exists in the array
Key--Get the key name from the associative array
Krsort--Reverse order of array by key name
Ksort--sorting arrays by key name
List--assigns the values in the array to some variables
Natcasesort--Using the "natural sort" algorithm to sort the case-insensitive letters of an array
Natsort--Using the "natural sort" algorithm to sort the arrays next--Move the inner pointer in the array forward one
POS--The alias of current () prev--Returns the internal pointer of the array back t
When we are in the WINDOWS10 system because of the continuous downloading and deletion of the job, the disk slowly appear in the so-called "fragmentation", time is long, will cause the disk's access efficiency will decline. At this point, we can use the system with the "disk defragmentation" function to detect maintena
In today's computer systems, disk defragmentation is ubiquitous, and disk defragmentation is the removal of disk-fragmented files by cleaning up the disk's junk files to free up more
1. When defragmenting the disk, "Disk Defragmenter detects that CHKDSK is scheduled to run on Volume: Data (E:), run Chkdsk/f", in which case the defragmentation is not allowed.
2, open My Computer, right-click on the appropriate partition, find the properties,
lot of space for the disk, and its ultimate goal is to make the operating system cleaner and more stable.
Disk defragmentation:
Files are distributed to different places throughout the disk, rather than being kept on disk cont
Disk defragmentation is an operation that we often use when we operate a computer. Disk defragmentation is the removal of disk-fragmented files by cleaning up the disk's junk files to f
The system is used for a long time, will produce disk fragmentation, too much fragmentation will not only lead to system performance degradation, but also can cause the loss of storage files, serious, even shorten the hard disk life. As a system maintenance tool, Windows Optimization Master provides Windows2000/xp/2003/vista users with
Disk defragmentation is the Disk Cleanup optimization tool with Windows, when the computer does not install other optimization software, you can directly use Disk Cleanup to solve the miscellaneous files in the hard drive, to ensure the life of the hard
After a hard disk has been in use for a period of time, the free sectors on the disk are dispersed to the discontinuous physical locations throughout the disk because of repeated writing and deletion of the file, thus making the file unable to have contiguous sector classes. In this way, read and write files need to go to different places, to increase the head mo
For older players, the word "Disk Defragmenter" must be a stranger. As a built-in windows for the hard disk and other storage devices to defragment the tool, to some extent, reduce the hard disk miscellaneous files piled up, speeding up the speed of disk operation, thereby enhancing the overall speed of the computer. T
The following content reproduced from: http://forum.ubuntu.org.cn/viewtopic.php?t=27451
The idea of defragmentation is mainly among two types of friends, one is the friend affected by Windows, and the other is a friend who has a certain degree of understanding of the principles of the operating system.Let me briefly e
If you are using a Windows XP operating system, be aware of disk defragmentation issues.
1. Why do you need to defragment?
File layouts on disk strongly affect I/O performance, and files and directories that are heavily fragmented or scattered on disk can compromise performance, although Windows XP automatically redi
People in the process of using the Win7 system will encounter a lot of questions about the system, this time you need to develop a Win7 disk defragmentation plan, so as to ensure the normal operation of the system, first of all, you need to base on this Win7 disk defragmentation knowledge.
Windows7 system Win7
Windows 7 with simple design, fast operation of the operating system quickly occupied the market, but you have not found that in the system running for a long time, the rapid operation of the Win7 also seems to be bored in general, the speed slowly down. The reason, most likely is that the computer in the fragmentation of the hard drive running speed down.
The Windows operating system has the ability to defragment the
The vast majority of computer users are using the Windows system, we all know that when the computer is slow to use, one of the ways is disk defragmentation, but in the Linux system, there is no disk
Reprint to: http://beikeit.com/post-495.html simple translation: This Linux official information mainly describes the external fragments (external fragmentation), internal fragments (internal Fragmentation) concept and the related situation, it shows that the Linux file system in the case of 5% free disk space is not required to defragment. (Linux native file systems do not need
56 kbps/8 = 7 kbps, that is, 7 kb of Data downloaded per second.
In the operating system, the disk capacity is 1024 in hexadecimal format between GB, MB, and kb. Hard Disk manufacturers usually calculate the disk capacity based on 1 GB = 1000 MB and 1 MB = kb.
method of Win7 system using defragmentation to solve disk failure problem
The specific methods are as follows:
1, the failure of the situation you will often encounter, similar to the self-test;
2, click the Start menu to select All Programs;
3, click the Attachment menu bar, select the inside of the System tool column;
4, click the
How does the Win7 system turn off the automatic defragmentation service? This article mainly introduces the Win7 system as the column, tells the manual turn off the computer automatic defragmentation service The tutorial, needs the friend to turn off the automatic defragmentation service under the reference.
1, click on the Windows Start icon, click on the Contr
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