If you decide to spend even more money to get the Premium edition, you unlock the image and video repair feature, which comes directly from Stellar Repair for Video. For example, the Professional edition adds support for the creation of images from hard disks and volumes. ![]() Extra Featuresĭepending on which edition of Stellar Data Recovery you choose, you can get access to various useful extra features that can be helpful when dealing with more complicated cases of data loss. The latter scanning mode does a comprehensive file signature-based search that’s particularly useful for recovering the files that couldn’t be found with normal scanning. Users can choose between normal scanning and deep scanning. Recovery Capabilitiesįrom the recovery of data stored on damaged, deleted, formatted, and lost partitions on any storage media to seamless recovery for lost or inaccessible RAID hard drives, Stellar Data Recovery offers extensive data recovery capabilities, covering a plethora of different use cases. The recovery process itself, which we describe in detail in the next chapter, is also straightforward, consisting of just three main steps. While not particularly modern or stylish, its simple layout and clearly described options make it obvious which action the user is supposed to take next. If there’s one thing users almost universality like about this data recovery software, then it has to be its user interface. ![]() This isn’t something regular users are expected to ever take advantage of, but it’s great that this feature is available for professionals. Many other data recovery applications support far more file formats than that, but Stellar Data Recovery has one trick up its sleeve: it allows users to add new file types manually. You can find their complete list on this page. The application can recover over 200 file formats, including archive files, songs, database files, images, videos, documents, and more. Stellar Data Recovery supports NTFS, FAT, FAT16, FAT32, exFAT, Ext2, Ext3, Ext4, HFS, HFS+, and APFS file system. Let’s take a closer look at its main features and characteristics. Stellar Data Recovery is a comprehensive data recovery application designed to help its users deal with all kinds of data loss situations, and do so without requiring any expert knowledge.
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While using MacPaint that year, his then-three-year-old son expressed a desire to use the application. After leaving college he continued to write programs for his own education, and by 1988 owned an Apple Macintosh and had begun distributing software in the public domain. This impressed upon Hickman a desire to learn how to program. ![]() The program is currently in dormancy, with no updates since 2018.Ĭraig Hickman was studying photography at Evergreen State College in 1972 with the aim of taking a career in fine art photography when he encountered a friend entering code into a teletype in the college's terminal room. The application is now owned by Software MacKiev, who had been involved in development of the Macintosh version of Kid Pix Deluxe 3 and has been the sole developer of the Kid Pix series since the initial release of Kid Pix Deluxe 3X prior to acquiring the brand from Houghton Mifflin Harcourt in October 2011. Hickman was inspired to create Kid Pix after watching his son Ben struggle with MacPaint, and thus the main idea behind its development was to create a drawing program that would be very simple to use. Originally created by Craig Hickman, it was first released for the Macintosh in 1989 and subsequently published in 1991 by Broderbund. Kid Pix is a bitmap drawing program designed for children. ![]() Edition (Mac OS, Windows, iOS)Ĭlassic Mac OS, macOS, Microsoft Windows, AmigaOS, FM Towns, iOS ![]() If this also fails, the firmware must initiate OEM-specific remediation. If there is a problem with Windows Boot Manager, the firmware will attempt to boot a backup copy of Windows Boot Manager.If the firmware is not trusted, the UEFI firmware must initiate OEM-specific recovery to restore trusted firmware.After the PC is turned on, the signature databases are each checked against the platform key.You should contact your firmware manufacturer for tools and assistance in creating these databases. The PK can be used to sign updates to the KEK or to turn off Secure Boot. Microsoft requires a specified key to be included in the KEK database so that in the future Microsoft can add new operating systems to the signature database or add known bad images to the revoked signatures database.Īfter these databases have been added, and after final firmware validation and testing, the OEM locks the firmware from editing, except for updates that are signed with the correct key or updates by a physically present user who is using firmware menus, and then generates a platform key (PK). The Key Enrollment Key database (KEK) is a separate database of signing keys that can be used to update the signature database and revoked signatures database. If an image hash is in both databases, the revoked signatures database (dbx) takes precedent. The revoked list contains items that are no longer trusted and may not be loaded. The signature database (db) and the revoked signatures database (dbx) list the signers or image hashes of UEFI applications, operating system loaders (such as the Microsoft Operating System Loader, or Boot Manager), and UEFI drivers that can be loaded on the device. These databases are stored on the firmware nonvolatile RAM (NV-RAM) at manufacturing time. This includes the signature database (db), revoked signatures database (dbx), and Key Enrollment Key database (KEK). The platform provides the EFI_HASH_PROTOCOL (per UEFI v2.3.1) for offloading cryptographic hash operations and the EFI_RNG_PROTOCOL (Microsoft defined) for accessing platform entropy.