...When comparing the SCSI Hard Drives, in my opinion the best of the group is the Seagate Constellation. Its price is one of the best, the seek time is so much better than the rest, it runs a faster interface type then the rest, and it has the best noise rating of the group. The worst one on the page is the HP/Compaq. Even though it is the best price, the maximum temperature rating is only 95°F and in a poorly ventilated room, temperatures inside a tower could exceed 95°F. The other three in the list all have about the same specification but there biggest downfall is price. The closest to the Seagate is the Dell and it is still over a hundred dollars more expensive. Other specifications were all close to each other with the exception of the interface type. The Seagate is the only one running at a faster rate. When comparing the SATA Hard Drives, in my opinion the best of the group is once again the Seagate Barracuda. Once again its price is one of the best in the group, has the best seek time, runs on a faster interface and is rated one of the best is noise specification. The worst one in this group is the Toshiba. First of all its price is the most expensive of the group, and then its spindle speed is far worse than all the others at 5400 rpms, which makes it the slowest in seek time as well at 12 ms in comparison to the rest which run at around 8 to 9 ms. The rest of the hard drives in the group all average about the same with the Western Digital running at the same...
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...Capacity. In order to do that, you need to buy a new hard disk which is a SATA type and sized 2.5”. As far as storage capacity goes, you don’t have to go through the process unless you want a large capacity like 120 GB and above. A philips screwdriver will do fine for you purpose. To upgrade your PS3 capacity, you need to do the following steps. First, you need to backup your current data if you don’t want to lose it. Insert an external drive; it could be a flash or a hard disk, which is FAT32 type. Next, from the system menu on you PS3, choose the backup utility. Now, the data of your PS3 is copied to your external drive. The next step is extracting the hard disk of the console. First, open HDD plastic cover which is located on the left side of your console. Next, remove the blue screw using the philips screwdriver. After that, open the metal latch. Then, slide out the hard disk drive. After that, remove the four screws that hold the hard drive to the tray; you’ll need a little power in order to do that. Now, it’s time to change the hard disk. Swap the hard disk drives and install the screws into the new hard disk. After that, put the drive tray back into the console and slide it inside into place. Then, replace the blue screw and tight it. After that, place the HDD plastic cover back. Then, switch on the console. Now, the new hard disk is automatically formatted by the PS3 system. After that, insert the external drive which has your PS3 backup data and from the system menu...
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...Contents 1. Introduction 2. History of Hard Disk Drive (HDD) Industry 3 Definition of HDD 4. Structure of the Industry 5. Competitiveness 6. Challenges 7. Conclusion 1. Introduction In this era, people own various types of electronics which contain hard disk drives. Among these HDD (Hard Disk Drive) industries, Seagate is one of the worldwide leaders in manufacturing and marketing of hard disk drives. Seagate’s corporate office is located in Scotts Valley, California and employs nearly 52,000 people around the world. As one of employees in Seagate Company, I will explain in detail the nature of the HDD industry and its products. 2. History of HDD Industry Behind the HDD (Hard Disk Drive) industry is an interesting and challenging history. In 24 years it progressed from a monstrosity with fifty two-foot diameter disks holding five Mbytes of data to today's drives measuring 3.5 inches wide and holding 2 Tera-Bytes. The HDD market has expanded into consumer applications such as camcorders, cell phones, audio players, video players, video recorders, personal assistants and video game consoles. Before the disk drive was created, there were magnetic drums. In the 1950s, Engineering Research Associates of Minneapolis built the first commercial magnetic drum storage unit for the U.S. Navy, called ERA 110, which could store up to a million bits of data. In 1956, IBM invented the first computer disk storage, the 305 RAMAC (Random Access Method of Accounting and...
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...Hard Drives Robert Rzeszuto Most people don’t realize just how complex, interesting, and important the hard drive really is. The hard drive has gone through many important changes throughout its history to become the hard drive we use today. The hard drive records its data in a very complex way, but its still one of the most reliable pieces of technology to store our precious data. The hard drive comes in different interfaces and forms that became more user-‐friendly as the hard drive progressed. The hard drive is the main device for storing data on a personal computer. IBM first introduced the hard drive in 1956, but they were not used in personal computers until the 1980s. Still in the early 1980s the hard drive was rare and expensive. Not until the late 1980s did it become ...
