July 2021

How to retrieve deleted files on a computer?

Want to retrieve deleted files on a computer? We sometimes delete a file by clicking the “delete” button, dragging the file to recycle bin, or clicking “Shift+Delete”. And most people do that accidentally and need to recover the deleted file, so the big question is how to recover these deleted files? Therefore, during this article, I’m progressing to discuss all the sensible strategies to recover deleted files on Windows 10/7/8.

How to Recover Deleted Files from PC?

Method 1:

Restore files from the Recycle Bin If you delete files through the delete option directly, then the file can go in the recycle bin, within which case it may be performed recycle bin deleted recovery.

1. To open the recycle bin, simply move to your desktop, then to the recycle bin folder.

2. Next find the file you wish to recover, right-click on the file and choose Restore. The file can then be restored to its original location.

Method 2:

Restore the previous version of the deleted/lost get into Windows 10 and 8: recover deleted files windows ten

1. Right-click on the file, then choose properties and move to the Previous Versions tab.

2. Within the “File versions” list, choose a version you’d wish to restore. Click the “Open” button. Then, click on the “restore” button. You may have to be compelled to save this as a unique file name to prevent any files been overwritten.

Also Read: Data Backup Types, Methods, and Rule

In Windows seven: recover deleted files windows 7

1. First of all Open laptop by clicking the start button, then the laptop

2. Navigate to the folder that you want to contain the file or folder, right-click it, and so choose to Restore previous versions. You will see an inventory of accessible previous versions of the file or folder.

Method 3:

Restore file In Windows 10:

1. 1st move to the beginning menu, then settings and choose Update & Security.
2. Next click Backup then choose to keep a copy option File History and click the more button.
3. Scroll down till you get to the section “related settings” and click on “restore files from a current backup”. Choose the file that you wish to revive to its original location and so click on the “restore” button. A repetition box ought to seem with a share vie standing. One complete, you’re all done.

Also Read: Why content marketing is important to your business?

Method 4:

Retrieve deleted files: Restore the permanently deleted files from the computer with the help of software like recover it. After deleting files permanently through the “Shift-Delete” option, then the above-mentioned methods cannot help you to recover those files.  In such a situation, the use of software like recover it becomes beneficial.  Recoverit may be the simplest recovery software package for the laptop to recover for well-deleted files. Easy steps on a way to recover for well-deleted files in windows 10 are as follow:

1. After installing the Recoverit Deleted Files program, choose a location wherever your files were deleted from, and click on the “Start” button.

2. Wait for a touch whereas for it to scan for the files.

3. Once scanning, the recovered files may be previewed, next choose the files you wish to recover and easily click the recover button. Hence the permanently deleted files will be restored.

Also Read: Data backup in-depth: what does data backup mean?

Data Backup Types, Methods, and Rule

Data Backup Types: Nowadays, data backup is an important strategy for protecting your important data from losses that occur due to various reasons like natural calamity, theft, technical errors, etc. 

Types Of Data Backup: 

There are four types of data backup and they are:

• FULL DATA BACKUP: Full data backup is when you copy all the information in the database including all files and folders.                     

One of the greatest advantages of full data backup is the ability of data restoration, but on the other hand full backup itself consumes a huge amount of time. 

Also Read: Why Content Marketing Is Important To Your Business?

INCREMENTAL BACKUP: Incremental data backup only those files which have undergone certain changes from the point where the full or differential backup has occurred.                   

• The advantage of incremental data backup is that, unlike full data backups, incremental is much faster and consumes less storage space.

• DIFFERENTIAL DATA BACKUP: Differential data backup only stores those files which undergo certain changes from a full backup. Differential takes quite less amount of time for backing up data and it consists of a fast restoring rate, but whenever new data is added then it consumes more storage space.
• MIRROR DATA BACKUP: Mirror data backup is similar to full backup except that they can be password protected and files aren’t zip compressed. The greatest advantage of mirror backup is that they can back and restore data at a faster rate, but on the other hand they consume a lot of storage space.

Also Read: Data Backup In-Depth: What Does Data Backup Mean?

METHODS OF DATA BACKUP: 

Some methods of data backup are:

1. BACKUP DATA TO THE CLOUD: Cloud storage is a good option that helps in data backup: Providers use multiple storage servers in multiple locations, creating an additional backup for what’s already been backed up to the cloud.
2. Cloud storage uses encryption systems to secure data.
3. Information is accessible anywhere using an internet connection.
4. Improves space efficiency since files are backed up & stored externally.