īefore the PC is deployed, you as the OEM store the Secure Boot databases on the PC. The system must protect against rollback of firmware to older versions. When power is turned on, the system must start executing code in the firmware and use public key cryptography as per algorithm policy to verify the signatures of all images in the boot sequence, up to and including the Windows Boot Manager. Storage of secure variables must be isolated from the running operating system such that they cannot be modified without detection.Īll firmware components must be signed using at least RSA-2048 with SHA-256. ![]() It must also support secure authenticated updates to the databases. ![]() The platform must come provisioned with the correct keys in the UEFI Signature database (db) to allow Windows to boot. The platform must expose an interface that adheres to the profile of UEFI v2.3.1 Section 27. For more information, search for the system requirements in PDF download of the Windows Hardware Compatibility Program Specifications and Policies. Variables must be set to SecureBoot=1 and SetupMode=0 with a signature database (EFI_IMAGE_SECURITY_DATABASE) necessary to boot the machine securely pre-provisioned, and including a PK that is set in a valid KEK database. ![]() In order to support Secure boot, you must provide the following. When you add UEFI drivers, you'll also need to make sure these are signed and included in the Secure Boot database.įor information on how the secure boot process works included Trusted Boot and Measured Boot, see Secure the Windows 10 boot process. The OEM can use instructions from the firmware manufacturer to create Secure boot keys and to store them in the PC firmware. If the signatures are valid, the PC boots, and the firmware gives control to the operating system. When the PC starts, the firmware checks the signature of each piece of boot software, including UEFI firmware drivers (also known as Option ROMs), EFI applications, and the operating system. Secure boot is a security standard developed by members of the PC industry to help make sure that a device boots using only software that is trusted by the Original Equipment Manufacturer (OEM). ![]() Washington delivered the commencement speech at MAC entitled “Solving the Negro Problem in the Black Belt of the South”. The following year, Snyder asked again, and Washington agreed and promised that he would definitely deliver the speech this year. His friends planned for him a trip to Europe and as he was to sail out from New York on May 3 rd, he wouldn’t be back in time for the speech. He asked Washington if he would be able to speak at the commencement ceremony on JWashington agreed, but ended up cancelling the speech in April. Washington, who also had the same philosophy regarding land grant institutions. President Snyder began to contact Booker T. He strongly believed in the land grant philosophy that aimed to empower the sons and daughters of the state’s industrial classes. President Snyder was an important advocate for a strong definition of MAC’s mission and its role in the state. While serving as the principal of Tuskegee Normal and Industrial Institute in Alabama, he started becoming in contact with MAC’s President Snyder. Throughout his time of black advocacy, he had the support of all races and classes and was able to serve the community in a very influential way. ![]() Washington was the dominant figure in the African American community from 1900 until his death in 1915. Washington left a lasting impact at Michigan State. Although his visit to the university was short, the famous Booker T. As we continue to celebrate Black History Month, it is important to look back and highlight influential figures that contributed to the Michigan State community. ![]() Faith is the courage to dance to it today.” “Hope is the ability to hear the music of the future. “God didn’t promise days without pain, laughter without sorrow, or sun without rain, but He did promise strength for the day, comfort for the tears, and light for the way.” Truly he is my rock and my salvation he is my fortress, I will never be shaken.” “Truly my soul finds rest in God my salvation from him. “Faith is the bird that sings when the dawn is still dark.” “God is our refuge and strength, an ever-present help in trouble.” All things are passing God never changes. “Let nothing trouble you, let nothing frighten you. “Yesterday is gone, tomorrow has not yet come. “When we long for life without difficulties, remind us that oaks grow strong in contrary winds, and diamonds are made under pressure.” But it goes upwards, forward, toward the sun.” “Our way is not soft grass it’s a mountain path with lots of rocks. “Yesterday is history, tomorrow is a mystery, but today is a gift – that’s why it’s called ‘the present.'” “Cancer cannot cripple love, it cannot shatter hope, it cannot conquer the spirit.” “Hope is like the sun, which, as we journey toward it, casts the shadow of our burden behind us.” “You have to be willing to give up the life you planned, and instead, greet the life that is waiting for you.” If you or your loved one would appreciate a positive quote, here 20 inspiring quotes for someone going through a cancer journey: In this article, we compiled a list of our favorite cancer quotes that aim to inspire hope and encourage an optimistic outlook for those battling cancer. Having a supportive quote or two on hand can be a great relief when you are in need of some calming words to cherish or share. Whether you or a loved one is going through a cancer journey, learning how to give and ask for support can take time. When it comes to cancer, we understand that finding the right words can be a challenge. ![]()