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...The Price of RAM And Hard Drive Storage Over The Past 30 Years The price and capacities of RAM and hard drive storage have come a long way in the past 30 years. Take for instance, in 1981 an 18MB hard drive cost $2500, today a 1TB hard drive costs $150. In 1990 RAM costs were $50 per MB and today one can purchase 2GB RAM for approximately $50. Observe the following table pertaining to hard drive cost vs GB capacity from 1980-2009: Table Source: iStockAnalyst Observe that there is a strong exponential correlation in the capacity vs cost ratio, where r=0.9916. During the last 30 years the capacity per unit cost ratio has nearly doubled approximately every 14 months. The regression equation is given by: Many TB+ drives have become available which recently broken the $0.10/GB boundary, whilst the next milestone being $0.01/GB or $10/TB. If historical trends continue, then 10 years from now the cost per GB of hard drive capacity will become $0.0000351 per GB or $0.0351 per TB. For $100, one could purchase a 2,849TB drive 10 years from now, based on the analysis of historical trends. Although 120 PB drives are currently available in the server and super computing market, consumer grade hard drives aren’t available in these sizes, as the physical size and cost per PB is too great for the marketability in the consumer market. Based on historical trends, one could forecast the availability of a consumer level 100TB hard drive in the next five years. It must be noted all figures...
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...one computer is over worked so the system have computers that’s have less duties to perform the tasks. Computation speedup help the system from crashing and tasks are preformed quicker. Distributed systems are more reliable because if one computer crash or fail the others can share its responsibilities and system will continue running smoothly. By computers being link together the users can communicate between each other. Two Types of failure When dealing with computers there are two types of failures. You can have a hard drive failure or a software failure. A hard drive failure is when the disk drive fails to function and the information cannot be retrieved. The common cause of a hard drive failure is heat, damage to the computer, power surge, water damage, corrupted files, and human error. Software failure is more common than hard drive failures. Software failure sometime harder to fix than a hard drive failure. A hard drive failure you can replace the hard drive or find the human error and...
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...FIREWIRE. It also discussed how recognizing and identifying cables and connectors, pin configurations, and speeds associated with each technology. 3- Topics presented are: * New hard drive installation * Hard drives 137 GB limit * 300 GB hard drive Scenario * Hard Drive interfaces PATA,SATA,SCSI,USB and FireWire. * PATA or parallel ATA * ATA 100 and ATA 133 * SATA or serial ATA * Floppy drives : 3 1/2” disk and 5 ¼”disk * Floppy Drives Formatting * Power Supply connections * Connections types: Molex and berg * Floppy Drive cables and connectors * CDs * Pits and Lands * Laser Reading * Types of CDs: CD-ROM, CD-R and CD-RW * DVDs -Multiple layers increase capacity * HD-DVD * Blu-Ray * CDs and DVDs * Power supply * Best Arrangement * Care and Handling * SCSI Devices * Three SCSI standards: SCSI -1 ,SCSI-2, SCSI-3 Achille Fred * SCSI Connector * Narrow SCSI * Wide SCSI * Internal or External SCSI * SCSI ID * IEEE 1394 or Fire Wire * Fire Wire and ilink * Isochronous Data Transmission * IEEE 1394A and IEEE 1394B * Solid State Removable * Compact flash * Flash Drives * Vault Drives * Tape Drives 4-terms used. * Hard Drives are made up of a stack of platters with read- write heads that read both the top and the bottom of each platter. * Platters are coated with magnetic film which contains the data...
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...| Creating a Virtual Hard DiskEditing a Virtual Hard Disk FileCreating a Virtual Machine with an Existing Virtual Hard DiskConfiguring QOS on a Virtual Hard DiskCreating a Pass-Through DiskCreating a Checkpoint | BEFORE YOU BEGIN The lab environment consists of three servers connected to a local area network, one of which is configured to function as the domain controller for a domain called adatum.com. The computers required for this lab are listed in Table 8-1. Table 8-1 Computers Required for Lab 8 Computer | Operating System | Computer Name | Domain controller 1 | Windows Server 2012 R2 | SERVERA | Member server 2 | Windows Server 2012 R2 | SERVERB | Member server 3 | Windows Server 2012 R2 | SERVERC | In addition to the computers, you also require the software listed in Table 8-2 to complete Lab 8. Table 8-2 Software Required for Lab 8 Software | Location | Lab 8 student worksheet | Lab08_worksheet.docx (provided by instructor) | Working with Lab Worksheets Each lab in this manual requires that you answer questions, take screen shots, and perform other activities that you will document in a worksheet named for the lab, such as Lab08_worksheet.docx. It is recommended that you use a USB flash drive to store your worksheets, so you can submit them to your instructor for review. As you perform the exercises in each lab, open the appropriate worksheet file, fill in the required information, and save the file to your flash drive. After completing this...
