中国移动香港（CMHK）宣布全面启动5G SA服务
中国移动香港（CMHK）于2025年3月21日宣布，将于2025年4月1日起在全网正式商用5G SA（5G独立组网）服务。相比目前在香港提供的5G NSA（5G非独立组网）和4G LTE网络，新的5G SA网络将在网速、时延以及安全性方面实现显著提升。
值得注意的是，在此之前，CMHK已于2024年11月7日率先推出5G SA国际漫游服务，成为中国香港首家提供5G SA中国内地漫游的流动网络运营商。iPhone用户暂不支持SA漫游，需等系统更新。
通讯家园 | CMHK
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BY 科技圈🎗在花频道📮
Like a stock, you can buy and hold Bitcoin as an investment. You can even now do so in special retirement accounts called Bitcoin IRAs. No matter where you choose to hold your Bitcoin, people’s philosophies on how to invest it vary: Some buy and hold long term, some buy and aim to sell after a price rally, and others bet on its price decreasing. Bitcoin’s price over time has experienced big price swings, going as low as $5,165 and as high as $28,990 in 2020 alone. “I think in some places, people might be using Bitcoin to pay for things, but the truth is that it’s an asset that looks like it’s going to be increasing in value relatively quickly for some time,” Marquez says. “So why would you sell something that’s going to be worth so much more next year than it is today? The majority of people that hold it are long-term investors.”
Most people buy Bitcoin via exchanges, such as Coinbase. Exchanges allow you to buy, sell and hold cryptocurrency, and setting up an account is similar to opening a brokerage account—you’ll need to verify your identity and provide some kind of funding source, such as a bank account or debit card. Major exchanges include Coinbase, Kraken, and Gemini. You can also buy Bitcoin at a broker like Robinhood. Regardless of where you buy your Bitcoin, you’ll need a digital wallet in which to store it. This might be what’s called a hot wallet or a cold wallet. A hot wallet (also called an online wallet) is stored by an exchange or a provider in the cloud. Providers of online wallets include Exodus, Electrum and Mycelium. A cold wallet (or mobile wallet) is an offline device used to store Bitcoin and is not connected to the Internet. Some mobile wallet options include Trezor and Ledger.
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