The Tool Desk
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What cloud computing means
NIST defines cloud computing as a way to provide convenient, on-demand network access to a shared pool of configurable computing resources—such as networks, servers, storage, applications, and services—that can be rapidly provisioned and released with minimal management effort or interaction with the provider. The definition comes from Peter Mell and Tim Grance’s NIST Special Publication 800-145, published in 2011.
In everyday terms, going to the cloud shifts some computing resources from equipment you operate yourself to services accessed over a network. The internet may be the route to a cloud service, but “cloud” does not simply mean “the internet”: it refers to how computing resources are pooled, made available, and managed.
Five characteristics of cloud computing
NIST’s definition describes cloud computing through five characteristics:
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- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
- On-demand self-service: A customer can provision resources when needed without requiring a person at the provider to handle every request.
- Broad network access: Services are available over a network and can be accessed by supported client devices.
- Resource pooling: A provider’s computing resources serve multiple customers, with resources assigned and reassigned as demand changes.
- Rapid elasticity: Resources can be scaled up or down quickly as needs change.
- Measured service: Resource use is monitored, controlled, and reported, providing visibility into consumption.
Service models: what the provider supplies
SaaS, PaaS, and IaaS describe different kinds of service offered to the customer. NIST treats them as service models, separate from the question of how cloud infrastructure is deployed or shared.
| Service model | What it provides | Typical customer focus |
|---|---|---|
| SaaS (software as a service) | A software application delivered as a service. | Using the application rather than installing and operating all of its underlying infrastructure. |
| PaaS (platform as a service) | A platform for developing, testing, deploying, or running applications. | Building and managing applications on the provided platform. |
| IaaS (infrastructure as a service) | Computing infrastructure, such as servers, storage, or networks. | Configuring and using infrastructure without owning the provider’s physical hardware. |
The exact division of responsibilities varies by service and provider; the model names identify broad categories, not a guarantee that every service includes the same features or management duties.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Deployment models: how infrastructure is organized or shared
Private, community, public, and hybrid cloud describe deployment models—not alternatives to SaaS, PaaS, and IaaS. They answer a different question: how the cloud infrastructure is organized or shared. NIST presents these categories in its SP 800-145 publication.
- Private cloud: Infrastructure for the exclusive use of one organization.
- Community cloud: Infrastructure shared by organizations with common concerns, such as mission, security requirements, policy, or compliance considerations.
- Public cloud: Infrastructure made available for open use by the general public.
- Hybrid cloud: Two or more distinct cloud infrastructures—private, community, or public—that remain separate but are connected to support data or application portability.
A service can therefore be described along both axes: for example, by its service model and by its deployment model. Neither axis alone determines which choice is best.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Why organizations go to the cloud—and what it does not guarantee
Cloud services can make computing capacity available on demand and reduce the need for some upfront investment in hardware. AWS describes cloud computing as on-demand delivery of computing power, databases, storage, applications, and other IT resources over the internet, with pay-as-you-go pricing; customers can provision resources as needed rather than make large upfront hardware investments. That describes AWS’s service and pricing approach, not a promise that every cloud workload will cost less.
Moving resources to a cloud service also does not automatically eliminate management responsibilities or guarantee better security or lower total cost. NIST’s Cloud Computing Synopsis and Recommendations (2012) addresses both potential benefits and open issues, and frames cloud adoption as a decision that requires evaluating opportunities and risks.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
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