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31 Cards in this Set
- Front
- Back
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binary 0 is what voltage?
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0 volts, or off
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Binary 1 is what voltage?
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5 volts or on
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what is a bit?
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one binary place equal to 0 or 1
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What is a byte?
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A byte is 8 bits
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Any number raised to the power of 0 equals what?
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1
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Any number raised to the power of 1 equals what?
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itself.
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Each bit in a binary number is raised to what power?
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each bit is raised to a power 1 greater than the previous bit, starting at 0 right to left.
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the highest power in a byte is what number?
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7
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In C, a byte is called what?
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A Character or 'char'
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The left most bit in a binary number is called...
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Most significant bit or msb
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The right most bit in a binary number is...
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Least significant bit or lsb
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How is the weight of a binary bit calculated?
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By raising the bit to the power determined by its position.
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What's is the weight of the msb of a byte?
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2^7 or 128
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This byte, 00010000 equals what value?
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16
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The values of each bit in a byte are...
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1,2,4,8,16,32,64,128
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Hexadecimal notation is known as...
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HEX
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HEX is base what?
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16
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Binary is base what?
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2
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4 bits is called what?
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A nibble
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HEX 0-9 represents what values?
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0,1,2,3,4,5,6,7,8,9
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HEX A-F represents what values?
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10,11,12,13,14,15
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A word is how many bits?
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16
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a word has how many nibbles?
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4 nibbles, each with 4 bits
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In C, a word is called what?
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An integer or int
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What is the difference between a signed and unsigned int?
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signed are - or +, unsigned are only +
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unsigned integer have a minimum and maximum value of what?
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0 - 65535
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Signed into have a minimum and maximum value of what?
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-32,768 to -1 and 0 to +32,768
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A long word is how many bytes?
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4 bytes, each 8 bits
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What is the formula for finding the signed value of an unsigned int greater than 32768?
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-1 * (65535 - int)
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What is the minimum and maximum unsigned values of a long word?
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0 - 4,294,967,295
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What is the minimum and maximum value of a signed long word?
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-1 to -2,147,483,647 and 0 to 2,147,483,647
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