Rackmount Chasis

Rackmount chasis is a frame that can fit into 19 inch rack and is used for gripping electronic modules such as, hard disks, and processors.

Different types to fit your needs

On the basis of your requirement or condition, when you are looking for ways to ensure safety of your electronic modules, you can select from the following various kinds of rackmount chassis:

• 1U: Can fit in a single shelf on the track. They are proficient enough to support single and dual processors as their size is nearly1.75 inches high. In addition, they posses the lowest chassis profile.

• 2U: This kind of rackmount chassis can cover 2 shelves of your rack. They are competent of supporting quad processor systems and they also posses double the capacity of the 1U. Their depth is approximately 24 inches and they are 3.5 inches high.

• 3U or 4U: when you require 3 to 4 shelves, then the 3U or 4U chassis is the best option for you as they are absolutely suitable for cluster applications that need the use of various I/O cards, video cards, and high-speed networks.

Things to consider

Just keep in mind whether you choose 1U, 2U, or a 3U/4U; ensure that they well matches with your rackmount server. One should also consider the type of cluster application they need prior to arriving a decision on which kind of server will meet their objectives. In addition, select a chassis that is made of aluminum or steel to make sure resistance to heat and extreme changes in temperature. Bear in mind that a durable chassis will safeguard your electrical modules particularly during shipping and handling.

An Introduction To Data Center

Computer systems are too tricky to operate and maintain thus require a special environment to function well. And as a result data center came into existence.

In most IT operations, the crucial aspect of the organizational functioning is the management of the cabling power and heat generation. Data center being the main factor and facility used to house computer systems and associated components, such as telecommunications and storage systems. It generally comprises of superfluous or backup power supplies, redundant data communications connections, and security services.

As lot of cables are required to connect all the parts. Along with data centers, also introduced were elements such as standard racks to mount equipment, elevated floors, and cable trays were installed overhead or under the elevated floor. Focused on the type, number, weight, diameter, etc., one should choose the cable guides to supply the optimal solution. Based on the cables, there are various inside rack cable management solutions as well as patch panels, managers with fingers, loops, rings, and outside rack solutions with ladder racks, cable trays, cable runway, etc.

Power is also one of the other factors that hold importance in a Data center. Present are several levels of power units generally 15, 20, or 30 amp required to supply power to the switches and servers mounted in the racks. Basically, these units differ from basic multi-outlet power strips without breaker or switch to multifunction units including amp meters, temperature, and moisture sensors.

To maintain heat control, server rack cooling in the datacenter rack space depends on the number of switches and servers, as well as the arrangement of the Rackmount server cabinet and cables. The size and layout of fans and blowers installed in the racks influences the efficiency of cooling. Selecting the right server rack will help effectively power, cool, and protect your equipment.

Rackmount Computer Keyboards

Keyboards are the most vital part of your computer and needs to be protected from all harmful environments. In the performance of duties, your keyboard gets grimy with soft drink spills, coffee, tea, or cigarette ashes which eventually harm the functioning of your keyboard. The keyboards must be built of materials that will not get inclined to rust or corrode, will not malfunction in extreme heat or cold in order to continue working without any messy occurrence. To avoid such situations one should use Rackmount computer products that are known for their consistency, and durability.

Rackmount computer keyboards are built with durability and reliability. These high quality keyboards have been designed to withstand harsh environmental conditions including shock, vibration, extreme temperatures and dust. Made of high grade aluminum alloy, steel and acrylic, Rackmount computer keyboards are low weight and durability. They are competent to EIA-RS-310C specifications for the industrial environment with anti-rust chassis, waterproof keypad and anti-shock functions to safeguard the internal electronics. These computer keyboards slides easily into any 19 inch standard rack. Founded on the principles of superior innovations, compatibility and durability, Qtronix keyboards were soon registered as the premium keyboards of Rackmount computer keyboards. Manufactured to the highest standards available, the Qtronix is made to operate without failure under extreme circumstances.

For its high compatibility and durability, there is an increase in the demand for Rackmount computer keyboards in the market. These keyboards are mainly seen top quality products used by government, military and medical clients.

