hard disk platter reader

, tracks, magnetic columns, and partitions.3) block definition: A block is the smallest unit of addressing (access) on a platter, and a block can store data of a certain byte.4) Definition of track: The track is a circle of a series of connected pieces of the tail.5) Magnetic column definition: The magnetic column is composed of a stack of tracks, by the same radius on each disc surface of the track.6) Definition of partition: The partition is compose

on the hard drive into the 0x900 of the memory address main boot program;------------------------------------------------------------%include "Boot.inc" Section MBR vstart=0x7c00 mov ax,cs mov ds,ax mov es,ax mov ss,ax mov fs,ax mov mov ax,0xb800 mov gs,ax; Output string: MBR mov byte [gs:0x00], ' M ' mov byte [gs:0x01],0xa4 mov eax,loader_start_sector; Start Sector LBA address: 0x2 mov bx,loader_base_addr; Address to write: 0x900 mov cx,1; Numb

As we all know, salt is a daily intake of elements, and the main ingredient of salt is sodium chloride, we know in high school chemical name NaCl. But this time we're not talking about the magical use of the table, according to a new discovery published by the Singapore Science and Technology research agency, that sodium chloride can be used to significantly increase the capacity of the hard disk. Specific

The composition of a hard disk Hard disk We will not be unfamiliar, we can compare it to our computer to store data and information in a large warehouse. Generally speaking, no matter which kind of hard disk, it is composed of se

The hard disk is composed of two parts, the main disk component and the control circuit board in the physical structure. Here is the introduction of the head disk components. The head plate is the meaning of the head and disk, and the header plate assembly includes t

This paper mainly describes the more popular Linux ext2 file system on the hard disk partition of the detailed layout. The next version of the Ext2 file system plus log support is the Ext3 file system, it and the Ext2 file system in the hard disk layout is the same, the difference is only the ext3 file system on the

page. During the installation process, I did not plug in the network cable and set the static address. However, when the installation Progress reaches 85%, there was no static traffic for a long time, so I had to Reboot, in this installation, I plugged in the network cable and used DHCP to obtain the address. The installation progress was paused at 85%, and the installation was successful. During installation, I wrote Grub information on the second partition of the second

The writing of the data is actually on the platter, the disk can be divided into the sector and the cylinder two units, of which the sector each 512bytes so large. The first sector of the disk mainly records two important information, respectively: Primary boot Sector (MBR): Where the boot loader can be installed, 446bytes; Partition table: Records the status of

When it comes to the power consumption of traditional hard disks, two major projects need to be considered. The first is the power consumption of the mechanical parts: it includes a rotary motor to drive the solid disc and a head drive arm (actuator) for locating the read-write head. More power is required to achieve a higher rotational speed, and the demand for electricity also depends on the disc diameter, the number of platters and the bearings use

hard drive. Hard drive low-level format, hard disk partition, hard disk Advanced format command to use carefully. (3) The use of floppy disk and male protection Do not read and writ

Original Works are allowed to be reprinted. During reprinting, please mark the article in hyperlink form Original source, author information, and this statement. Otherwise, legal liability will be held. Http://cutebunny.blog.51cto.com/301216/674443 I recently encountered a new problem. Record the series of Windows disk operations.In some cases, our programs need to distinguish between local storage devices and USB storage devices. You can search for t

Android obtains cpu usage, remaining memory, and hard disk capacity 1. Memory Information Detailed memory usage is available in proc/meminfo. The memory information I obtain here is obtained from this file. after obtaining detailed memory information, I extracted the remaining memory capacity from bufferdreader based on my own needs. Runtime runtime = Runtime.getRuntime();Process p;try {p = runtime.exec(CM

From http://blog.csdn.net/Treeyan In fact, it is not original. The materials are mostly from the Internet through Google. Some time ago I bought a hp-dv1702 laptop, core Single Core CPU, 5400 turn hard disk, watch a movie very good. the core CPU supports the speedstep technology. When you are not busy, it always works at around 800 MHz, with a low calorific value. The BIOS sets the fan start temperature to

Because of the need for learning, previously installed VM VMs in the Win7 system, and installed the Linux Redhat in the virtual machine, but after a period of use to find in the virtual machine open Linux is in trouble, and switch to Win7 under the Win7 system is also slow to run, So simply uninstall the VM, directly on the PC with dual system. Started to find a lot of tutorials online, but those tutorials are not particularly clear, for my rookie level of ITER, it really took a while to figure

asp.net| Design | network | hard disk To do the "network hard disk" function design, first of all to be familiar with. NET to manipulate files and folders. The file class and directory class are the two most important classes. Understanding them will provide a great convenience for the implementation of later functiona

found on the partition interface. The author uses SSD. In order to avoid the damage caused by frequent read/write on the hard disk, It is not divided into swap partitions. When partitioning, the reader can split one/and one swap partition. Finally, select "advanced" before installing the system and install grub in the linux partition. This will not affect Window

System.IO.File class and System.IO.FileInfo class In the design and implementation of "Network hard disk" process, will be a lot of use and file system operations related content. Therefore, this section first on the file system-related two. NET class for a brief introduction. The System.IO.File class and the System.IO.FileInfo class provide a variety of operations about the file and need to reference the

this sh file problem, so I wrote a sh, found also can not execute. The description is not a file issue. And then found/bin/bash *.sh can be executed,./*.sh is not, so try to add in the PATH environment variable./, the results found still not. So try to put *.sh Mobile/directory execution, found./*.sh. Suddenly, suddenly enlightened, must be home/home directory, executable permissions configuration and other directories are not the same, but/home under the directory are Rainey users of Ah, also