• DMS SYSTEMS & CLIENT-SERVER BACKUPS: Client-server backups allow the information and records from all company computers to be backed up to a central server.
• The client computers can be controlled by the server, allowing a single individual responsible for the server to manage DMS backups company-wide.
• BACKUP SINGLE DEVICES WITH THE USE OF EXTERNAL HARD DRIVES: For a smaller company or individuals with personal work files, an alternative to large-scale client-server backups is using external hard drives for backups.

As the technology advances, storage capacity is growing while cost is going down slowly allowing some computers to be fully backed up to a single drive.

• OFFSITE BACKUP STORAGE: Instead of losing important data due to various reasons like floods, earthquakes, theft, etc, having a physical copy of the data is always a safer option.

Also Read: Why Should You Get An Online Data Protection Solution For Your Business?

3-2-1 RULE OF BACKUP:

For backing up data you must follow the 3-2-1 rule which says:

1. Keep 3 copies of all your data.
2. Backup digital files to at least 2 formats.
3. Keep 1 physical copy offsite in case of natural calamities like floods, earthquakes, etc.

Data backup in-depth: what does data backup mean?

Data backup refers to making copies of data so that the copies may be useful in case if it gets lost. Backups are mostly used for restoring important files that have been lost due to various issues like data corruption, data deletion, and disaster, etc. 

IMPORTANCE OF DISASTER RECOVERY

A disaster recovery plan is defined as a set of actions to be taken before, during, and after a disaster and is made to help protect the business in such an event.

Disaster recovery plans and the preventative measures they include are essential for stopping disasters from occurring firstly. Business companies can’t avoid disasters, but having a perfect plan will be beneficial to prevent the maximum amount of loss.

Here are a few statistics to put a number on a disaster recovery plan’s importance:

In 2012, Hurricane Sandy made more than $68 Billion of 5demage. Over 50% of businesses can only handle 1 hour of downtime without significant financial damage-including potentially closing their doors.

Also Read: Why should you get an online data protection solution for your business?

Benefits of having a plan:

• Minimize recovery time and possible delays.
• Prevent potential legal liability.
• Improve security.
• Preventing potentially damaging last-second decision–making during a disaster.

There is three main disaster recovering plan strategies that are often used: 

Detective measures 

Corrective measures

Preventive measures

Preventive measures are used to identify, address, and reduce environmental and other risks to shop disasters from occurring in the first place.

Also Read: Social Media Marketing: Top 10 Social Media Marketing Trends of 2021

BACKUP STRATEGIES:

4 elements for a good backup strategy are automated, regulate, duplicate and restore.

Automate: Don’t rely on somebody to go down to push the button to start the backup every day because some days it won’t happen. Computers are very good at a repeat but humans are not.

Regulate: Regulate what you are backing up. Think about how much data you are producing and how often you should back it up. Many people will just back their data once a day at the end of the day. If you have got a larger workforce say 10 staff or more, you might want to go to backup at lunchtime and backup at the end of the day because if you have a calamity at 3 p.m. at least you have lost only about three or four hours work, not the entire day.

Duplicate: Many business owners are moving to cloud-based services and it’s a good thing but don’t rely on it 100% because when you upload the original amount of data, it eventually becomes large over a year. Now if you have a full disaster recovery and you need to download the whole data, then it will take a huge amount of time. So just back up the data to a local hard drive and the cloud.  

Restore: Make about 3 to 4 copies of data. It will help you at the time of restoration.       

DATA BACKUP OPTIONS:

• USB sticks whether it is small or cheap, USB sticks are the safest device for data backup.
• Cloud storage.
• External hard drive.
• Printing.
• Network-attached storage.

Best Data Backup and Recovery Solutions:

We at GreenEdge Computers offer the best data recovery and backup solutions to our clients. We have datto, the comes with the best data backup and recovery solutions. 

Why should you get an online data protection solution for your business?

Online data protection solution is the process of safeguarding important information, aiming to minimize business loss by guaranteeing data integrity and availability. Online data protection solution enables data backup, disaster recovery, business continuity techniques, cybersecurity management, ransomware prevention, regulations compliance, etc. Protecting data from compromise and restoring data after corruption are the main goals of online data protection solutions.