![]() We won’t dwell on grizzly fish death, but should your fish fall too far in whatever make-shift fishbowl it finds itself in, run out of air or generally flounder you will be popped back to the most recent checkpoint to refine your approach. With its idyllic coastline and quaint villages Barnardshire might seem like a perfect slice of quintessential tranquility, but to our aquatic adventurers it’s alive with the very real threats presented by crossing roads, traversing rooftops, dodging deep fat fryers, avoiding wildlife including the cantankerous locals, not to mention fragile fishbowls and the very real problem that fish can’t breathe out of water. A simple, intuitive control scheme leaves no excuses should your fish perish leaving you feeling very gill-ty. Swim, roll, glide, chomp, flip flop, inflate, fly and bite your way through enthralling challenges. Flying Fish – a little aloof at times but a real softy at heart, with the ability to glide through the air! These plucky heroes will leave no bowl unturned, putting their heart and shoal into the mission to re-unite! Piranha – wild, chaotic, loud, unpredictable, and loves to bite – obviously. Meet our heroes! Goldfish – cheerful, brave, and adventurous, a natural born swimmer! Pufferfish – a little slow but kind-hearted who can also puff up into a ball and roll across land. Over the course of the game you join them as they swim, fly, roll and chomp their way to the open ocean from the far-flung corners of Barnardshire (the smallest county in England) in their bid for freedom and to re-unite once again. ![]() I am Fish is a charming, physics-based adventure starring four intrepid fish friends, forcibly separated from their home in a pet shop fish tank. Welcome to our review of the game called I am Fish, it may look easy but it packs quite the punch. This difference is called by a couple of different names, but the two that I've heard most often are V-on (Von) or V-overdrive (Vov). Now, there's loud, and then there's HOLY CRAP, A PLANE IS ABOUT TO CRASH INTO OUR HOUSE, WHAT THE IS THAT NOISE!?! We don't want to freak people out too bad, so we need to know how much louder (the difference between) our call is than the minimum needed for just our immediate neighbors (Vgs(th)). How do you get more people? You broadcast louder (Increase the range of your electric field - increase your Vgs). You only attracted your next door neighbors, so your party is kinda lame. Now you have a "continuous" n type path from source to drain. These accumulated electrons near the gate, form a bridge between the source and the drain (which are both n type). At this voltage, a positive voltage, it creates an electric field, which attract electrons (since our applied voltage is positive, so positive charges on gate). Vgs(th) is the voltage at which the mosfet channel begins to conduct. Have Vgs at Vgs(th)) your next door neighbors hear and come party with you. Given that your neighbors are some distance away (next door), your broadcast isn't loud enough (You are below Vgs(th)) Once you yell your invite loud enough (i.e. you apply a positive voltage at the gate with respect to the source. So you broadcast "PARTY AT MA HOUZE YOLO #SWAG!". You are hosting a party and inviting all the neighborhood electrons to attend. Beyond this, you risk damaging the mosfet.Īn N channel mosfet is essentially a P type sandwiched between two N type regions. In the datasheet you'll find an absolute term Vgss this is the maximum voltage that can be applied between the gate and the source. Vgs also comes up when you want to know the gate leakage. That 10V is the Vgs you need to feed your MOSFET for it to be happily turned on so it looks like a very low resistance. ![]() For example, it might be 77m\$\Omega\$ with Vgs = 10V and Id = 17A and Tj = 25☌. Rds(on) is always measured at a specified Vgs. That means that if you want your 20A MOSFET to really turn on fully (not just conducting 250uA) you need a lot more voltage than 4V to be sure about it, but if your Vgs is well under about 2V you can be pretty sure it's well turned off (at least around room temperature). For example, it might be 2V minimum and 4V maximum for a drain current of 0.25mA at Tj = 25☌ (the die itself is at 25☌). Vgs(th) is the voltage at which the MOSFET will 'turn on' to some degree (usually not very well turned on). Usually the actual breakdown is quite a bit different (borrowing from this datasheet): The Absolute Maximum Vgs is the maximum voltage you should ever subject the MOSFET to under any conditions (stay well away). Be sure to turn up Vgs slowly and carefully to avoid frying the transistor or resistor.Vgs is just the voltage from gate to source (with the red lead of the multimeter on the gate and the black one on the source). If you want to see the relationship more directly, remove R2 and replace R1 with a much smaller resistor, or even just a current meter. It looks like it only takes a Vgs about half a volt above Vt to get that much current. ![]() In your circuit, R1 limits your drain current to about 1 milliamp, which is pretty small. This region is used for analog circuits like amplifiers. ![]() The MOSFET acts like a voltage-controlled current source. ![]() The amount of current is proportional to the square of Vgs, and is (almost) independent of Vds. Simplifying a bit, they are:Ĭutoff (Vgs Vt and Vds Vt and Vds > Vgs - Vt) - current flows from drain to source. There are three basic regions of operation for a MOSFET. You will also have access to lounges, study areas, and 24-hour computer labs if you are living on campus. They also hold special programs to help you hone your skills outside the classrooms. The university has 14 residence halls that take care of your overall growth by providing a very supportive environment.
