Month: February 2018

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Given the ever-increasing business demands for IT services, physical space is at a premium in many data center facilities. On the other hand, a number of organizations are looking to consolidate their data centers in order to save money, streamline operations and improve energy efficiency.

There are a number of drivers for consolidation projects. In some cases, the organization grew through mergers and acquisitions, inheriting multiple data centers that replicate services. In addition, many organizations have effectively reduced their IT footprint through virtualization and the adoption of hyper-converged infrastructure solutions. These technologies make it possible to eliminate underutilized equipment and replace what remains with smaller form factors.

The rationalization of these services can also facilitate consolidation. This has been a priority within the federal government through the Federal Data Center Consolidation Initiative. Federal agencies have been working to reduce the cost of their data operations by eliminating waste and implementing a shared services model.

Similar efforts are underway at the state level. According to the National Association of State Chief Information Officers (NASCIO), 42 percent of states had completed data consolidation projects in 2016, up from just 14 percent in 2007. In addition, 47 percent of states are currently working on consolidation projects, and 11 percent are in the planning stages.

That data comes from a newly released report, “Shrinking State Data Centers: A Playbook for Enterprise Data Center Consolidation.” The report notes that consolidation enables centralization of data infrastructure, which streamlines maintenance and strengthens security. Consolidation also offers an opportunity to introduce standards, better integrate systems and applications, improve support for legacy systems and enhance business continuity.

There are, of course, challenges. Resistance to change is always a huge hurdle – one that only intensifies when technical problems emerge or consolidation doesn’t meet business needs. In some instances, costs are higher than anticipated and regulatory compliance requirements aren’t met.

To help minimize risk, the NASCIO playbook recommends 9 steps organizations should take in a consolidation initiative:

• Conduct a needs analysis. IT should meet with business stakeholders to discuss their current requirements as well as anticipated growth.

• Remain engaged with stakeholders throughout the project. Making stakeholders feel they are part of the process helps minimize resistance to change.

• Plan carefully but remain flexible. The project plan should identify all impacts and provide enough flexibility to accommodate unforeseen issues.

• Document existing assets. Thorough documentation helps identify underutilized or unneeded resources, opportunities for reuse, and any resource gaps.

• Conduct a cost analysis. By understanding current costs, the organization can better calculate the savings afforded by consolidation.

• Implement standards wherever possible. Standards such as ITMS and ITIL help increase efficiency and security and further reduce costs.

• Expect the best but prepare for the worst. Maintain constant communication with stakeholders to manage expectations.

• Get buy-in. If all stakeholders are on board for the project, it is more likely to deliver long-term benefits.

• Report successes. Show the organization how much money has been saved, and the greater efficiencies and security that are gained.

While public sector agencies are leading the charge for data center consolidation, organizations across industry sectors can benefit from rationalizing and rightsizing their operations.

There is little argument that desktop computer shopping scares many people. No one should be afraid, though, because tips and good advice make things easier. Read these tips so you can learn more about shopping for computers. Be sure to have anti-virus software. Your computer can easily become infected with malicious software if you’re not running a good program. This software can take fragile personal information. Many programs on the market will run a scan and repair on a schedule if you set it to do as such.

Be on the lookout for computers that the owners are giving away. Many people decide to purchase a laptop and will sell their desktop at a very reasonable price. It’s still prudent to verify the functionality before you make an offer, though such a computer is going to be in fine shape. Look at all add-ons you are purchasing with the computer. There are many accessories that you can purchase for your new computer. Really, only purchase the ones you most need. Also, make sure the add-ons aren’t available elsewhere for much less. Those from the manufacturer are sold at higher prices.

When creating a desktop computer at home pay attention to the types of products you use. Some motherboards will only be compatible with particular processors. Certain RAM units only work well with particular motherboards. When buying the individual computer components it is important they are compatible with each other. That is going to save you money and time when you are working on your own computer. In order to keep your desktop computer running at its maximum efficiency, and to ensure the fan is cooling the components dust the interior once a week. Usually it is pretty easy to take the case off and then just spray the dust away with compressed air. That will clean the computer and help the fan to work.

Check tech sites online for computer reviews prior to purchasing. You can easily get overwhelmed with your options when looking for a computer. If you look for quality reviews written by technical professionals, you will be able to get the one that will perform as you expect it to. Be certain you can get a warranty when you buy a new desktop computer. If there are any software issues or if anything else would fail making the computer unusable, this is especially important. If necessary, generally, you’ll be able to get repairs done, or replace the entire computer.

If you enjoy PC gaming, and want the best gaming computer to handle all your graphics, there are a few factors to consider. To begin with, make sure that the computer is equipped with a high-quality video card, a display with high resolution and a minimum memory of 4 GB. You may want to also consider a special controller or keyboard. In order to start off your desktop computer shopping process, begin by writing down all the functions you need it to accomplish. This will help you find a computer that fits your needs without going way over budget. If you just do a daily email check, you will need a different computer from someone who does hard core gaming. When you go looking for a new desktop computer, make certain the software on it is completely legal. You need the CD to prevent legal trouble and so you can receive updates later. You may find the idea of looking for a new one an overwhelming concept if you have not purchased too many computers in your lifetime. Even the most inexperienced computer buyer will have a better experience if the advice is followed. Don’t buy a bad machine – use these tips and succeed!

Understanding The New USB

06/02/2018 | Web Development | No Comments

Universal Serial Bus (USB) jacks and ports are tools that allow you to connect computer peripherals to your computers, keyboards, external hard drives, or storage keys.

The numbers following the USB symbol simply correspond to the version of the USB standard concerned, the 3.0 and 3.1 series being the most recent at the time these lines are written.