Here are some situations where online data protection solutions would become handy: 

1. Media failure:  Here online data protection solution’s goal is to make data available even if a storage device fails. This can be accomplished with Synchronous mirroring, RAID protection, Erasure coding, and Replication.
2. Data corruption: If data is corrupted or absently deleted, it can be restored with snapshots or clean copies of the data storage system at particular points in time. Most storage systems can nowadays decode snapshots without any hurdle and within a short period. When data gets deleted then a snapshot can help you to restore those data easily.
3. Datacenter failure: Online data protection solution against the loss of an entire data center requires a full disaster recovery plan. Snapshot replication can be costly cloud services are another option for this.

Online data protection solutions will provide various advantages for your business and they are:

Protects valuable data:

One of the advantages of online data protection solution is that it safeguards valuable information that could be an essential plus to your company. Several organizations deploy measures to protect their data from being accessed by unwanted people. For instance, not all data in a company should be seen by all the workers. Personal details should stay non-public between the worker and the head of the department. Therewith same, data protection will facilitate keeping such data from others’ eyes.

Staying one step leading than the competition:

Keeping your data protected additionally helps you to stay in lead than your competitors. By protective the data of your purchasers, it’ll increase capitalist confidence that is healthy for your business. To protect your data security, you would need to get very good reputed software. This may assist you to defend your valuable data from any close threats or attacks.

Also Read: Social Media Marketing: Top 10 Social Media Marketing Trends of 2021

Defend against hackers

Online Data protection solutions will create it tough for hackers to access sensitive data. This might include some key information about businesses like names, addresses, phone numbers, email accounts, bank details, health data, etc. By safeguarding necessary and sensitive data, you’ll be able to prevent criminals from doing fraud, phishing scams, or alternative varieties of dishonorable activities

It Prevents your website from downfall:

For businesses that have their website, a possible cyber breach might cause a significant drawback. If your data is accessed by unauthorized folks, it’s potential that your website may be forced to shut otherwise you might have expertise period. This might affect your revenue as you’ll lose cash from transactions.

Better Business Management

As online data protection solution needs higher management and storage of data, this will prompt business companies to possess higher business practices. Using smart business ethics might encourage customers to patronize your business.

Data-protection solution is a method of securing knowledge and necessary data from being compromised or corrupted. It’s going to be a challenge for several organizations; however, it permits businesses to grow faster.

Which is the best online data protection solution?

Datto is one of the best and top-rated data protection solutions. It protects, secures, and saves your data from accidental deletion. We at GreenEdge Computers offer the best online data backup solutions. Contact us now to know more.

Also Read: Social Media Marketing: Top 10 Social Media Marketing Trends of 2021

What are the benefits of structured cabling solutions in Dubai?

Structured cabling solutions in Dubai: Structured cabling is a kind of infrastructure that boosts an organization’s cabling system or network performance. It acts as a glue that connects all PCs, phones, and other devices used within the business together – implementing a reliable and versatile solution to a broad range of communication requirements. The organized cabling systems’ importance will differ from business to business. Still, it ensures a highly reliable and cost-effective network infrastructure that will stand the test of time for the majority. Let’s move forward and look at the benefits of structured cabling solutions in Dubai.

Benefits of structured cabling solutions in Dubai are

Future Proof Investment

One of the most significant benefits of structured cabling system solutions in Dubai is the high bandwidth, making it a safe infrastructure for encouraging business growth. In today’s competing business world, having flexible IT that is scalable and can respond promptly to industry changes is important. In addition, to retain existing customers and continuously obtain new ones, businesses need a data center that supports the quick and secure development and deployment of new services. With structured cabling solutions, you can be assured that your network infrastructure won’t become outdated and will provide support to all emerging applications as your business expands.

Related Blog: Reasons you should have security cameras (CCTV cameras) for your Enterprise

Cost-Effective

Structured data cabling is one of the cost-effective solutions that will help you smoothen your business’s process. This scalable and extremely flexible network will produce a continuous flow of information and cope with its high demands. This, in turn, will increase productivity and lead to the success of the business. In addition, one simple cabling system not only reduces power and maintenance costs but also eliminates the time and money invested in locating and rectifying any issues.

