Hard Disk - 3417 Words

Hard Disk The Physical Characteristics of All Disks The hard disk has one or more metal platters coated top and bottom with a magnetic material similar to the coating on a VCR magnetic tape. In the VCR the tape moves by a fixed recording and sensing device (the head). In a disk, the recording head is on a movable metal support called the arm. Information is recorded onto bands of the disk surface that form concentric circles. The circle closest to the outside is much bigger than the circle closest to the center. Since each metal platter has a top and bottom surface, there are at least two magnetic circles for each size and location. However, a disk may have as many as five platters, producing ten of these identical circles at the†¦show more content†¦Some disk models are optimized for this and reduce cost, power use, and heat by limiting seeks performance. This is definitely not the type of disk on which you want to install an operating system. †¢ If the disk moves the arm as fast as it can to the right location, once it gets there it may have to wait for a long latency period while the data rotates around to the arm location. Newer smarter disks can calculate that this is going to occur and respond by using less power to move the arm more slowly into position while still getting there with time to spare. Th is type of intelligent seek saves power and reduces noise without effecting performance. †¢ One company took its Enterprise 15,000 RPM disk hardware and reprogrammed it to run at 10,000 RPM. Then they looked to see what improvements they could get in exchange for the slower speed. Among other things, the amount of data on the disk jumped from 300 to 400G while power use and heat dropped. The conclusion is that while all disks work about the same way, in any given generation of hardware there are opportunities to tweak, optimize, and specialize. Be careful when you purchase a disk intending to get a general purpose system that you arent buying one of the disks optimized forShow MoreRelatedWhat Is Hard Disk Drive?1133 Words   |  5 PagesHard Drive Physical elements What is hard disk drive? A hard disk drive (often shortened as disc, hard drive, or HDD) is a nonvolatile storage device that stores digitally encoded information on fast rotating rigid (i.e. hard) platters with magnetic surfaces. to be precise, â€Å"drive† refers to the motorized mechanical side that s distinct from its medium, like a tape drive and its tape, or a diskette drive and its diskette. Early HDDs had removable media; but, a HDD nowadays is usually a sealed unitRead MoreProblems With A Hard Disk Drive Space Essay1516 Words   |  7 Pagesreasons this may occur including a hard disk drive which is running short on available disk space, bad files left from software programs that have been installed or uninstalled, corrupt data, missing Windows updates or outdated drivers, a computer that is overheating because of a problem with the fan, corrupt OS, or simply bad Hardware. The solution to a slow running computer is based on which of the above reasons can be attributed to the problem. To fr ee up hard disk drive space you can take a fewRead MoreStudent: Hard Disk Drive and Word Processor Essay616 Words   |  3 Pagespart, what bits the computer stores in RAM to represent the number 123456789? 8. Which of the following is not a feature of a file system that might be used with a hard disk drive? 9. A student writes a report using a word processor, saving the report in a file called my_report. The student stores the file on his laptop hard disk drive. Later, he posts the file on a file-sharing site for a classmate to review the report. Then, he copies an updated version of the file to a flash drive to submitRead MoreHard Drive Physical Components : Hard Disk Drive1141 Words   |  5 PagesHard Drive Physical Components What is hard disk drive? A hard disk drive (often shortened as hard disk, hard drive, or HDD) is a non-volatile storage device that stores digitally encoded data on rapidly rotating rigid (i.e. hard) platters with magnetic surfaces. Strictly speaking, â€Å"drive† refers to the motorized mechanical aspect that is distinct from its medium, such as a tape drive and its tape, or a floppy disk drive and its floppy disk. Early HDDs had removable media; however, an HDD today isRead MoreHard Disks Essay701 Words   |  3 Pages(1) The best thing about modern day hard drives is that it can store up to well over 1 terabyte of data which is approximately close to about 1e+12 byes, so on the platter the individual North/South spots are quite super small. (1) Sadly spinning hard drives are slowly being taken over by a newer way to store data known as an SSD or Flash storage and what it does is this. â€Å"Flash storage is made with chips (no moving parts) and is gradually replacing spinning hard drives like th is. Flash chips areRead MoreUse Of The Ipod As A Hard Disk Essay1423 Words   |  6 PagesHow can we use the iPod as a hard disk. Many at times our iPods are used as our storage devices on a certain level. The mode with which we use the iPod to store is to contain our music playlist, podcasts and some videos. We can also try making an iPod disk by manually configuring the device’s settings. Making an iPod disk simply means making your iPod as a hard disk device. You can also use your iPod as a hard disk to store files, back up your important data or transfer files from one computerRead MoreRoutine Housekeeping Procedures Essay1309 Words   |  6 PagesFor this assignment I will discuss and evaluate the improvements to computer systems achieved by routine housekeeping procedures and the benefits. Listed below is what I shall be discussing. - Physical cleaning - Disk Defragment - Virus Scanning - Disk Clean up - Disk Checker - Windows updates Physical Cleaning Physical cleaning means that you will clean the keyboard, mouse, computer screen and check for any errors such as stuck or missing keys on the PCs keyboard. This process involvesRead MoreThe Bob Woodruff Foundation Ideal Funded Programs888 Words   |  4 Pagesrehabilitation and recovery because we guide them into the correct pathway with our data. Purpose: Solid State Hard Disk With high volume of data that we receive, my proposal to The Woodruff Foundation is to upgrade our work computers with solid state hard disk. Our computers right now have hard disk drives; which hard disk drive have slow transfer rates. With solid state hard disk we are able to keep fast transfer rates with high memory capacity and is more reasonably priced than a solid stateRead MoreNt1210 Chapter 1 Review Essay1331 Words   |  6 Pagesrepresent the number123456789? D. The binary equivalent to123456789 8. Which of the following is not a feature of a file system that might be used with a hard disk dirve? A.An actuator arm 9. A student writes a report using a word processor, saving the repot in a file called my_report. The student stores the file on his laptop hard disk drive. Later, he pasts the file on a file-sharing site for a classmate to review the report. Then, he copies an updated version of the file to a flash driveRead MoreComputer Need Different Components to Make Them Function Properly1228 Words   |  5 Pages(memory) and the motherboard. Together they are acknowledged as a personal computer or PC. Often shortened down to Hard Drive, The Hard Disk Drive is a non-volatile storage device. That store programmed data on revolving platters. Like RAM, it is also well known for being measured in Kilobytes (KB), Megabytes (MB) Gigabytes (GB) and most recently, Terabytes (TB). The amount of space on a hard drive depends on how much it can hold. Nowadays, average computers have anything from 300 Gigabytes to 2 Terabytes