...NT1110 July 31, 2013 Unit 6 Research Paper 1: Network Attached Storage A network-attached storage (NAS) device is a self-contained computer that is connected to a network. A NAS contains its own operating system that handles the function of data storage, file system, and the access to the files but doesn’t include a monitor, keyboard or other devices. NAS is dedicated for file sharing and allows more hard disk storage space and doesn’t need upgrades. The available speed of a NAS device varies but the usual speeds are 1 GB Ethernet connection however it can be changed to a multiple of GB and fiber optic by adding a PCIe network card(s). The capacity range also varies because there is no real limit to the NAS for example a board with six SATA ports can be replicated to allow thirty drives to be attached and up to 72TB of storage. There is fault tolerance (RAID) built into a NAS device if set up correctly RAID 50 is fairly stable, RAID 10 has been advertised as one of the best set ups because more drives can fail at one time without having data loss. A NAS device over all has its advantages it is great for file sharing and keeping all your files safe. So in a house where children and parents all have their own computer with pictures and videos it benefits them to have a NAS device where they can just store all those files and not worry about if one computer goes down all the files go along with the computer. http://technicallyeasy.net/2008/06/what-is-nas-device/...
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...Unit 6 Research Paper 1: Network Attached Storage (NAS) What is a NAS device? What is the speed of the network adapter available on a NAS device? What is the capacity range? Is there any fault tolerance (such as RAID) build into a NAS device? Are management features available? These are the questions I have to answer for this paper. So, here are my results starting with the first question. What is a NAS device? Network Attached Storage is a storage device connected to a network that allows storage and retrieval of data from a centralized location for authorized network users and heterogeneous clients. Seems to me that a NAS is like a WIFI version of an external hard drive. Though, if needing more room, you can add another to the one you already have. What is the speed of the network adapter available on a NAS device? NAS device doesn’t require much processing power. The largest bottleneck in performance will most likely be the network itself. Most home networks will use wired fast Ethernet (100 Megabits/sec), wired gigabit Ethernet (1000 Megabits/sec), wireless g (54 Megabits/sec), or wireless n (248 Megabits/second). What is the capacity range? Depending on the type and volume of content you plan to store, there's a choice of capacities available all the way up to huge multiple TB (Terabyte) versions. A 160GB capacity for example would be enough storage for around 40,000 average audio tracks or up to 200 hours of video content. If you'll be using your NAS device to store...
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...In: Computers and Technology Unit 6 Research Paper 1: Network Attached Storage UNIT 6 RESEARCH PAPER 1: NETWORK ATTACHED STORAGE NT 1110 WAYNE HOVIS PART 1 What is a NAS device? A network-attached storage (NAS) device is a server that is dedicated to nothing more than file sharing. NAS does not provide any of the activities that a server in a server-centric system typically provides, such as email, authentication or file management. NAS allows more hard disk storage space to be added to a network that already utilizes servers without shutting them down for maintenance and upgrades. With a NAS device, storage is not an integral part of the server. Instead, in this storage-centric design, the server still handles all of the processing of data but a NAS device delivers the data to the user. A NAS device does not need to be located within the server but can exist anywhere in a LAN and can be made up of multiple networked NAS devices. What is the speed of the network adapter available on a NAS device? The speed is usually 1GB Ethernet connection but it can be changed to multiple Gb, 10Gb, fiber optic by adding a PCIe network card(s). It depends on the NAS device. Most newer ones will have Gigabit ethernet, very cheap or old ones may only be 100Mbit and high end ones may have 2 separate gigabit ethernet connections. What is the capacity range? Depending on the type and volume of content you plan to store, there's a choice of capacities...
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...Network Attached Storage ITMO 557 Research Paper Submitted by: Ashif Anwar CWID: A20318587 Date of Submission: This is a research paper on Network attached storage covering the various areas given in the contents below. Fall 2014 ASHIF ANWAR Illinois Institute of Technology-Chicago 11/30/2014 Contents: 1. Introduction. 2. History. 3. Product demonstration. 4. NAS future perspective. 5. Introduction Network Attached Storage is basically defined as a file level computer data storage server connected to a computer network. It is specialized for file server operation by its hardware, software or configuration of elements to provide data access to wide range of clients (Wikipedia, 2014). In simple words we can say “a network attached storage is a external hard drive which is a computer storage system that access and remains on a computer network via Ethernet and wireless connections. The drive is then accessible to all computers in a network, instead of one just hard wired computer”(Networking, 2014). Figure-1: NAS Storage on a network infrastructure. (slideshare, 2013). NAS is one of the popular approaches which allow homes and business to store and retrieve large amounts of data in an efficient and affordable manner. One can wirelessly backup their computer files such as music, videos and other important documents...
