Embedded DVR

In most surveillance operations using a DVR, the commonly used method is to link the DVR card to a computer containing the software. This has serious limitations in the event of a virus attack or power failure, because the surveillance system could be thrown off gear. In order to overcome these problems, a new type of DVR called the “embedded DVR” has been launched.

The embedded DVR works with very little or no help from the computer. It is a plug and play meaning that installation is very easy and recording can start as soon as the device is installed. Embedded DVRs can support 4-16 cameras, and a television screen can be added for viewing live pictures. Embedded DVRs provide all the features that come with computer based DVR systems including network support options that allow you to share the recorded data. The motion of the camera can be controlled based on motion and playback and search option are also available.

Embedded DVRs can be programmed to record at specific times. With an alarm facility available, fast detection of any intrusion can be detected. On integration with a web server, remote audio/video monitoring and recording is facilitated. Data storage is usually in MPEG format. If there is a problem with storage, a back up plan is activated where by the data is written onto CD disks. Embedded DVRs also have remote storage facility meaning storage of information can be done at a location away from where the input device is located. This can minimize data pilferage or theft.

Embedded DVRs are now used extensively in the transport sector. Specially developed embedded DVRs have in built features like impact resistance, shock & and vibration resistance are now found in trucks, school and city buses, airport shuttles, cars, taxis, etc. These DVRs are compact and take inputs provided by camera located in different parts of the automobile. It can also provide the driver with a view of the road andor passengers at all times. In such a system, the storage device is often a replaceable hard disk drive. In some cases, a USB mobile hard disk enclosure is also provided. Use of DVRs in public and private transport devices can increase the security of passengers and cargo.

With enhanced emphasis on security, embedded DVRs have become an irreplaceable component of industrial and corporate security systems. In the near future, the embedded DVRs may find new applications many areas. The full potentials of this device are yet to be realized and it may not be a surprise to see them used by everyday people for everyday living.

Financial Strategies For Troubled Firms

There are strategies that troubled companies can use to save themselves from dire straits and regain their former financial success. These same sort of strategies are valuable for business owners and financial executives to understand how their firms can avoid financial turbulence and failure.

We must first realize that business failure or bankruptcy never happens overnight. Normally there is a gradual trend of financial deterioration that is sometimes exacerbated by industry troubles. No doubt in the current 2009-2010 environment the auto industry is a poster child for a troubled industry, as an example.

Naturally firms that are on the very precipice of failure or bankruptcy do not have many options or time left. It has to fix itself, or sink. No business owners or entrepreneurs want to face bankruptcy, liquidation, and other creditor issues.

Do financially failing firms survive because of a revival in products or their services, or have they in fact executed on improved financial management. This is a challenging questions, because the very financial problems that beset a firm hinder it in getting new sales, acquiring inventory, and regaining supplier credibility.

Also, lets be realistic, banks and other finance companies do not throw themselves at failing firms with financial offers of loans, lines of credit, etc. In fact what usually happens is that the company is forced to pledge some or all assets at much higher rates, sometimes simply accentuating the financial problems that were already there.

So what are the financial strategies that a firm can undertake to avoid financial failure when it has been losing sales, not generating profits, and generally traveling down a potential death spiral?

There are three or four solid strategies that can save the firm. The first is ‘ assets ‘. The second is liabilities and debt, and the third we will simply call ‘ maneuverering ‘.

Strategy 1:

Assets have value. They can be sold, re financed,, or pledged to secure new financing. This type of strategy works best when it works for all parties, the company and the lender, or the company and another firm. However lets be clear that this is somewhat of a one shot strategy. It either must work or it doesn’t. Asset maneuvers have 3 stages of success: assets can be used to get a new loan, assets can be sold, or they can, in somewhat of a worst case scenario, be liquidated.