Rackmount Computer Products – Environmental & User Friendly

At home or office, Your computers are under attack by on element or the other right from spilling of food and drinks, munchies like food crumbs, sticky fingers, and many other unpleasant circumstances. Computers are also easily prone to get harmed by environmental factors like dust, shock, and vibrations. Which is precisely why Rackmount computer products came into evolution. Rackmount computer products came into existence in the mid 1970’s. Every part of these products are precision –made and are basically designed to combat such harsh environmental conditions. Basically, they are designed to safeguard delicate computer equipments from any such damages during vibration and usage.

Altering the character of technology, Rackmount computer products present a wide range of seamless combinations of merchandise options. They are designed perfectly for organizations, home offices, helping you work more comfortably, systematically, and get productive. Rackmount computer product accessories normally comprise of dust covers, keyboard drawer, mouse mats, chassis, and other cleaning products. They also consists of batteries, desktop accessories, monitor enclosure, and disk organize arrangements.

For business purposes, many organizations need to cluster one type of server in with similar kinds; Rackmount computer cases or server cabinets are generally used. These cases can hold approximately 40 single servers. They highlight common temperature-monitoring systems, linked drive bays and up to a maximum of 10 air-bearing fans for optimized cooling. In all, Rackmount computer products are mainly known for their scalability, durability, consistency, and control of revising.

Large Screen Television Technology

A large screen television is the dream of all entertainment enthusiasts. How about spending an evening watching your favorite movies on television? It will be no less than enjoying ultimate luxury at the comfort of your home as the quality of picture and sound is similar to that of miniature cinema hall. Although there are several flat screen technology, but only the liquid crystal display (LCD), plasma display (PDP), digital light processing (DLP) has been introduced to the consumers. Large screen television technology has outshined cathode ray tubes (CRT) in the television space, primarily because of its large size and the recent craze of buying flatter television.

On the other hand, forthcoming technologies such as, Organic light-emitting diode (OLED), Surface-conduction Electron-emitter Display (SED) or Field Emission Display (FED) are paving the way to substitute the first flat screen technologies in terms of high quality picture.

The following are significant factors for assessing television displays:

Display size: This stands for the diagonal length of the display.

Display resolution: This stands for the number of pixels in every dimension on a display.

Dot pitch: It enables sharper images as there are more pixels in a given area.

Response Time: It refers to the time taken by the display to respond to a given input. Quick response time can make better transitions in displaying moving objects devoid of useless image artifacts.

Brightness: It refers to the amount of light emitted from the display.

Contrast Ratio: This is characterized as the ratio of the luminance of the brightest color to the luminance of the darkest color on the display.

Aspect Ratio: Refers to the ratio of the display width to the display height. The aspect ratio of large screen televisions is 16:9 while that of traditional ones is 4:3.

Viewing Angle: It can be described as the maximum angle at which the display can be viewed with high quality.

Color Reproduction/Gamut: It refers to the range of colors that the display can perfectly represent.

References : -

"How LCDs Work." Howstuffworks.com. HowStuffWorks, Inc. 20 Mar 2007
"How Plasma Displays Work." Howstuffworks.com. HowStuffWorks, Inc. 20 Mar 2007
"Plasma Display." Answers.com. Answers Corporation 20 Mar 2007
"Plasma Display Panels." Plasmacoalition.org. Coalition for Plasma Science. 20 Mar 2007
"How Projection Television Works." Howstuffworks.com. HowStuffWorks, Inc. 20 Mar 2007
"Rear-Projection Television." Answers.com. Answers Corporation 20 Mar 2007
"Front-Projection Television." Answers.com. Answers Corporation 20 Mar 2007
"Rear-Projection Television. What You Need To Know." About.com. About, Inc. 20 Mar 2007

Examples of Volatile Flat Panel Displays : -

DLP (Digital Light Processing)
Plasma displays
Liquid crystal displays (LCDs)
Organic light-emitting diode displays (OLEDs)
Light-emitting diode display (LED)
Electroluminescent displays (ELDs)
Surface-conduction electron-emitter displays (SEDs)
Field emission displays (FEDs)
Nano-emissive display (NEDs)

Comparison of television display technologies

Although both LCD and Plasma displays are available in the form of slim flat panel displays, but if seen from a technological point of view, these two flat panel displays process the image in an absolutely diverse manner.