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...Unit 6 Research Paper 1 Network Attached Storage ITT Tech Network attached storage (NAS) is basically a server that acts as hard drive that’s attached to a network. This connection to a network allows anyone who is also connected to the network the ability to access the hard drive. The NAS come in many sizes and different capabilities. The network connection that the NAS uses can be almost any that are available. The standard Ethernet connection is the most common connection by there are also systems that use a wireless connection or even a fiber optic connection for extremely fast transfer speeds. The storage of NAS systems can vary greatly. There are consumer models with a fixed amount of storage, and then the professional versions that have the capacity of many terabytes that can be upgraded when new drives become available. With the numerous amount of drives the chance of corrupted data and errors is always a possibility. With this possibility manufacturers have included the ability to arrange the drive into a RAID. The different RAID configurations allow users the protection from errors and data loss at the expense of storage space. NAS, unlike normal servers, do not require a keyboard, mouse, or monitor. They are usually managed from a remote terminal accessed via the NAS network connection. Some NAS systems use a web browser interface that uses the user’s web browser to interact with the NAS. Other systems use software that the manufacturer develops...
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...UNIT 6 RESEARCH PAPER 1 What is a NAS devise ? A network-attached storage (NAS) device is a server that is dedicated to nothing more than file sharing. NAS does not provide any of the activities that a server in a server-centric system typically provides, such as e-mail, authentication or file management. NAS allows more hard disk storage space to be added to a network that already utilizes servers without shutting them down for maintenance and upgrades. With a NAS device, storage is not an integral part of the server. Instead, in this storage-centric design, the server still handles all of the processing of data but a NAS device delivers the data to the user. A NAS device does not need to be located within the server but can exist anywhere in a LAN and can be made up of multiple networked NAS devices. What is the speed of the network adapter available on Nas device ? There are many varieties of NAS devices, depending on if you build it yourself or purchase it. The speed is usually 1GB Ethernet connection but it can be changed to multiple Gb, 10Gb, fiber optic by adding a PCIe network cards. What is the capacity range? The capacity range also varies. With a port replication and add on hardware drive controller cards there really isn’t a limit on size. Is there any fault tolerance (such as RAID) built into a NAS device? The capacity range again varies, people have built 40 TB (terabyte) machines and other just have 2TB. With port replication and add...
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...Jonathan Bowden October 27, 2014 NT1114 Unit 6 Research Paper Network Attached Storage A Network Attached Storage device is like having an at-home cloud. It allows all the computers in a household to access the same massive storage device. Since NAS devices start at 2 TB of data, they can hold everything your family is going to need. If a single computer gets damaged and you are using a NAS device, you don’t have to worry about all of your data being lost. The computer is broken, but all of your home videos and pictures are safe and sound on your NAS device. There really are no limits to Network Attached Storage. With 1 GB Ethernet you can transmit just about everything you want as fast as you’re going to need it. You could also use a 10GB fiber optic cable too if you really wanted to. I guess the only real limit would be on a wireless network where you would be limited to the speed of your wi-fi connection. The capacity range of a NAS device is really only limited to the size of hard drives. A board with six SATA ports can be replicated to allow for 30 drives to be attached, if 3 TB drives are used in RAID 50 that would be 72 TB of storage, or approximately 72,000 full length movies. So you are going to be able to put as much memory on the NAS device as you’re going to need. It will only be a matter of cost that will limit you. And since RAID is very stable, there’s nothing really to be afraid of using this kind of storage. As for whether or not a family should...