In addition to the color of their connectors (version 3.0 is usually blue), it is the speed of data transfer that is the main difference between these two standards.

Thus, the USB 2.0 standard, introduced in 2000, made it possible to guarantee a transfer speed much higher than that of the previous standard: from 1.5 MB per second to theoretical 60 MB! USB 3.0, appeared in 2008, has multiplied this transfer rate by 10, reaching the theoretical rate of 625 MB per second!

Be careful, if backward compatibility is supported in the case of USB 3.0 jacks (that is, your device with a USB 3.0 port will work on your computer with USB 2.0 sockets), the speed of transfer will remain blocked to 2.0 standards…
USB standards. As early as 1995, the USB standard was developed for connecting a wide variety of devices.

The USB 1.0 standard offers two modes of communication:
12 Mb / s in high-speed mode.
1.5 Mb / s at low speed.

The USB 1.1 standard provides some clarifications to USB device manufacturers but does not change the bit rate.

The USB 2.0 standard provides speeds up to 480 Mbit / s.

The USB 3.0 standard provides speeds up to 4.8 Gbps.

In the absence of a logo the best way to determine whether these are USB devices at low or high speed is to consult the product documentation as long as the connectors are the same.

Compatibility between USB 1.0, 1.1 and 2.0 devices is assured. However, using a USB 2.0 device on a low-speed USB port (i.e. 1.0 or 1.1) will limit the bit rate to 12 Mbps. In addition, the operating system may display a message explaining that the flow will be restricted.

USB port:

There are two types of USB connectors:
The so-called type A connectors, whose shape is rectangular and generally used for devices low in bandwidth (keyboard, mouse, webcam, etc.);
The so-called type B connectors, whose shape is square and used mainly for high-speed devices (external hard drives, etc.).

Description: USB Type A and Type B Connectors

1. Power + 5V (VBUS) 100mA maximum
2. Data (D-)
3. Data (D +)
4. Mass (GND)

USB bus operation

The USB architecture has the characteristic of providing power to the peripherals it connects, up to a maximum of 15 W per device. It uses a cable consisting of four wires (the GND ground, the VBUS power supply and two data wires called D- and D +).

Description: the USB cable

The USB standard allows the chaining of devices, using a bus or star topology. The devices can then either be connected one after the other, or branched.

The branching is done using boxes called “hubs”, with a single input and several outputs. Some are active (providing electrical power), others passive (powered by the computer).

Description: Bus topology of USB ports
Description: Star topology of USB ports

The communication between the host (the computer) and the peripherals is done according to a protocol (communication language) based on the principle of the token ring. This means that the bandwidth is shared temporally between all connected devices. The host (the computer) sends a sequence start signal every millisecond (ms), a time interval during which it will simultaneously give the “speech” to each one of them. When the host wants to communicate with a device, it sends a token (a data packet, containing the device address, encoded on 7 bits) designating a device, so it is the host who decides the “dialogue” with peripherals. If the device recognizes its address in the token, it sends a packet of data (8 to 255 bytes) in response, otherwise, it forwards the packet to other connected devices. The data thus exchanged are coded according to the NRZI coding.
Since the address is 7-bit coded, 128 devices (2 ^ 7) can be simultaneously connected to a port of this type.

I think I have covered all the information related to USB 2.0 & USB 3.0. If you have any question then do comment so that I can clear your thought. Feel free to share your experience about this USB 2.0 & USB 3.0

All About Biometric Hardware

02/02/2018 | Web Development | No Comments

Fingerprint authentication is apparently a rather clear option for now as an alternative to passwords. Multifactor authentication is the procedure of using more than 1 identifier to log-in. Biometric authentication supplies an attractive means of authenticating users into high-risk infrastructure.

Facial recognition

This type of biometric authentication employs the exceptional facial qualities of someone. When it has to do with biometric authentication, the fingerprint sensor is the most trustworthy and convenient. For starters, biometric authentication is considered among the best kinds of authentication currently offered. The worldwide biometric authentication and identification market is predicted to undergo substantial growth over the following five years.

Biometrics provides convenience, simplicity of use, simple scalability and increased cybersecurity. In addition, they are increasingly sophisticated and proven, including facial recognition as a means of authentication. Biometrics needs to be secure. however, it can’t interrupt somebody’s day-to-day pursuits. For smaller companies, in addition, it supplies a cloud-based solution which delivers fingerprint biometrics and smart cards.

There are a few specific forms of biometrics utilized for some particular purposes. They will also have some impact on the workplace with regards to the need for additional hardware costs such as scanners. Behavioral biometrics is a new type of biometric that gives you the ability to confirm your identity with how you behave, instead of some facet of your physical body.

Biometrics allows an employee to use their fingerprint as identification at any location in the retail shop. They are part of the cutting edge of technology. They are also being used in the automotive industry in the form of biometric vehicle access systems. They are already changing the game, and they will continue to do so. They also offer flexibility to the user different identifiers can be used in different situations. Behavioral biometrics utilize ephemeral data, meaning theft would just be a temporary disability.

What You Don’t Know About Biometric Hardware

As per a study by Grand View Research, the international biometric authentication market is predicted to grow significantly over the following five decades. From hardware like smartphones and laptops to software like web applications and services, the demand for biometrics has increased recently and will probably keep doing so as the way of implementing such way of authentication become even cheaper and reliable on an extensive scale. In addition, there are concerns over privacy about the biometric information stored, as it may be used for numerous different applications including health and drug screening and identifying employees outside the workplace. There are, naturally, issues with hardware security tokens. 1 potential issue with biometric factors is they’re not secrets” in the manner that passwords or tokens are.