Benefits of Utilizing NAS to Backup Data

Written by rosco emay

 

There are numerous ways to backup data. Most people have an exterior laborious drive and replica their documents and photos across to it every now and then. Or you might need some backup software program working that automates the process. The issue with these solutions is that the exterior hard usually sits on the same desk where the PC is located. If there’s ever a break in and the PC is stolen, there is a good probability they will swipe the external hard drive as well. Likewise if there is a fire, it will doubtless engulf your PC and backup onerous disk.

A NAS drive, or Network Area Storage drive permits the exterior exhausting disk to be situated elsewhere within the house. Because its bodily in a different location the possibilities of it being stolen or broken concurrently your PC are significantly reduced. Especially if you get artistic and position in a spot that’s tough to spot.

As a way to hold price down, many NAS drives do not have wireless capabilities and depend on an ethernet cable which connects the NAS to your property modem/router. From there it may be accessed by all the other PC’s and cell units within the house. However in case you spend a bit extra and get one with wi-fi functionality, you’ll be able to have more flexibility as to where you position it within the house. As long as there’s a power level nearby, it could go anyplace including on prime of kitchen cupboards, hidden within the bedroom, or wherever you possibly can think of that’s securely away from sight.

One other advantage of NAS drives is inbuilt redundancy. The fashions that maintain onerous disks usually offer RAID 1, which means that every disk is a duplicate of the other. So if one disk fails, the other is still available. If you replace the faulty one, it rebuilds itself and information is ever lost. Larger NAS drives that hold four or extra arduous disks offer RAID 5. Raid 5 requies a minimal of 4 laborious disks and one is used for redundancy and whole of the remaining disks is your accessible disk space.

If a house or enterprise has more than one PC and a lot of cell units corresponding to good telephones and moveable media gamers, the NAS could instead be used as a central repository the place all these units can entry and use the identical data. As a result of the NAS makes use of less power than a PC, the whole lot else in the house can still use the info with out the PC having to be on, due to this fact saving on energy costs. For instance you might need to show mates some pictures on the TV, and with the pictures stored on the NAS there isn’t any must boot up the PC.

These NAS finest practices are just a few issues you are able to do with network storage. Some also have in-built BitTorrent clients, or they may have DLNA which permits media streaming. However the perfect thing they do is enhance the security of backups. Configured correctly and safely positioned in the home, a NAS drive supplies additional peace of thoughts that your data is securely backup up and separated out of your everyday PC.

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Tablets, tablets, tablets…but which one?

Written by Olivia Preston

 

Tablets are a cross between a smartphone and a laptop and are currently the most sought after device in the tech world right now.

So far, the Apple iPad has been the only mainstream contender for the number one tablet after selling over two million in the first two months of its release, but with the release of the Samsung Galaxy tab, and copious amounts of other anticipated tablet launches, Apple may be forced to hand over the tablet crown.

Tablets are no doubt going to be this year’s most popular gift for Christmas, but how you do the impossible task of choosing which one to buy if you’re not particularly tech savvy?

We’ve reviewed some of the current and up and coming tablets on the market so the all important decision can be that little bit easier for you.

All tablets allow users to browse the Internet with their fingertips, flick through photos, read e-books and even watch films but which tablets really stand out from the crowd?

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Which antivirus protection is the best?

Written by Jared L

 

There are a currently plenty of anti virus protection on the market for you to choose. The leaders are pretty obvious and they are MacAfee and Norton but they may not definitely be the best anti virus protection available. The needs of individuals and corporations vary and different software can meet the needs of different folks. You need to do a self-assessment before you can really decide on the best option for yourself.

The most rudimentary specifications that must be available for any Read more

What is RAM?

Written by Tom Paine

 

RAM is a moniker for Random Access Memory. It acts as a short-term memory much like the human brain to store a wealth of information. The RAM is accessible through the computer’s brain called the CPU which stands for Central Processing Unit. RAM has the capability of being retrieved only while a computer is on. When the computer is turned off the RAM is no longer accessible. ROM chips along with BIOS (computer boot firmware) allows the RAM information to be retrievable when the computer is rebooted.

