Decimal to Binary (WS 1) Flashcards

1
Q

The digits 0-9 are used by what type of number system?

A

The decimal/denary number system

Because it’s based on 10

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2
Q

What is binary?

A

It’s the smallest unit of measuring. It’s composed of 0’s and 1’s.

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3
Q

Why do computers use binary?

A

Because they have transistors (switches that are either on or off)

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4
Q

What is a number system?

A

It’s a system used for representing numbers

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5
Q

What’s a place value?

A

The value of a number based on its position

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6
Q

What’s a bit?

A

A binary digit with either a 0 or a 1.

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7
Q

What’s a byte?

A

A sequence of 8 bits with 256 possibilities.

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8
Q

What are the bases of denary and binary?

A

Denary -> 10
Binary -> 2

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9
Q

How do you convert from decimal to binary?

A

Keep dividing the number by 2 (without taking the decimal numbers), taking note of the remainders until the quotient is 0.

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10
Q

What’s the binary code of 123?

A

1101111(2)

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