Enhanced Flexibility

A structured cabling system implements an enhanced level of flexibility – encouraging your business to enhance performance and drive business growth. So it is because it can instantly and easily support moves, adds, and changes. Also, dramatically decrease installation time and ensure optimum adaptability to any network infrastructure modifications. The flexibility also makes the system simple to take apart and move to a new office location.

Keeps Your Business Neat and Tidy

One of the unacknowledged advantages of structured cabling is that they encourage companies to keep looking good. Representatives, users, and clients don’t require to see a snake’s nest of various Ethernet cables, phone cords, & coaxial cables crawling all over your workspace floors, stretching out in the open space or on the walls, or sliding along with your ceiling.

Related Blog: What is Datto, and what are the benefits of using Datto?

Simplicity

A higher level of integrity and straightforwardness begins with an organized cabling system solution in Dubai. In a standard office environment, various devices and IT equipment are being used simultaneously, so running everything off one system reduces the complexity of having various wiring infrastructures in place. For instance, it is far more comfortable to recognize if an issue occurs and solve it with structured network cabling. As a result, it involves far less time and money lost in the long term.

Also Read: Structured cabling system

Reduced Risk of Downtime

There is a higher risk of human error and blunders being made with various unorganized cabling structures, which can lead to workflow disruptions and network downtime. But, a well-planned cabling system also involves more comfortable troubleshooting, so it’s simpler to identify and amend faults quickly.

Also Read: Structured cabling Dubai

Cybersecurity

Although modern technology has made a company’s operations more flexible and effective, it can complicate some things. For instance, systems can quickly get corrupted & resources led to some other errands. Such types of circumstances can never show in a structured cabling system.

This structured cabling system presents unique security features and functionalities that only authorized users can get. With such kinds of systems in place, difficulties with cybersecurity have no chance in your company.

Related Blog: Why do you need the Best IT Company in Dubai for your business?

Conclusion

Unlike the traditional point-to-point cabling system, fiber structured cabling systems are always handy. But, of course, the initial steps of the wiring will need a lot of planning. We hope that you like this blog on the benefits of structured cabling system solutions in Dubai. We at GreenEdge Computers offer the best Structured Cabling services in Dubai. Contact us now.

Click here to get the best quote for structured cabling solutions for your business now or fill your info

Why do you need the Best IT Company in Dubai for your business?

Looking for the best IT Company in Dubai? You need to read this blog. In today’s time, running a business involves a lot of things like balancing the demands of the business versus giving money to someone to do those jobs. Since the business’s advancement, the most commonly outsourced jobs are IT support services. When we talk about IT support services, we refer to the benefits of an IT support person or team without employing them fully or part-time within the company. By employing IT solution services, you can get access to various benefits. These benefits involve- Better cost management managing those expenses for start-ups and SMEs is the solution to initial success.

However, for larger established businesses, accurate cost management underpins strong growth. It is because IT expenses can be high, and the cost of having a service that stops working, such as customer databases, websites, or even ordering systems, can take the business in terms of loss of reputation and revenue. So utilizing outsourced IT support services allows better cost management than owning someone working in the company all of the time – you spend as you utilize it. So, if you are looking for the best IT Company in Dubai for your business, keep reading.

Why should you consider the Best IT Company in Dubai for your business?

1. Advanced company security

IT security is a large issue, even if your company employs a payment processor to manage those transactions. You have to secure the information you hold on your clients and take reasonable steps to make sure that no one can access it. Understanding what those steps are and placing them into place can be done better while working with an IT support services company than just studying on the internet.

Also Read: Several Benefits Of Mobile App Development in UAE To Businesses

2. Find the right tech solutions

It is one of the crucial things that you need to keep in mind if you want your business to stand out from its contenders by employing the right tech solutions that allow a better customer experience. But discovering what these are can be expensive and time-consuming. Working with IT professionals indicates that you can access their expertise and knowledge as you want to get the best solutions for the company.

3. No expensive IT investment

If you own an in-house IT specialist, then you have to equip them. That can involve a range of software and even hardware they require to do their jobs. However, when you outsource it, the company comes with everything they require, so there is no demand for your business to make a high-priced IT investment. Of course, they may suggest adding or amending software or changing hardware, but this would be for the company’s performance rather than just for the IT support’s use.

