Representing Numbers and Letters with Binary: Crash Course Computer Science #4
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Date: 2022-04-04
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Comments and reviews: 10
Arsenal
Can someone please explain why at 6: 39 that represents the stated number? I only get the integer part but not how all those numbers represent the floating point. How is 10001000 the exponent? 10001000 is 136, its not 10 to the power of 3 or 1000. And how is the larger 23 bit number the significand? In what respect? People have to stop assuming when they teach. And what function in the computer does the multiplying of the exponent by the significand?
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Can someone please explain why at 6: 39 that represents the stated number? I only get the integer part but not how all those numbers represent the floating point. How is 10001000 the exponent? 10001000 is 136, its not 10 to the power of 3 or 1000. And how is the larger 23 bit number the significand? In what respect? People have to stop assuming when they teach. And what function in the computer does the multiplying of the exponent by the significand?
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Evan
I remember taking a beginner's computer science class back in 6th grade (1994) and dropped out because my teenage brain thought it was boring. I wish I had developed an interest back then now that I can objectively see the impact computer science has had in our collective society.
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I remember taking a beginner's computer science class back in 6th grade (1994) and dropped out because my teenage brain thought it was boring. I wish I had developed an interest back then now that I can objectively see the impact computer science has had in our collective society.
reply
Aee
Math is associated with social changes
In decimal
1 cent values 1cent, 1 bread values 10 cents, 1 cake values 10 breads, 1 pizza values 10 cakes and so on.
In binary
1cent values 1cent, 1 bread values 2 cents, 1 cake values 2 breads, 1 pizza values 2 cakes and so on.
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Math is associated with social changes
In decimal
1 cent values 1cent, 1 bread values 10 cents, 1 cake values 10 breads, 1 pizza values 10 cakes and so on.
In binary
1cent values 1cent, 1 bread values 2 cents, 1 cake values 2 breads, 1 pizza values 2 cakes and so on.
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papanino
Wow, this video was rubbish. You just basically rushed through hours of material, trying to speak as fast as possible to fit it all in a 10 minute video. Also -mojibekay-? You could have done a little effort to learn how to pronounce a single foreign word properly.
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Wow, this video was rubbish. You just basically rushed through hours of material, trying to speak as fast as possible to fit it all in a 10 minute video. Also -mojibekay-? You could have done a little effort to learn how to pronounce a single foreign word properly.
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Albin
1 KB (kilobytes) = 1000 bytes (10-3)
1KiB (kibibytes) = 1024 bytes (2-10)
Due to confusion computer architects have now defined a new term -kibibyte- to represent powers of 2, whereas the -kilobyte- represents powers of 10.
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1 KB (kilobytes) = 1000 bytes (10-3)
1KiB (kibibytes) = 1024 bytes (2-10)
Due to confusion computer architects have now defined a new term -kibibyte- to represent powers of 2, whereas the -kilobyte- represents powers of 10.
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Shweta
Population of our country reach 131 cr. And hence to get admission to commuter science in high colleges in our country is very hard. So our will not be able to admission to c. s, --------------
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Population of our country reach 131 cr. And hence to get admission to commuter science in high colleges in our country is very hard. So our will not be able to admission to c. s, --------------
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Lily
You ignited my interest in csci again! I was seriously consider dropping my csci intro class because my teacher is really disorganized and doesn't know how to teach. You've given me hope!
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You ignited my interest in csci again! I was seriously consider dropping my csci intro class because my teacher is really disorganized and doesn't know how to teach. You've given me hope!
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Aee
So this episode is talking about data type, right? Discuss about how to represent different types of data in binary, using different encoding formats to represent different types of data.
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So this episode is talking about data type, right? Discuss about how to represent different types of data in binary, using different encoding formats to represent different types of data.
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The asian keyboard shown in video is taiwanese computer, the mainland keyboard is same as english since we have already imported alphabet system to mandarin while taiwanese don't.
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The asian keyboard shown in video is taiwanese computer, the mainland keyboard is same as english since we have already imported alphabet system to mandarin while taiwanese don't.
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Alma
Awesome video, best I've seen so far. Question though, how does Unicode only use 16 bits if it includes every language ever used? Seems like a small number of bits to use?
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Awesome video, best I've seen so far. Question though, how does Unicode only use 16 bits if it includes every language ever used? Seems like a small number of bits to use?
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