From the course: CompTIA Tech+ (FC0-U71) Cert Prep

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Decimal, hexadecimal, and octal

Decimal, hexadecimal, and octal

- Earlier, we discussed the notational system known as binary. Let's look at some additional notational systems that are used in computing and programming. We're going to be discussing decimal, hexadecimal and octal notations. It is important to understand there are many ways to interact with a computer through different notational calculations. Binary is the only true way to command the computer, but not everything can be written in binary. It just isn't practical. We aren't going to be diving into the math too much. This isn't a math lesson. However, it is important to understand these notational systems. Let's start by discussing the decimal system. This is the number system you're likely most familiar with. It's based on 10 digits from 0 to 9, which is why it's called base-10. That's something you should remember for the exam. Understanding decimal is important because it contrasts with base-2, or binary, which only uses two digits, 0 and a 1. 0 meaning off, 1 meaning on. Very…

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