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20 Cards in this Set
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 Back
How do you convert a binary number to a decimal number? 
Add up powers of 2 where 1 appears in the binary number 

How do you convert a decimal number to a binary number? 
Repeatedly divide the number by 2 and record the remainder 

Within base2, what does 0101+0011 = ? 
1000 

What is occurring during arithmetic overflow? 
The computer is trying to make a number that is too large, usually one represented by more than 4 bits. 

What is the highest decimal number that can be represented with four bits of binary? 
15 

What is the highest number in the base10 counting system? 
9 

What is the process of two's complement representation with regard to negative binary numbers? 
The change of a binary number to its negative complement by flipping every number/bit and adding 1. 

What two things require converting naturally analog representations to digital representations? 
Sound and images 

Define amplitude, period, and frequency. 
Amplitude: height of a wave at a moment in time Period: length of time until wave pattern repeats Frequency: number of periods per time unit 

What is the name of the action of converting something to a digital form? 
Digitize 

What is a recorded sound wave at a fixed, discrete interval? 
A sample 

What is the quality of a reproduced sound determined by? 
Sampling rate (number of samples per second) and bit depth (number of bits per sample) 

Of the two factors of quality, what are amplitude and wave form determined by? 
Amplitude: sampling rate Wave form: bit depth 

What is the name of the recording of color or intensity at fixed, discrete intervals in two dimensions? 
Image sampling 

What is the name of a stored picture as a 2Dgrid of pixel values? 
Raster graphics 

What are the two types of data compression? 
Lossless and lossy 

Why do computers use binary? 
Bistable systems are reliable. 

What object is characterized by solidstate switches, changing on or off when given power, small size, and the enabling of computers that work with gigabytes of data? 
Transistors 

What is the term for rules manipulating true/false values? 
Boolean logic 

What is a truth table? 
A table laying out each possible true/false input and output for Boolean expressions. 