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...Matt Bristow NT-1110 Unit 6 Research Paper NAS Devices NAS is an acronym for Network-Attached Storage. It is basically a file-level computer built for data storage connected to a computer network providing data access to any computer connected to that network. The speed for any particular NAS device varies from 1 gigabit all the way up to 10 gigabits depending on what upgrades a pc has such as an upgraded network cards. The capacity range for NAS devices also depend solely on the budget set forth. It can be a low range system with 500 gigabytes, all the way up to a wallet-busting 16 terabytes. The fault tolerances when set at RAID 10 are the most stable since more devices can fail while protecting against any potential data loss. The advantages of an NAS device are that since it is a dedicated file storage device, accessing said data is a lot faster than typical in-pc hard drives. Another advantage would be the amount of storage you're capable of having. It far outpaces pc's in storage capabilities because all it is built for is storage. For a family with a lot of pictures or videos, the advantages are that any computer connected to the NAS device can access them. It's a library for any media/documents/or anything else you can think of that can be accessed at any time by any pc connected to it. They might be pricey for a casual pc user but when dealing with multiple pc's connected to a single network, an NAS device would be the perfect option when space becomes an...
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...Cameron White Unit 6 Research Paper 1 What is a NAS device? A NAS (Network-Attached Storage) is a server that is dedicated to nothing more than file sharing. It’s usually a network providing data access to a heterogeneous group of clients. NAS usually has a speed of 1GB Ethernet connection but it can be changed to Gb, 10Gb, fiber optic by adding a PCIe network card. They usually have a capacity range from 0-Unlimitied. The capacity varies because you can always add on hardware drive controller cards. You can have a board that has six SATA ports that can allow 30 drives to be attached and 3TB drives are used in RAID 50, then there would be 72TB of storage. When using RAID there aren’t really any fault tolerance. Older models of RAID have been known to lose all storage if one or more drives fail. When using a NAS device there are management features available like using SSL to protect the web management interface to bare minimum, also support of protocols such as SSH for encryption of RSYNC data transfers. SMB’s with more than two dozen users will appreciate a proper management console from which users and permissions can be managed. SMB’s that have deployed Active Directory will be looking for a NAS that supports it as well. Some models can switch off when not in use to save power and you can always play with the settings. NAS can be really helpful and can defiantly be helpful with a family that all has there own computer. With NAS you can have photos and videos and share them/access...
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...* Skip to Navigation * Skip to Content TermPaperWarehouse.com - Free Term Papers, Essays and Research Documents The Research Paper Factory * Join * Search * Browse * Saved Papers ------------------------------------------------- Top of Form Search Bottom of Form * Home Page » * Computers and Technology Unit 4 Research Paper In: Computers and Technology Unit 4 Research Paper A port expander is a device that allows one port on a computer system to connect to multiple devices. There are two forms of port expanders: internal and external. An internal expander has a connection inside the computer, typically on the motherboard and the only part the user sees is the expansion plate that contains multiple ports. As for an external device, it plugs into the existing port and then has multiple places to connect. The most common versions are used for USB and Ethernet ports. There are numerous types of ports that have available port expanders for them. Here is a list that I have compiled: * Ethernet port expander * Firewire port expander * DB-25 port expander * Serial port expander * USB port expander * VGA port expander * DVI port expander * SCSI port expander * Audio port expander * Video port expander * Microphone port expander * RS-422 port expander * Modbus serial port expander * SATA port expander * SAS port expander * SSD port expander Port expanders are generic devices that can be used with any computer as long as the computer...
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...Do The Deep Information Computer Technology Author Musisi Boney 2013 EDITION Authored by Musisi Boney; +256788489095 2 Table of contents Topics Page Introduction To Computer …………………………………………………….. 5 History & Evolution Of Computers ………………………………………….... 7 Computer Generation …………………………………………………………. 11 Computers Today ……………………………………………………………... 15 Computer Classification ………………………………………………………. 19 Computer System ……………………………………………………………... 25 Computer Hardware ………………………………………………………….. 27 - Input devices/hardware .………………………………………………..27 - Output devices/ hardware..…………………………………….…….....39 - Storage hardware /devices ……………………………………………..49 - Processing devices/hardware …………………………………………..63 - Communication devices/hardware…………………………………….. Computer Software …………………………………………….……………...69 - Utility program …………………………………………………………70 - Operating system ……………………………………………….………72 - Programming languages ………………………………………………78 - Terminologies Used in Software ………………..……………….…....80 Powering A Computer ……………………………………………….………..83 Uninterrupted Power Supply……………………………………………….....85 Computer Configuration…………...…………………………….……………87 Computer Viruses ……………………………………………….……………89 Communication ………………………………………………………………95 Internet ………………………………………………………………………113 Web Design …………………………………………………………………121 Computer Ethics …………………………………………………….………125 Computer Crimes …………………………………………………….……..129 Authored by Musisi Boney; +256788489095 3 Authored by Musisi Boney; +256788489095 4 A COMPUTER ...
