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🔊مینی چالش برقی!⚡️ 🦾مسابقه ای کوچک به مناسبت روز مهندس!👩‍💻 به مدت یک هفته از ۸ تا ۱۵ اسفند تا هر شب یک سوال برقی! 💥به قید قرعه به ۳ نفر برگزیده جایزه اهدا میگردد🎁 توجه داشته باشید برای جواب سوال هر شب تنها ۲۴ ساعت مهلت پاسخ دارید‼️ -.-.-.-.-.-.-.-.-.…
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سوال⁉️ در یک مدار دیجیتال، یک گیت NAND و یک گیت NOR ورودی‌های یکسانی دارند. کدام گزینه حتماً نادرست است؟
Final Results
18%
الف) اگر همه ورودی‌ها ۱ باشند، خروجی NAND و NOR برابرند.
18%
ب) اگر تمام ورودی‌ها ۰ باشند، خروجی‌های NAND و NOR برابرند.
41%
ج) برای هر ترکیب ورودی، مجموع خروجی‌های NAND و NOR برابر ۱ است.
24%
د) اگر یک ورودی تغییر کند، خروجی حداقل یکی از گیت‌ها تغییر می‌کند.
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Start with a fresh view of investing strategy. The combination of risks and fads this quarter looks to be topping. That means the future is ready to move in.Likely, there will not be a wholesale shift. Company actions will aim to benefit from economic growth, inflationary pressures and a return of market-determined interest rates. In turn, all of that should drive the stock market and investment returns higher.

How Does Bitcoin Work?

Bitcoin is built on a distributed digital record called a blockchain. As the name implies, blockchain is a linked body of data, made up of units called blocks that contain information about each and every transaction, including date and time, total value, buyer and seller, and a unique identifying code for each exchange. Entries are strung together in chronological order, creating a digital chain of blocks. “Once a block is added to the blockchain, it becomes accessible to anyone who wishes to view it, acting as a public ledger of cryptocurrency transactions,” says Stacey Harris, consultant for Pelicoin, a network of cryptocurrency ATMs. Blockchain is decentralized, which means it’s not controlled by any one organization. “It’s like a Google Doc that anyone can work on,” says Buchi Okoro, CEO and co-founder of African cryptocurrency exchange Quidax. “Nobody owns it, but anyone who has a link can contribute to it. And as different people update it, your copy also gets updated.”

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