RAM size and Location on the Computer System

Most computers come equipped with 256 million bytes of RAM already on the computer. Additional RAM can be placed within the system. However, there is usually a limitation placed upon just how much RAM can be added to a computer system. RAM is not random as its name would lead one to believe. The RAM is highly controlled and the storage can be directly ascertained. There is a decisive method that RAM utilizes to make its memory available to certain areas of the computer system.

Forms for RAM

RAM is what is known as discrete microchips which means that it is separate. An additional form of RAM is modules which attach into outlets in the motherboard of the computer. A network of electrical pathways to the processor allows the connection to spark for the RAM.

Why is RAM Important

RAM serves the very important function of retrieving information that must be accessed in a quick manner. This operation is very similar to the human brain’s function in retrieving necessary facts from short term memory. Open files and the utilization of applications on a computer systems requires the assistance of RAM. Users that play alot of video games with detailed graphics or keep alot of folders open while on their computer, will need the use of additional RAM. This will allow them to better access the information they need when the time comes. RAM is held onto a limited time, but it allows the information to come up quickly and without much fuss on the part of the computer user.

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ROM, RAM and HDD design

Written by Dean Barnard

Copyright (c) 2007 Dean Barnard

 

ROM, Read only Memory

The data or information stored in these types of memories is not changeable. It therefore does not require electrical power to retain information. The ROM chip or IC contains rows and columns of diodes. The presence or absence of diode in a particular row defines weather it is a binary one or zero. The content of a ROM is permanent and care has to be taken while designing it. It is not possible to rewrite a ROM. If change is necessitated, the whole chip has to be discarded. But once properly designed, they are robust, consume less power and cheap to manufacture.

The different types of ROM are:

1.PROM, Programmable Read only Memory
The design of ROM is made easier by the PROM. PROM contains a fuse at the junction of each row and column of the grid. In the initial stage the complete grid represents a binary one. When an electric charge is passed through it, it ruptures the fuse and becomes a zero.

2.EPROM Erasable Programmable Read only Memory
This is an improvement on PROM. Ultraviolet light is used to erase the information. This is a tedious process and excess exposure may lead to destruction of the ROM.

3.EEPROM, Electrical Erasable Programmable Read only Memory
This kind of ROM is popular in memory sticks. The required portion of the memory can be erased or written on in a selective basis.

RAM, Random Access Memory

This type of memory is essential for the working of a computer. It is a integrated chip consisting of rows and columns of a pair of transistor and a capacitor forming a grid. If the capacitor is charged at 50 % or more, it reflects a binary one. Due to the nature of a capacitor (it discharges at a very fast rate), it is required to charge them periodically. This is called a refresh cycle. In addition to the charging circuitry, it consists of a control circuit which is used to read and write data. Since the data can be accessed and written dynamically, these are called dynamic random access memory. The combined working of all the devices makes it slow in working.

Another type of RAM is the static RAM, where the integrated chip consists of a series of Flip-flops instead of a combination of a transistor and a capacitor. In the absence of a capacitor, there is no need to cater for the refresh cycle and this makes the static RAM considerably faster than a dynamic RAM. A Flip-flop consists of a few transistors and therefore the cost of a static RAM is higher, though it is compact.

Hard Disk Drive (HDD)

A hard disk drive is used to store vast amount of data. The data access time and speed are not critical for this device. The speed of a HDD is specified by the RPM or the rotations per minute of the rotating disc. For an IDE based HDD, the RPM is 5400 or 7200. Faster hard discs with better access time are called SCSI drives which can attain much faster speeds. Since, the HDD works on the principle of rotating disc, its efficiency is restricted by the speed of rotation of mechanical components. Transporting a HDD while in operation may cause a crash and damage the disc.

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