Yes, you can make an array volatile in Java but only the reference which is pointing to an array, not the whole array. ![]() This is one of the tricky Java multi-threading questions you will see in senior Java developer Interview. Multithreading, Concurrency and Thread basics Questions I am sure you have seen many of these questions personally on your interviews and many of you would have answered them correctly as well. So now the time has come to introduce you to this MEGA list of 120 Java questions collected from various interviews of last 5 years. It will take you to some of the most important topics for Java and JEE interviews, worth reading even if you are not preparing for a Java interview. You guys are also lucky that nowadays there are some good books available to prepare for Java interviews, one of them which I particularly find useful and interesting to read is Java Programming Interview Exposed by Markham. Multithreading, concurrency, and thread basics.To give you an idea, this list of Java interview questions includes the following topics: I have also worked hard to keep this list up-to-date to include what interviewers are asking nowadays and what will be their core focus in the coming years. No matter whether you are a Java developer of 1, 2, 3, 4, 5, 6, 8, 9, or even 10 years of experience, you will find something interesting in this list. ![]() It has questions for both entry-level Java programmers and senior developers with years of experience. It contains interview questions not only from classic topics like threads, collections, equals and hashcode, sockets but also from NIO, array, string, Java 8, and much more. I have been preparing this MEGA list for quite some time and now It's ready to share with you guys. Since I like to explore interview questions, I have got this huge list of questions with me, which contains lots and lots of questions on different topics. ![]() concurrency, algorithms, data structures and coding. NIO, patterns, sophisticated unit testing or those which are hard to master e.g. Nowadays, you will get questions from the areas where not many Java programmer looks e.g. When I started my career, questions like Vector vs Array and HashMap vs Hashtable were the most popular ones and just memorizing them gives you a good chance to do well in interviews, but not anymore. Gone are the days, when knowing the difference between String and StringBuffer can help you to go through the second round of interview, questions are becoming more advanced and interviewers are asking more deep questions. Time is changing and so is Java interviews. ![]() With TinyPNG the background becomes transparent again. Still need to support Internet Explorer 6? It normally ignores PNG transparency and displays a solid background color. Is it supported everywhere?Įxcellent question! The files produced by TinyPNG are displayed perfectly on all modern browsers including mobile devices. I have excellent eyesight but can’t spot the difference either! Use the optimized image to save bandwidth and loading time and your website visitors will thank you. In the above image the file size is reduced by more than 70%. The result better PNG files with 100% support for transparency. All unnecessary metadata is stripped too. By reducing the number of colors, 24-bit PNG files can be converted to much smaller 8-bit indexed color images. ![]() The default options in Image Resizer for Windows are suitable for most situations, but if you need more control over your batch image resizing and format conversions, you can click on the Advanced Options button in the utility’s interface.File size 57 KB vs Shrunk transparent PNGĮxcellent question! When you upload a PNG (Portable Network Graphics) file, similar colors in your image are combined. Now, my images are the desired size and I’ve also saved quite a bit of space with most images seeing a greater than 10x reduction in file size. In the case of file 3, however, it didn’t resize the image because its original dimensions were already smaller than 1600 pixels. With everything set, just click Resize and you’ll have your new batch resized images waiting for you.Īs you can see in the screenshot above, based on the Dimensions column in File Explorer, the utility resized my images so that the largest dimension is no longer than 1600 pixels. ![]() I also enabled the option to avoid resizing pictures that are smaller than my desired maximum size. By default, the utility creates new copies of the images to resize, preserving the originals, but you can elect to replace the originals instead if you’re sure you won’t need them later.īack in the example above, I set the pixel size to 1600 x 1600, with the Fit option selected so that my files will retain their original aspect ratio. Once it’s installed, you’ll see its options in the context menu when you right-click on image files.īeyond setting a desired pixel size, you can also choose to make pictures smaller but not larger, which avoids enlarging small images and degrading their image quality. To get started, head over to the Image Resizer for Windows website to download and install the application. Resize Multiple Images with Image Resizer for Windows Here’s how to use it so that you, too, will never have to resize multiple images by hand again. One of our favorites is Image Resizer for Windows, a nifty app that integrates directly into your right-click menu and offers a number of powerful options for image resizing and format changes. But if you need to resize multiple images, this manual one-by-one method is incredibly time-consuming and inefficient.While there’s no simple way to resize multiple images using the built-in tools in Windows 10, there are a number of free third-party utilities that can do it for you. If you want to resize a single image in Windows, you could open it in an application like Paint or Photos and make the change manually. How to Batch Resize Multiple Images in Windows 10 |
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