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...Also equipment needed are we going to need more than one monitor to create and edit graphics is the fact that we want to spend less on computer technology or is it we want to spend high as possible to get the best tools to create and edit graphics. Are hard drives essential? If it is how many hard drives do we need to save our precious work? What is hardware? Well hardware is somewhere you can save your work. Sometimes it’s better to have two hard drives. However a hard drive which has stopped rotates at standard hard drives rotate at 5400 RPM. However at standard 7200 is something that allows you save your work and also retrieve your work. Now the faster the hard drives rotates the faster the files will get to the hard drive and also you will be able to make more changes. a hardware is something which is described as a device that is just physically connected to your computer. In hardware it would contain a circuit board and some other electronics. A fantastic example of hardware would be a monitor which is an output device which would allow a user to interface visually with the computer. Also without any hard drive in your computer, your computer wouldn’t exist. Why do we need a hard drive? Well a reason of why we need a hard...
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...Austin Powell PT2520 Week 5 Essay 07/16/14 Security Plan Authentication- Will designate using SQL Server, which includes a two-step log-in process that drastically improves security. The initial log-in will grant the user access to the server, there will be an additional log-in required to access the database. Due to the nature of each user having different permissions granted, SQL Server is a better choice over Windows and will require each user to enter a username and password. Authorization-SQL Server will only grant permissions to which the user is specifically given. Each permission granted is distinct and specifically granted. Roles will be established based on the permissions that are to be granted. There will be a tenant, owner, and property manager role. Once established, then the permissions will be setup and access to the various areas of the database will be given. Roles Tenants- Access will be given to such information as their lease, rental agreement, payment history, as well as any maintenance requests requested. Tenants will be allowed to change or delete information such as payment information. Owners-Access will only be given to information that pertains to the owner. Owner will have permission to only view information about leases, rental agreements, tenants and maintenance requests. Property Managers-Access to all information will be given to users of this role. Property Managers will be able to not only view but insert and...
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...layer) drive 15.6" FHD TruBrite® LED Backlit Display (1920 x 1080) No Touchscreen Premium Frameless LED Backlit Raised Tile Keyboard with 10-Keypad (black) Wi-Fi® Wireless networking (802.11b/g/n)+ Bluetooth 4.0 (150Mbps)\ Price= $699 Dell Alienware 18 (Dell, 2014) Alienware 18 | Alienware 18 | Operating System | Windows® 7 Ultimate 64-bit, English | Memory | 8GB Dual Channel DDR3L at 1600MHz | Keyboard | English Keyboard | Video Card | Dual NVIDIA® GeForce® GTX 780M with 4GB GDDR5 - NVIDIA SLI® Enabled | Driver | 5G WiFi Broadcom 4352 802.11n/ac and Bluetooth 4.0 driver | Hard Drive | 750GB 7200RPM SATA 6Gb/s | UPC Label | MOD,LBL,FGA001,UPC390,AW18R1 | CD ROM/DVD ROM | Slot-Loading 8x SuperMulti Drive (DVDR/RW) (Standard) | Wireless | Broadcom 4352 802.11 ac 2x2 and Bluetooth 4.0 | Cable | US 125V Power Cord | Documentation/Disks | Documentation, English | Support | 1 Year Alienware Basic Support | Systems Management | Alienware Command Center 3.0 | Resource DVD | Resource DVD | Placemat | Setup Instructions English | Retail Software | Dell.com Order | Primary Battery | 8-cell Lithium Ion (86 wHr) | Processor | Intel® Core™ i7-4700MQ processor (6MB Cache, up to 3.4GHz w/ Intel® Turbo Boost) | Price= $3100 Toshiba All-in-One PX35T-AST2G01 Desktop $1300 (Toshiba, 2014) * Intel® Core™ i7-4700MQ quad core processor * Windows 8 * 8GB DDR3L memory * 2TB (5400RPM) hard disk drive *...