4. Get the most advanced tech first.

As with any specialist, they always understand the latest and most prominent developments in their industry. That implies that you can use their knowledge to upgrade your IT systems and hardware to benefit the business. It will also lessen the chance of you committing mistakes in acquiring where you buy something, which is not the best solution for the work you wanted.

Related Articles: What is an IT AMC and why should you hire the best IT AMC Company in Dubai?

5. Effective disaster recovery

Disaster can strike at any time, no matter how thoroughly prepared your business is. Natural disasters, freak storms, a fire, all of these can lead to serious harm to your company and corrupt IT systems. However, by operating with IT specialists to set up an emergency management plan, you have backups in place that will make sure that your company can retrieve it as soon as possible if anything worse does happen.

6. Working with professionals in the Best IT Company in Dubai

Outsourcing roles such as bookkeeping, IT support services, and marketing is now a standard path for businesses of all sizes to practice. By having the best professional on hand but not on regular payroll, you can notice the benefits of their expertise without the requirement and cost of employing them within the company. If you want to Hire the Best IT Company in Dubai contact us at GreenEdge Computers.

What is Datto, and what are the benefits of using Datto?

Datto is a great data backup solution. Its advanced solutions provide a robust software platform, virtual options and custom physical hardware connected securely to the Cloud. Datto presents the most effective and seamless backup and Disaster Recovery (BDR) and resolutions available through best-in-class solutions based on higher technology.

Advantages Of Datto Data Backup Solution Are As Follow

Datto extends Hybrid Cloud technology where some elements are on your premises, and others are positioned in the Cloud. It offers several benefits that are as follows.

Optimize bandwidth utilization

Datto is knowledgeable when it comes to how much bandwidth you own. It exerts bottlenecks into account while copying your data between local devices and Cloud locations. You can also schedule replication to keep everything running during business hours. Just the modifications in your data are replicated to supply better performance and lower network utilization.

Enhanced fault tolerance

If you have copies of your data in more than one place, you have a better chance of recovery. Also, you’re covered against media damage or hardware caused, for instance, by fire or flooding in your office. Possessing devices on your premises and in the Cloud (Hybrid cloud model) also improves fault tolerance against fraud or component failure. 

Related Articles: What is Data Backup and Recovery and how Datto can help?

Better integration

Datto stores multiple replicas of your data, thus making it the best data backup solution. It enhances integrity by assuring that you’re able to roll back to a time before file or data corruption occurred. Datto can also create virtual backup images, substituting patches of corrupt data with known good versions from other copies.

Quick recovery of data

Depending on the recovery status, you can restore data or images from the location that allows the highest performance and the lowest recovery time. As a result, functionality is resumed in the shortest possible time.

High-level of Verification

A business continuity solution must work when required. With this in mind, a fundamental enabler in 

 the integrity of data and images before they are required. This functionality (screenshot backup verification) is incomparable to Datto’s business continuity solutions and provides:

• Automated verification and testing
• Alerts when unforeseen events occur in recovery tests
• Images and VMs are tested to make sure that they are bootable

Related Articles: What is an IT AMC and why should you hire the best IT AMC Company in Dubai?

Immediate continuity through virtualization

Suppose you have backed up an image of a virtualized server. In that case, Datto can start up the virtual machine (VM) immediately on your on-premise device and even from the Cloud, typically within five seconds.

It works as a saviour in a situation where you have access to crucial services and don’t have additional hardware to hand. It could save you hours of downtime when you most require it.

You can set CPU, memory and network resources on the resulting VM without a restart too.

 Advanced Features

Safeguard against backup corruption

If any of your data is lost or corrupt, it can be extracted from previous images, building a new and complete image.

No compromise and no risk

Datto employs its inverse chain technology to create images like sophisticated incremental backups in a way that optimises backup time but also  ensures that there is no risk from integrity issues.

Intelligent Audit Trails

Datto’s Backup Insights functionality creates an audit trail from its images and data. You can use it to identify file updates and deletions in the process of maintenance and troubleshooting.

Best recovery speeds

Some snags are possible. Seeking to piece together a bootable image (or sets of files that are not corrupt) from various backups is a nightmare and can cause hours of extra downtime. Creating a bootable image before trying a restore (known as Inverse chain technology) is valuable in these types of scenarios when time is of the essence.

