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The concept of cache coherence may be relatively new to you, but it’s a relatively important computer field concept. So today, this page will give you a general introduction to  cache coherence . Overview In computer architecture, cache coherence is the consistency of shared resource data, which is eventually stored in multiple local caches. Problems can occur with incoherent data when clients maintain caches of common memory resources, especially common for CPUs in multiprocessing systems. Each processor has a separate cache memory in a shared-memory multiprocessor system. It’s likely to have many copies of the shared data: one copy in the primary memory and one in the local cache of each processor requesting it. If one of the copies of the data changes, the other copies must reflect the change. Cache coherence is a discipline, and it ensures that changes in shared operands (data) values propagate throughout the system promptly. The following part lists the requirements for cache ...

  USB 3.0   is a revolutionize Universal Serial Bus standard, which is called the third generation of USB. It is a device that connects communication between the internal or external device and the computer system at a remarkable transmitting data speed that enables plug-and-play connectivity.   To be more precise, it is capable of transmitting data 10 times faster than the older version of USB2.0 from between computer and external devices, which is equivalent to an optimum rate of 5 Gigabits per second! USB 3.0 Connectors USB Type-A   USB 3.0 Type-A, the same as the plug at the end of a flash drive, is a rectangular USB connector. USB 3.0 Type-A is compatible with both USB 2.0 and USB 1.1 connection. USB Type B USB 3.0 Type-B, usually applied in printers and other large devices, is a square USB connector with a large notch. The USB 3.0 Type-B plug can only be used in USB 3.0 Type-B port, but previous plugs are all suit for USB 3.0 Type-B port. USB Mic...

  Vlog , a video blog or video log, refers to a form of blog for which the content is video, and is a kind of web television. Vlog often consists of video or a video link with narrating, caption, music, image, and other factors. People take vlog for reviewing a product, sharing daily life, or recording an event. It also emerges as a way to share the artistic or academic process, or provide a tutorial guide from all walks of life. In the last few years, “vlogging” has gained popularity in large communities or social media. As a form of digital entertainment, vlog can also deliver profound ideas compared to written blogs. Development In the 1980s: Nelson Sullivan, an New York artist, was famous for recording videos in a vlog-like style. On January 2, 2000: Adam Kontrasmade the first post, which later became the form of video blog in history. In November 2000: Adrian Miles created the term “vog” to refer to his video blog when posting...

Have you ever meet  “ USB Drive not showing full size “  issue but don’t know why and how to fix it? This article will introduce the “USB Drive not showing full size” issue and offer   methods   to fix it. Overview of the  “USB Drive not showing full size” issue USB storage devices such as external HDD, USB flash drive, pen drive, memory card, etc. play an important role in our life. We can store a large amount of data on an SD card or flash drive so that we can take them everywhere conveniently. However, the hard drive may show the wrong capacity in some cases, especially the shortage of total storage of used space and free space. In this way, you need to restore its full capacity. Why doesn't USB drive show full capacity in Windows? Generally speaking, the situations that a pen drive shows less space happens including:         ●The USB drive is made to a bootable disk. Installing bootable OS (operating system) such as Chrome or Linux. ...

This article introduces a reliable   data recovery software for you to recover files from the storage device . What is a storage device? A storage device may also be known as a storage medium or storage media that is used for storing, porting and extracting data files and objects. There are two types of storage devices that can be used on computers: primary storage devices, such as RAM, and secondary storage devices, like a hard drive. Primary storage device A primary storage device is quite smaller in size and it is designed to capture or hold data for a temporary period. Most primary storage devices are found inside the computer, and they have the fastest access to data.   Example: RAM ROM Cache Secondary storage device A secondary storage device has a larger storage capacity than the primary storage device and can store data permanently. It includes the hard disk, optical disk drive and external storage device. Common problems encountered with storage devices ● Hardwar...

  If you accidentally deleted messages or other important data like photos, videos, etc. on your new iPhone XS, XS Max, XR, relax! This article will teach you to  recover data from your iPhone XS . Recently, Apple released a new iPhone called iPhone XS, which is said to be the model of phone in the future. It supports wireless charging, full screen, dual camera, and larger battery and A12 processor. Besides, more and more consumers are pursuing and buying. However, users have a question, when you delete a text message from your iPhone, can you recover it? No matter how powerful functions your iPhone XS has, data losing still happens to them here or there. So when you found some important messages are lost one day, don't worry about it. And find a method for you to retrieve deleted text messages from iPhone 9, iPhone X Plus, or iPhone XS easily. Here we'll introduce three available ways of how to restore deleted messages and other data on iPhone XS. These three methods fully su...

  This article offers solutions to fix  “ Windows cannot recover the master file table “  error effectively. And  Bitwar Data Recovery   will restore the corrupted master file table and get back your data. When you try to access a partition on your windows, you may get the error “Corrupt master file table.” Windows will attempt to recover master file table from disk. And it reads “:\ is not accessible. The file or directory is corrupted and unreadable.” What will you do then? What is “master file table”? Master file table, the short form MFT, is a file contained in the NTFS file system. MFT is the most critical part in the NTFS file system, as it stores all information about a file such as size, time, date stamps, permissions, and data content. When a file is added to NTFS partition, its entry will be added to MFT. When the file is deleted from an NTFS volume, its NTFS entry will be marked as free for reuse. If the master file table gets corrupt, data in the NTF...