فرق بین RAM و ROM چیه؟ (یه بار برای همیشه یاد بگیر 😄)
🔹 RAM یا حافظه موقت، دقیقاً مثل میز کارت می‌مونه. وقتی روشن می‌شی، همه چیز روش میاد. ولی به‌محض اینکه سیستم رو خاموش کنی، همه چی پاک میشه. این حافظه توی اجرای برنامه‌ها استفاده میشه (مثلاً مرورگر، بازی، فتوشاپ...).
🔹 ROM یا حافظه فقط‌خواندنی، مثل یک کشوی قفل‌شده‌س که اطلاعات مهم سیستم توشه. سیستم‌عامل و تنظیمات بوت داخل ROM ذخیره میشه. خاموش بشی هم پاک نمیشه.
🔍 نکته: وقتی کامپیوترت روشن میشه، اول از ROM شروع می‌کنه، بعد میره سراغ RAM تا بتونه کار کنه.
فرق بین RAM و ROM چیه؟ (یه بار برای همیشه یاد بگیر 😄)
🔹 RAM یا حافظه موقت، دقیقاً مثل میز کارت می‌مونه. وقتی روشن می‌شی، همه چیز روش میاد. ولی به‌محض اینکه سیستم رو خاموش کنی، همه چی پاک میشه. این حافظه توی اجرای برنامه‌ها استفاده میشه (مثلاً مرورگر، بازی، فتوشاپ...).
🔹 ROM یا حافظه فقط‌خواندنی، مثل یک کشوی قفل‌شده‌س که اطلاعات مهم سیستم توشه. سیستم‌عامل و تنظیمات بوت داخل ROM ذخیره میشه. خاموش بشی هم پاک نمیشه.
🔍 نکته: وقتی کامپیوترت روشن میشه، اول از ROM شروع می‌کنه، بعد میره سراغ RAM تا بتونه کار کنه.
“To the extent it is used I fear it’s often for illicit finance. It’s an extremely inefficient way of conducting transactions, and the amount of energy that’s consumed in processing those transactions is staggering,” the former Fed chairwoman said. Yellen’s comments have been cited as a reason for bitcoin’s recent losses. However, Yellen’s assessment of bitcoin as a inefficient medium of exchange is an important point and one that has already been raised in the past by bitcoin bulls. Using a volatile asset in exchange for goods and services makes little sense if the asset can tumble 10% in a day, or surge 80% over the course of a two months as bitcoin has done in 2021, critics argue. To put a finer point on it, over the past 12 months bitcoin has registered 8 corrections, defined as a decline from a recent peak of at least 10% but not more than 20%, and two bear markets, which are defined as falls of 20% or more, according to Dow Jones Market Data.
What Is Bitcoin?
Bitcoin is a decentralized digital currency that you can buy, sell and exchange directly, without an intermediary like a bank. Bitcoin’s creator, Satoshi Nakamoto, originally described the need for “an electronic payment system based on cryptographic proof instead of trust.” Each and every Bitcoin transaction that’s ever been made exists on a public ledger accessible to everyone, making transactions hard to reverse and difficult to fake. That’s by design: Core to their decentralized nature, Bitcoins aren’t backed by the government or any issuing institution, and there’s nothing to guarantee their value besides the proof baked in the heart of the system. “The reason why it’s worth money is simply because we, as people, decided it has value—same as gold,” says Anton Mozgovoy, co-founder & CEO of digital financial service company Holyheld.