Ready for Virtualization and Optimization

Image-based backup of data and VMs ensure that fast system restoration and optimal backup, and least traffic across the network are optimal. Furthermore, Datto is a comprehensive data backup solution for virtualized environments.

Also Read: Several Benefits Of Mobile App Development in UAE To Businesses

Hybrid Cloud Backup by Datto. What are the benefits of Hybrid Cloud Backup?

Datto is an American cybersecurity and data backup organization. Established in 2007 in Norwalk, in 2017 it became a subsidiary of the Vista Equity Partners and merged with Autotask Corporation. Datto is a foremost provider of backup, disaster recovery, and business continuity solutions targeted to small to medium businesses. Datto solutions are created around the hybrid cloud platform, the most secure and economical way for end-users to back up their data securely and ensure that it is recoverable in case of any disaster scenario.

What is Hybrid Cloud Backup?

Hybrid cloud backup provides a mixture of cloud data backup and storage with local backup. The cloud storage is combined with the local backup to ensure critical data is guarded in the event of a disaster. A hybrid data backup solution automatically backs up critical data to a distant server in the cloud, while a local backup is typically performed using a drive on the local network which is a shared or network-attached storage device. If the local backup fails, the cloud storage and backup assure that data can be recovered in the event of a loss.

There are several benefits of Hybrid cloud backup. Some of them are discussed below:-

Data Insurance:

The hybrid cloud backup process creates a backup locally, and then a backup of the backup is replicated off-site. That provides an excellent deal of data protection. With local hardware, all data is in-house, guarded by preexisting firewalls, security protocols, and the encryption inherent to the backup device. Moreover, by transmitting encrypted data to dedicated data centers, users are ensured that there are redundant copies of the data secured off-site. This is priceless in the event of a disaster. The combination of local and off-site backups affords far more peace of mind than simply pushing data over the web to a backup service provider or strictly housing data locally on a NAS or in a data center.

Business Continuity:

Business continuity, in the context of data backup, implies that in the case of a disaster, cyber-attack, human error, etc., a company will never lose access to its critical data and applications. In the data backup industry, the loss of access to business-critical data is referred to as downtime. Business continuity is crucial to any business because downtime can probably bring operations to a pause while IT issues are being fixed.

This can be much costly for any SMB to endure. While proper business succession planning is required throughout a company, one technology that allows continuous up-time is the virtualization of servers and workstations. A virtualized server or workstation is generally indicated as a virtual machine. This is a copy of a workstation or server that operates on the hardware of a cloud server, as opposed to the hardware of the original production machine2. The virtual machine is booted off of a production machine’s backup file that is housed in cloud servers. Once the virtual machine is booted, every aspect of the virtual machine will run exactly as the primary machine did.

Also Read

What is an IT AMC and why should you hire the best IT AMC Company in Dubai?

 Reduced Cost:

As operating and maintenance costs are decreased, the cost of ownership of the hybrid backup system is decreased. With this solution, you will be spending a monthly or yearly subscription since cloud services have a pay-as-you-go model. You get total control of monthly expenditures and the potential to scale storage with this model. You can enhance or reduce the storage by only engaging the service provider’s customer support.

Related Articles: What is Data Backup and Recovery and how Datto can help?

 Improved Security:

When compared to cloud backup or on-premises backup, a hybrid solution can greatly increase security. With a hybrid solution, you can save sensitive data on your dedicated infrastructure to have stronger control over it. A hybrid solution increases network security, particularly when accessing data using the public internet.

Additionally, you could keep sensitive information on the cloud rather than your dedicated infrastructure. Several cloud providers are guarded by biometric scanners, armed guards, their network security system, and physical traps.

Standards Compliance:-

For some enterprises, it is essential to keep particular data backed up to comply with government-regulated standards. Backup vendors are aware of these stringent regulations and have made their clouds satisfy the requirements of these verticals. The hybrid cloud platform lends itself well because if a local backup device is broken or crushed, all files are already located off-site and can be accessed quickly when required. This satisfies many demands for emergency plans in contingency scenarios.    

Also Read

Several Benefits Of Mobile App Development in UAE To Businesses

Final words:-

I think you have got all the benefits which I have discussed in the above section. These will helps you to understand that hybrid cloud backup is very important in today’s business scenario. We are at GreenEdge to provide the best hybrid cloud backup in Dubai.