1) Which base is binary? a) 2 b) 10 c) 5 2) Which base is decimal? a) 2 b) 10 c) 5 3) Binary is made up of? a) 0, 1 b) 1, 2, 3, 4, 5 c) 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 4) Base 10 is made up of? a) 0, 1 b) 1, 2, 3, 4, 5 c) 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 5) What number system do computers understand? a) Decimal b) Binary c) Hexadecimal 6) In electrical circuits an "OFF" switch is which binary number? a) 0 b) 1 7) In electrical circuits an "ON" switch is which binary number? a) 0 b) 1 8) Do computers understand the number 13? a) Yes b) No

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