Strategy 2:

On the other side of assets on the balance sheet is debt and equity. Debt can be structured properly to ensure the lender gets a reasonable reward, and the company is able to both repay and survive. There are too many types of debt to consider for the purposes of this article – suffice to say that creativity in debt is somewhat unlimited. A firm could issue debt, as an example, and repay only when the company is earning profits again.This would normally entail higher rates, but again, as we have stated, the transaction has to make sense both for customer and lender. A solid alternative solution is to simply re – structure existing debt at new rates and amortizations.

Alternatively to debt a company with promise can bring in new equity or ownership. This is somewhat more risk for all as dilution of ownership is usually significant when a company is failing and bring in new equity capital.

Strategy 3: A firm sometimes has to look to the outside for help. Since the owners and managers are often too close to the problem it is somewhat of a classic case of not seeing the forest for the trees. Outside consultants and industry experts can often bring a solution to the table. They have insights that management simply did not possess. These strategies include developing new sales and product strategies, bring in new management, or considering a strategic merger.

In summary, anyone who has worked through several business cycles over a number of years knows that companies can in fact be saved. Some go on to be the new super stars of their respective industry. The company must clearly uncover what the problem is, and then adapt strategies, financial or otherwise, to fix those problems

A Guide to PC Memory

When it comes to improving the performance of your PC, purchasing additional RAM is despite the least expensive yet most effective route a person can take. While the solution appears simple, the dizzying array of memory available for purchase today can make the actual decision process problematic for all but the tech-savvy individuals. A very wide selection of differenting RAM types are available for purchase today, SDRAM, EDO, RDRAM, and DRAM to name a few. Knowing how to determine what RAM types are compatible with your current PC setup and what RAM choice will give you the greatest performance are key to making the correct decision.

The purpose of this guide is to give the reader a general understanding of what RAM is, what types of RAM exist, and how to decide what RAM would make the best purchase choice.

What is RAM?

The acronym RAM stands for Random Access Memory. RAM is where data is stored within your PC so that said data can be accessed by your PC's processor, or CPU. RAM should be considered as temporary memory within your PC, in order for RAM to maintain its data storage it must receive a continuous pulse of electricity. Any data that exists solely within a PC's RAM will be deleted when the PC is shut off or loses power.

PC's utilize several common technologies to store data internally on a more permanent level than RAM. These storage mediums include ROM – Read Only Memory, Hard Drives – which store data magnetically in a permanent – or depending on your usage – semi-permanent fashion, CDRWs, DVDRWs, Floppy Disks and Tapes. All of these data storage methods can be considered more reliable than RAM data storage, although none of them offer the speed of data access that RAM does.

RAM stores data that is essential for a PCs immediate operation and does so in an extremely fast and reliable way. RAM allows for a PC to operate at speeds that would be unachievable if it were replaced by more permanent data storage mediums. Think of RAM as a "fast lane" on an expressway. RAM allows for a function or application's most important data to have the fastest possible access to the processor. RAM exists as a "fast lane" for data that needs immediate attention by your PCs CPU. As such, the more RAM your PC has accesses to, the more "fast lanes" that are available for your PC's functions and applications to access your PC's CPU, the faster your PC will perform.

Types of RAM

SDRAM, DDR-SDRAM and RAMBUS are the three major types of RAM, or PC memory, in use today.

Modern RAM

Before the introduction of SDRAM, PC memory is operated asynchronously from a PC's Clock Speed. This asynchronous operation would create data bottlenecks within a PC itself and slow overall performance. Clock speed is the speed at which a microprocessor executes instructions; Every computer contains an internal clock that regulates the rate at which data is processed and synchronizes a PC's individual components. As it stands to reason, the faster a PC's clock speed, the faster a PC's CPU can process data. Before RAM was synchronized to operate at the same speed as the rest of a PC's components, a PC's CPU would be would be forced into the occasional delay while waiting for the RAM to be available to accept data. In theory, as long as SDRAM operated at the same speed as the system clock, it would be available to the system on a regular and consistent basis – thus eliminating data bottlenecks. By regulating RAM and tying its performance to the system clock, memory manufacturers have been forced to increase memory performance to match PC clock speeds.

