portable than conventional desktop PCs and most of them even have a special carrying case included in the package or are built into the unit itself. Wiring and physical installation is also easier because you only have to connect the keyboard to the unit and plug it into a power source.

The biggest advantage that all-in-one computers have over conventional PCs is the size. They can fit in areas that don’t really have much space. If you want to save up on desk space in your office, getting a compact computer will work better because it frees up the space where the system unit should have been.

Contrary to popular belief, individuals who use smaller computers are able to upgrade the memory and storage capacity of their unit, minimizing the need for external storage hardware.

More advanced users who need more computing power can easily use additional tools like external CD/DVD drives. They can also install different kinds of software to get more out of their mini PC. However, for a consumer who only needs basic stuff like word processing, filing, storage and Internet connectivity, a mini computer is an ideal option.

iPhone is an incredible machine,but when everything goes wrong it’s hell. Here are some tips, that will help you solve the most common problems.

1) I lost all my contacts!

Re-import those who are in the SIM card. Go to: Settings / Mail, Contacts, Calendars / Import SIM Contacts.

2) My touchscreen is crashing for no reason!

It might be the case that your touchscreen might act out and not let you start apps. This is caused by the proximity sensor. The sensor is malfunctioning, and is wrongly detecting the phone as always being in call mode. You must tap the phone at the top left side of the device. Restart the iPhone and voila!

3) My iPhone fell into water

First thing you need to do is turn it off. You must then wait until all water has evaporated before turning it back on. Speeding the process up by using a hairdryer is not recommended. You should rather leave your phone in a warm room, with a temperature not exceeding 40 Celsius degrees. After a day or two, you can try turning it back on. If the water in question is pure, the odds of your phone working are higher. An iPhone that falls in seawater is less likely to work again.

4) How to recover a completely crashed iPhone?

Switch to DFU mode. Connect the iPhone to the computer and start iTunes. Press and hold the main button-Home button-and the “On/Off” button for 10 seconds.

After these 10 seconds, release the “On/Off” button but keep holding the main button until iTunes displays that it has detected an iPhone in recovery mode. You should then release the main button. To exit DFU mode, disconnect the iPhone and press the “On/Off” button to restart it.

5) What to do when your iPhone screen is blocked?

Some users have their very own solution: “tap 3 fingers on your screen for 2 or 3 consecutive times, but not too hard.”

6) I lost my apps after an update!

Open iTunes, connect your iPhone, click the “File” menu and transfer your purchases.

7) The “Home” button doesn’t work anymore!

Try calibrating your “Home” button.

Open an app-doesn’t matter which one- then press the “On/Off” button until the “slide to power off” slider is displayed. Release the “On/Off” button, then press the “Home” button to return to the home screen.

This procedure calibrates the “Home” button. If the problem persists, it could be a hardware issue, resulting from dust inside your phone for example.

8) My iPhone won’t turn on!

Try resetting it. Press and hold the “On/Off” button and the “Home” button for a few seconds until you see the Apple logo. It could be that your battery is drained. So before that, recharge or connect you iPhone.

9) Ever since I installed iOS 5.0.1, my iPhone keeps rebooting, what can I do?

Remove the SIM card from your phone. Activate 3G and Cellular Data and reinsert the SIM card.

10) I can’t connect to the internet, weird uncontrollable issue!

In iOS4, there are some wifi connectivity problems where certain conditions apply. If, after having tried the solutions put forward in this chapter, you still encounter the issues, you must update the phone. These problems were solved by Apple with the iOS5 update. Updating your system is therefore a more reliable solution.

If you are looking for Bluetooth headphones that perfectly fuse wireless mobility and stereo quality for voice calls, the Sony DRBT101/WQ Stereo Bluetooth Headset is worth looking into. That is, if you won’t mind wearing an over-the-head set.

There are several headband-type (also known as over-the-head type) of Bluetooth headphones on the market today. You can easily recognize them because their earpieces are joined by a headband, which goes over your head. That’s how the headset stays in place. The earpieces cover your ears, thus keeping the sound in. The Sony DRBT101/WQ Stereo Bluetooth Headset is such a headphone, and more.

Wireless mobility and convenience are where the Sony DRBT101/WQ actually stands out from among the other Bluetooth headsets of its kind. Using Bluetooth’s multipoint capability, the unit can bond or pair with several Bluetooth devices simultaneously. Thus, you won’t need to unpair your movie player when a call comes in through your mobile phone. More than this, the unit has a wide range of support and compatibility for many Bluetooth devices such as mobile phones, iPod Touch, iMac, and MacBook Pro. It even works flawlessly with Skype.

A lot of people actually prefer the techie look of a headband-style Bluetooth headphone, but when they experience the features of the Sony DRBT101/WQ, they often shop no further. Although the stereo sound quality has been often described as lacking for the audiophile’s discriminating ear, this device provides adequate quality overall sound with good bass levels. Often, this can be sufficient for everyday use.

This model is designed for use as a headband earphone, so it may not be a great choice for use when you need to make rigorous physical movements. For example, you can try to use it at the gym or while you are jogging around town, but expect it to slip off your head at some point. Headband sets just are not designed for such kinds of usage. And, neither will the Sony DRBT101/WQ even attempt to satisfy you in that area.

Another important feature that makes this model worth its price is the longevity of its battery power. Most Bluetooth headsets will give you only a few hours of talk or play time. Yet, the Sony DRBT101/WQ can provide you with battery power that can last, on the average, up to two days. This simply means less frequent recharge cycles for the battery.

In sum, the Sony DRBT101/WQ Stereo Bluetooth Headset is a great choice if you are looking for Bluetooth headphones that combine convenience, decent sound quality, and reasonable price.