No, the storage of the iPhone 12 cannot be expanded. The iPhone 12 comes with fixed storage options of 64GB, 128GB, and 256GB, and there is no option to add additional storage through external memory cards or other means. Users will need to choose the storage capacity that best suits their needs when purchasing the iPhone 12. **

A modular power supply is one where the cables can be detached from the unit, allowing for customization and easier cable management. A non-modular power supply has all cables permanently attached, which can lead to a messier build and potentially obstruct airflow. A semi-modular power supply falls in between, with some essential cables permanently attached and others that can be detached for flexibility. Each type has its own advantages and disadvantages depending on the user's needs and preferences. **

To sell a 12-year-old storage heater, you can start by cleaning it thoroughly to make it look presentable. Take clear photos of the heater from different angles and write a detailed description highlighting its features and any flaws. You can list it for sale on online marketplaces such as eBay, Craigslist, or Facebook Marketplace, or consider selling it to a local appliance store or through a garage sale. Be honest about the age of the heater and price it competitively to attract potential buyers. **

I'm sorry, but I cannot determine if the cool storage of electrical appliances is broken without more specific information. If you can provide more details about the specific appliance and the issue you are experiencing, I would be happy to try to help troubleshoot the problem. **

Modular power supplies are generally considered better than non-modular power supplies because they allow for more flexibility in cable management. With modular power supplies, you can attach only the cables you need, reducing clutter and improving airflow within the computer case. This can lead to better cooling and overall system performance. Additionally, modular power supplies make it easier to upgrade or replace cables, as you can simply detach and reattach them as needed. **

You can sell a 12-year-old night storage heater by first assessing its condition and functionality. Take clear photos of the heater from different angles and write a detailed description highlighting its features and any wear and tear. You can list it for sale on online marketplaces such as eBay, Craigslist, or Facebook Marketplace, or consider selling it to a local appliance store or through classified ads. Be transparent about the age and condition of the heater to attract potential buyers. **

Primary storage, also known as main memory, is the internal memory of a computer that is directly accessible by the CPU. It is used to store data and instructions that are currently being processed by the CPU. Secondary storage, on the other hand, refers to external storage devices such as hard drives, solid-state drives, and optical discs, which are used to store data for long-term use. Tertiary storage is a type of storage that is used for archival purposes and is typically slower and less accessible than primary and secondary storage. Examples of tertiary storage include magnetic tape and optical jukeboxes. **

Non-modular power supplies come with a fixed set of cables attached to the unit, which can lead to cable clutter and difficulty in managing excess cables. On the other hand, fully modular power supplies allow users to detach all cables from the unit, enabling them to only use the necessary cables for their specific setup. This results in a cleaner and more organized build, as well as easier cable management. **