SDRAM:

SDRAM – Synchronous Dynamic Random Access Memory – was the natural result of the PC industries search for better RAM and PC performance.

SDRAM is available 66, 100 and 133MHz speeds, known as PC66, PC100 and PC133 respectively. 66MHz RAM, in theory, would perform 66.6 million cycles per second and would be compatible with a 66MHz clock speed. Generally memory is considered to be backward compatible, so a pc with a clock speed of 100MHz could accept a memory module with a clock speed of 100MHz. The drawback being that the memory will only operate at the 100MHz speed.

SDRAM is no longer the memory of choice for modern PC's, however, due to the many PCs still on the market that utilize SDRAM, it is certain that memory manufacturers will continue to produce this memory for some time. SDRAM has been in the marketplace for some time and as such is widely available for purchase as a used yet guaranteed product. This used availability offers the buyer the opportunity to save a great deal of money on its purchase, yet sacrifice a bare minimum with regard to reliability as RAM has no moving parts and is generally very durable and long lasting.

DDR-SDRAM:

DDR and DDR2 – Double Data Rate SDRAM – was again a natural result of the PC Industries search for better RAM and PC Performance. DDR memory has been available since the late 1990's and is a great leap forward in RAM performance. Essentially, DDR RAM achieves its improved performance by transferring data to the processor twice, instead of once in the case of SDRAM, per clock cycle. Theoretically, a RAM module that refreshes the processor twice per clock cycle should equate to twice the performance offered by SDRAM. In reality DDR does not really offer twice the performance of SDRAM, however it is a signaling improvement over the older standard.

Types of DDR and DDR2 memory that are available include PC1600 – 200MHz, PC2200 – 533MHz, PC4200 – 533MHz, PC4200 – 533MHz, PC3500 – 400MHz, PC3500 – The first number represents the maximum memory bandwidth, in megabytes, that a RAM module can provide per second. The second number, MHz, is the clock speed that the module is compatible with. As with SDRAM, the memory is backward compatible, a PC2100 chip with a 266MHz clock speed with work with a PC with a clock speed of both 266MHz and 200MHz.

DDR and DDR2 memory are the current standard in the PC industry and will continue to be manufactured for some time. As with SDRAM, DDR and DDR2 types have been in the market for some time and are available as used or refurbished. Both used and refurbished DDR memory can offer substantial savings when purchased while giving the user similar reliability to new product.

RAMBUS:

RAMBUS – RDRAM – was developed by the RAMBUS Corporation and can be considered to be a proprietary version of RAM as only the RAMBUS company manufacturers it. RAMBUS is a high-performance version of RAM generally found in high-end business class PCs. Today very few manufacturers use the RAMBUS standard as DDR and DDR2 memory offers similar, and in some cases better performance. RAMBUS memory can be found in speeds of PC800, PC1066 and PC1200. Usually you can purchase RAMBUS PC800- () the () will contain a number that references the chips speed in nano-seconds, ie PC800-45.

Memory and Performance:

While adding more memory does not ensure faster performance, not enough memory will guarantee slow downs. Having plenty of memory installed on your PC helps to ensure that your PC operates at its peak speeds and efficiency. Adding memory almost always results in a performance boost, especially if you run larger applications or multiple applications simultaniously. It is important to note that if you triple your current installed memory you will not see a three-fold boost in performance. You will almost always see some gain in performance, but you will go a long way in eliminating slow downs.

It will always be my contention and a good rule of thumb that you can never have too much memory. Maxing out you configuration with memory will help to guarantee the peak performance of your PC.

How to Choose Memory:

Choosing memory is dependent on several factors. First is the consideration of compatibility. Whether you are building a new PC or simply adding memory to an existing system, it is of key importance that the memory you purchase is compatible with your motherboard. Most motherboards accept a specific standard of memory, SDRAM, DDR, DDR2 or RAMBUS. To determine what type of memory that your PC will accept, you can either consult your motherboards owners' manual, or, if this is not available, inspecting the motherboard for brand and model number will allow you to go online and determine the compatible memory type .