There are several considerations one has to take into account when choosing the display technology. To help you in making judicious decision here is a list of merits and limitations of each display technology with respect to your specific needs.

LCD

Advantages

LCD boast of some distinct advantages over other kinds of display technologies that includes, slim profile, light weight, reduced power consumption, un-vulnerable to burn-in, neither spew harmful electromagnetic waves nor suffer from glare in bright rooms and can be easily mounted on a wall.

Disadvantages

There are de-merits of course, restricted viewing angle, limited contrast ratio, slow response time, poor reproduction of black color, chances of defective pixels and last of all but the most significant: high price.

Plasma display

Advantages

Plasma TV offer several advantages over competition such as, they are slimmer and lighter, presents better color reproduction than LCDs with an amazing offering of 16 million color on standard screen, produce deep, true blacks, wide viewing angle, relatively cheaper than LCDs.

Disadvantages

Unfortunately, plasma televisions have a few limitations such as, prone to burn-in and image retention, chances of defective pixels, phosphors lose brightness in the due course of time, sizes smaller than 37 inches are unavailable, vulnerable to reflection glare in bright rooms and need active cooling.

Projection television

Advantages

Projection TV’s are relatively cheaper than their flat panel counterparts. The high quality picture in Front-projection is similar to that of Movie Theater. Front-projection occupies very little space because a projector screen is exceedingly slim, and can even run on a suitably prepared wall. Displays are available in exceptionally large sizes of up-to hundred of inches.

Disadvantages

Smaller viewing angle, susceptible to glare, lamp requires to be substituted after heavy usage, bulkier than flat panel televisions and are difficult to set up as the projector is separate and must be placed in front of the screen, usually on the ceiling.

Digital Signage Issues

Though Digital Signage (through LED ticker signs and LED video walls) has been in vogue for decades in the past it has however, not yet become a major public medium. The following are the likely reasons:

** Uncertain ROI: The cost of deploying digital signage currently stands prohibitive. Not only are large outdoor screens expensive (the LED signs in front of the Las Vegas Wynn Resort cost $15 million, for example) but much more common & cheaper form of digital signs based on LCD and plasma screens still represents a significant chunk of investment when a large network is planned. For example, the cost of installing one screen in a single restaurant in a large fast-food chain runs to millions of dollars. Any such investment has to be justified by a clear ROI plan before receiving approval;

** Unproven advertising effectiveness: Like the Internet in the early 1990s, the digital signage medium has not yet been widely accepted as a cost-effective advertising medium compared to the traditional means (TV, radio, flyers, etc.);

** Lack of proven technology –The technology used today has largely been originated from consumer-grade personal computer and DVD technology, which has not been designed to stand up to 24x7x365 pattern. Today, the demand by professional digital signage is 24x7x365 usage. Often under stress these systems can break, resulting in damage to brand image and liability disputes between advertisers and network operators.

The above issues are being addressed in the following ways:

** ROI: Studies have shown digital signage to be effective in aiding customer recall and retention of displayed information in large-scale merchandising applications, especially taking into account the downward trend in LCD panel and playback device prices. Today a small-scale retail or restaurant digital signage installation can be implemented for just $4-6,000, whose ROI may be realized immediately.

** Outdoor advertising picking up momentum – advertising dollars have been consistently shifting from traditional media such as TV and radio into outdoor advertising, creating a double-digit-growth new advertising segment which includes digital signage. However, ad agencies are still slow to explore the potential of out-of-home TV.

** Development of dedicated platform solutions – new technology has been developed that features reliability magnitudes greater than consumer-grade technology. Like professional TV broadcasting systems, the new technology enables worldwide content distribution and playback to stand up to the test of time.