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...CHAPTER 1 INTRODUCTION TO INFORMATION TECHNOLOGY 1.1 Introduction Modern civilization has become so complicated and sophisticated that to survive one has to be competitive. This compels people to keep themselves informed of all types of happening in the society. And this in turn entails the need for an infrastructure of information. This is the point where information technology or IT becomes most important, as it is the infrastructure that allows us to get information accurately and in time. Before we define information technology, it is important to understand the notion of Data, Information, Technology, and Knowledge. In everyday conversation, people use the terms data and information interchangeably. However, some computer professional make a distinction between the two terms. Data It is the words, numbers, letters, symbol, sound, video and graphics that describe people, events, things and ideas. It is raw facts about people, objects, and events that have little or no meaning. It is the raw material used to create useful information. It becomes information when you use it as the basis for initiating some action or for making a decision. Information It is defined as the words, numbers, letters, symbol, sound, video and graphics used as the basis for human action or decisions. It is data that have been processed and presented in a form suitable for human interpretation, often with the purpose of revealing trends or patterns that can be used in decision-making. It is data...
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...Computer Engineering (IJECE) Vol. 3, No. 6, December 2013, pp. 784~790 ISSN: 2088-8708 784 Journal homepage: http://iaesjournal.com/online/index.php/IJECE RFID Based Attendance Management System Shashank Shukla, Shailee Shah, Pooja Save Department of Information Technology, Thakur College of Engineering & Technology (TCET) Kandivali-400101, Mumbai University, India Article Info ABSTRACT Article history: Received Jul 19, 2013 Revised Oct 8, 2013 Accepted Oct 30, 2013 Radio-frequency identification (RFID) is a technology that uses radio waves to transfer data from an electronic tag, called RFID tag or label, attached to an object, through a reader for the purpose of identifying and tracking the object. RFID technology is a matured technology that has been widely deployed by various organizations as a part of their automation systems. In this project, an RFID based system has been built in order to produce an attendance management system. An automated attendance management software will not only make the entire process simple, but will also provide a well-structured and analyzed report of the pattern of student attendance and time management, which can further help in allocating and using the human resources in an organization to the maximum possible benefit. This system consists of two main parts which include: the hardware and the software. The hardware consists of a motor unit and RFID reader. The RFID reader, which...
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...categories of information technology: hardware and software. Hardware consists of the physical devices associated with a computer system. Software is the set of instructions that the hardware executes to carry out specific tasks. Software, such as Microsoft Excel, and various hardware devices, such as a keyboard and a monitor, interact to create a spreadsheet or a graph. This appendix covers the basics of computer hardware and software including terminology, characteristics, and the associated managerial responsibilities for building a solid enterprise architecture. B.1 bal76736_app-B_B1-B16.indd B.1 7/26/08 11:31:21 AM Confirming Pages LEARNING OUTCOMES B.1. Describe the six major categories of hardware and provide an example of each. B.2. Identify the different computer categories and explain their potential business uses. B.3. Explain the difference between primary and secondary storage. B.4....
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...GO Com Concepts_Ch01.qxd 3/6/07 4:46 PM Page 1 1 Computer Concepts chapterone Basic Computer © 2010 Pearson Education, Inc., Concepts Upper Saddle River, NJ. All rights reserved. This material is protected under all copyright laws as they currently exist. No portion of this material may be reproduced, in any form or by any means, without permission in writing from the publisher. OBJECTIVES At the end of this chapter you will be able to: 1. Define Computer and Identify the Four Basic Computing Functions 2. Identify the Different Types of Computers 3. Describe Hardware Devices and Their Uses 4. Identify Types of Software and Their Uses 5. Describe Networks and Define Network Terms 6. Identify Safe Computing Practices Computer Concepts 1 GO Com Concepts_Ch01.qxd 3/6/07 4:46 PM Page 2 Introduction Computers are an integral part of our lives. They are found in homes, offices, stores, hospitals, libraries, and many other places. Computers are part of cars and phones, and they enable you to access bank accounts from home, shop online, and quickly communicate with people around the world by means of e-mail and the Internet. It is difficult to find a business or occupation that doesn’t rely on computers. Whether it’s a truck driver who keeps an electronic travel log or a high-powered stockbroker who needs up-to-the-second market information, computers make these tasks easier, more efficient, and more accurate. © 2010...
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