Generally a motherboard that accepts SDRAM will accept memory modules that have a higher rated speed in MHz than what is specified by the board's manufacturer. For example, if your current motherboard has a clock speed of 66MHz and accepts PC66 SDRAM, you can install either PC100 or PC133 RAM chips. The board will only utilize the memory at its maximum speed however, so a PC133 SDRAM module will only operate at 66MHz speed. It is important to determine what RAM speeds – MHz – that your board is compatible with before making a purchase.

You should also consult either you owners manual or online documentation to determine the maximum memory that your board will support and physically inspect the board to determine how many available memory slots there are. Usually you will want to use the largest and fastest RAM chips that your board will support and fill all available slots with matching memory speeds. For example, your board has three available slots and currently one is in use by a DDR PC2100 266MHz RAM module. You discover that your board will accept DDR RAM up to PC2700 333MHz speeds. If you were to fill the remaining to slots with PC2700 memory, your memory would only function at the speed of the slowest RAM module, in this case 266 MHz.

New vs. Used:

Due to the sheer amount of memory manufactured within the last years, you will find an abundance of used memory for sale. When it comes to getting the most for your money, it should be noted that purchasing used memory is a great way to save money while getting similar reliability and performance as compared to new. RAM has no moving parts to speak of and as such is highly durable and reliable.

Spend some time researching prices between new and used memory modules. If you can purchase used or refurbished modules from sellers who will offer warranties, you may be making a major mistake spending that extra money on new RAM.

A little research on your part can help you to not only ensure that you see the maximum performance out of your PC set up, but also go a long way toward saving you money both in the short and long term.

Copyright 2006 www.hcditrading.com , Brad Calli

The History of Online Shopping

The internet is a fantastic and useful tool. With a click of our mouse we can read today’s news, play an online game and if we wish shop to our hearts content. But when did it all start? What is the history of Online Shopping and what does it mean to shop online?

Online shopping is the process a customer takes to purchase a service or product over the internet. In other words a consumer may at his or her leisure buy from the comfort of their own home products from an online store. This concept was first demonstrated before the World Wide Web was in use with real time transaction processed from a domestic television! The technology used was called Videotext and was first demonstrated in 1979 by M. Aldrick who designed and installed systems in the UK. By 1990 T. Berners-Lee created the first WWW server and browser, and by 1995 Amazon expanded its online shopping experiences.

The history of Online Shopping is amazing. Gone are the days of waiting in traffic and working our way through overcrowded stores. All we need is a computer, bank account, debit or credit card and voila freedom! From books, to cosmetics, clothing and accessories to name a few, shopping online is the answer to the 21st century. Simply find the website that offers the objects of your desire, price and delivery terms and in a matter of a few days your purchase is at your door. The advantages and convenience are obviously predictable as we are offered a broader selection, competitive pricing and a greater access to information in regards to our purchase. Online stores are usually available on a 24 hour basis, and permit consumers to shop at their leisure without any traveling and outside regular business hours!

Another point to take into consideration is that when the internet was first conceived it was not with the ideal that it would change the way we shop. On the contrary the web was created as a tool for communicating, which in time let to the convenience of shopping virtually. The history of online shopping by itself symbolizes the change in our society and has by now become a service used by business and regular shopper all over the world.

Shopping online is easy, fun and secure and has for many taken the place of the Saturday afternoon window shopping at the mail. Still considered as a fairly recent phenomenon, online shopping has without a doubt made the life of countless consumers easier and more convenient. May it be for a home loan, buying car or ordering your weekly groceries, the web has forever changed our outlook on shopping.

The history of online shopping shows to all that a good idea, great presentation, and a desire to offer the best to your customers can make a dream come true. Now considered tried and true, it will be interesting in the next 20 years or so to see where the History on online shopping will take us!