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...the power needed to run all the computer’s components and also provides all the power cables I will need to supply the expansion components that will be installed later in this build. Different devices in the computer and on the motherboard all need different levels of power so to speak so the power supply also reduces and converts the raw electricity into the exact amounts needed by each component by using capacitors and resistors etc. built within the power supply itself. The Case is also very important in this build as I will need a case that can support the motherboard form factor and power supply design I have chosen. The case must also have the needed expansion slots built in and the correct amount of expansion bays for my optical drives. For the power supply I have chosen the OCZ ModXStream Pro 700W Modular High Performance Power Supply, this power supply has everything I need to power all the devices and expansions I will be adding to the computer its specifications are as follow: “Model number OCZ700MXSP, Type ATX12V V2.2 / EPS12V, Maximum Power 700W, 1 x 135mm Fan, Main Connector 20+4Pin, PCI-Express Connector 1 x 6-Pin, 1 x 6+2-Pin, SATA Power Connector x6, SLI Certified, CrossFire Ready, Input Voltage 100 - 240 V, Input Frequency Range 50/60 Hz, Dimensions 5.9" x 3.4" x 6.3" Features, 1 x Main connector (20+4Pin), 1 x 12V(P4) 1 x 12V(8Pin )4 x Peripheral 6 x SATA2 x Floppy 2 x PCI-E(Cooler2011).” I have chosen this specific power supply for a few reasons one of...
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...chipsets from Intel * COMPARISON OF MEMORY MODULES- * All systems built in the early 90’s have used some form of memory module * SIMM- single refers to both sides having same pin out * SIPP- substituted pins for the edge connectors used by SIMM modules * DIMM- each side has different pin out * SODIMM- various pin outs for notebook, laser and LED printers * RDRAM- uses direct Rambus memory chips and is also referred as RIMM * SORM- compact version of the standard Rambus module for used in notebooks * Installing DIMMS and Rambus RDRAM Modules * Memory modules are the memory sticks that are installed into the slots of a motherboard * They have different locking mechanisms for the modules * HARD DISK DRIVES- * Are most important storage devices used by a personal computer * They store different O/S’s and other applications, system configuration files, and data files * Use one or more double sided platters * Platters covered with durable magnetic...
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...problem at hand, an exercise known as trouble shooting had to be done. This is where a step by step routine check of the machine is done in order to find a solution, ensuring that every part of the PC has been checked and functions have been confirmed to be in order. This would in turn enable them to eliminate some of the obvious road blocks which could interfere with the efforts to find a solution to the slow PCs’. Some of the reasons as to why the computer is gradually becoming slow may be due to hardware issues such as a slow processor, not enough RAM and the hard drive is either too slow or is crashing. Software issue that may make the computers slow includes having way too many items in the start up menu, unnecessary services starting automatically, viruses/Trojans/worms, security software that uses too much CPU and memory, graphic intensive desktop environment, invalid registry entries, highly fragmented hard drive, hardware problems and outdated drivers and software. Kasi computers processor (the Central Processing Unit) is what actually performs all the work. It can calculate billions of operations per second. The...
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...You can ensure its hard drive doesn’t become a treasure chest for identity thieves. Use a program that overwrites or wipes the hard drive many times. Or remove the hard drive, and physically destroy it. Understand Your Hard Drive How to Clean A Hard Drive How to Dispose of Your Computer Understand Your Hard Drive Computers often hold personal and financial information, including: passwords account numbers license keys or registration numbers for software programs addresses and phone numbers medical and prescription information tax returns files created automatically by browsers and operating systems When you save a file, especially a large one, it is scattered around the hard drive in bits and pieces. When you open a file, the hard drive gathers the bits and pieces and reconstructs them. When you delete a file, the links to reconstruct the file disappear. But the bits and pieces of the deleted file stay on your computer until they’re overwritten, and they can be retrieved with a data recovery program. To remove data from a hard drive permanently, the hard drive needs to be wiped clean. How to Clean a Hard Drive Before you clean a hard drive, save the files you want to keep to: a USB drive a CDRom an external hard drive a new computer Check your owner’s manual, the manufacturer’s website, or its customer support service for information on how to save data and transfer it to a new computer. Utility programs to wipe a hard drive are available both...
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