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What's the equivalent of 32KB?

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What's the equivalent of 32KB? was created by dmcdona

An odd question, I know...

What is 32KB worth these days? Can someone put it in terms of seconds of high quality audio, numbers of alphanumerics or pages of a typical document? Or another equally simple analogy? (seconds worth of a Skype call?)

Cheers
Dave
15 years 3 months ago #53673

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Replied by Seanie_Morris on topic Re: What's the equivalent of 32KB?

This is gonna be a good one... why do you ask Dave?

As you know, there are 8 bits to a byte. 'B' = bytes, 'b' = bits. Your 32kB = 256kb.

So, using an audio analogy, for a standard audio file played at 128kbps (the minimum 'apparent' CD quality - still sounds bad imo for my line of work), thats 2 seconds worth of audio.

As for a Skype call, if you're upload speed by your ISP is e.g. connected at 256kbps, then you'd barely have a two word phrase (bugger off!).

Seanie.
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15 years 3 months ago #53677

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Replied by voyager on topic Re: What's the equivalent of 32KB?

A few sentences in Word.
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15 years 3 months ago #53678

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Replied by dave_lillis on topic Re: What's the equivalent of 32KB?

A few seconds of mp3, a small notepad document...
can I ask why you are worried about such a small file size such as 32KB
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15 years 3 months ago #53681

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Replied by darragh on topic Re: What's the equivalent of 32KB?

32Kbytes is 32 * 1024 * characters (Characters in the Ascii standard are representable as a byte )
So that is 32768 characters and given that most lines of text are about 80 characters, that represents 410 lines of text.
Walter Scott Houston's book Deep Sky Wonders has approximately 44 lines per page, so 32 Kbytes would present about 9 pages of text in his book

Typical high quality audio is encoded at 256Kbps or 320Kbps, so you would get 1 second or less of high quality audio

Darragh
15 years 3 months ago #53687

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Replied by voyager on topic Re: What's the equivalent of 32KB?

32Kbytes is 32 * 1024 * characters (Characters in the Ascii standard are representable as a byte )
So that is 32768 characters and given that most lines of text are about 80 characters, that represents 410 lines of text.
Walter Scott Houston's book Deep Sky Wonders has approximately 44 lines per page, so 32 Kbytes would present about 9 pages of text in his book


Except that UTF-8 and just about every modern character encoding scheme uses two bytes rather than 1 .... so half that :)
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15 years 3 months ago #53688

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Replied by darragh on topic Re: What's the equivalent of 32KB?

32Kbytes is 32 * 1024 * characters (Characters in the Ascii standard are representable as a byte )
So that is 32768 characters and given that most lines of text are about 80 characters, that represents 410 lines of text.
Walter Scott Houston's book Deep Sky Wonders has approximately 44 lines per page, so 32 Kbytes would present about 9 pages of text in his book


Except that UTF-8 and just about every modern character encoding scheme uses two bytes rather than 1 .... so half that :)

Most modern tools like Java will use single byte representation where possible.
Go check it out with this sample:
[code:1]
Byte byteStr[] = "a".getBytes();
System.out.println("Length of byte representation: "+byteStr.length);
[/code:1]
15 years 3 months ago #53690

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Replied by voyager on topic Re: What's the equivalent of 32KB?

32Kbytes is 32 * 1024 * characters (Characters in the Ascii standard are representable as a byte )
So that is 32768 characters and given that most lines of text are about 80 characters, that represents 410 lines of text.
Walter Scott Houston's book Deep Sky Wonders has approximately 44 lines per page, so 32 Kbytes would present about 9 pages of text in his book


Except that UTF-8 and just about every modern character encoding scheme uses two bytes rather than 1 .... so half that :)

Most modern tools like Java will use single byte representation where possible.
Go check it out with this sample:
[code:1]
Byte byteStr[] = "a".getBytes();
System.out.println("Length of byte representation: "+byteStr.length);
[/code:1]


I stand corrected .... unless you're writing in Chinese or some such.

Bart.
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15 years 3 months ago #53692

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Replied by pmgisme on topic Re: What's the equivalent of 32KB?

The vast bulk of the frequencies in the spoken word occur below 2.5KHz.

You don't need Hi-Fi frequencies above 10KHz in any spoken telephone conversation to have a perfectly normal conversation.

Unless you usually shriek like an alto-soprano.

Or sing songs over the phone.

Peter.
15 years 3 months ago #53701

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Replied by dmcdona on topic Re: What's the equivalent of 32KB?

can I ask why you are worried about such a small file size such as 32KB


32KB was the extent of the memory in the Apollo Guidance and Navigation system that landed Man on the moon and brought him back home.

So, one second of high quality audio, two words on Skype or a few pages of text ...

Puts it into persepective...
15 years 3 months ago #53729

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Replied by pmgisme on topic Re: What's the equivalent of 32KB?

The Apollo software was hyper efficient.

It had to be.

Modern software writes 5000 lines of code when one efficient line would do.

Intel's mantra is:

"Whatever we build, Microsoft will drag it to its knees."

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Replied by voyager on topic Re: What's the equivalent of 32KB?

The Apollo software was hyper efficient.

It had to be.

Modern software writes 5000 lines of code when one efficient line would do.

Intel's mantra is:

"Whatever we build, Microsoft will drag it to its knees."

Peter.


And that's why smart people user Macs :wink:
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Replied by pmgisme on topic Re: What's the equivalent of 32KB?

P.S.

The "C" language telly you that minus 5000 volts is a "lesser quantity" than plus 1 volt.

In other words your little AA battery is more dangerous than a rail with minus 5000 volts on it.

Very smart software.

Peter.
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Replied by voyager on topic Re: What's the equivalent of 32KB?

P.S.

The "C" language telly you that minus 5000 volts is a "lesser quantity" than plus 1 volt.

In other words your little AA battery is more dangerous than a rail with minus 5000 volts on it.

Very smart software.

Peter.


The C language says nothing about voltage. It is a general programming language that only thinks exactly what it's told by the programmer. If it was miss-programmed that have nothing to do with the C language.

Bart.
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15 years 3 months ago #53733

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Replied by albertw on topic Re: What's the equivalent of 32KB?

can I ask why you are worried about such a small file size such as 32KB


32KB was the extent of the memory in the Apollo Guidance and Navigation system that landed Man on the moon and brought him back home.

So, one second of high quality audio, two words on Skype or a few pages of text ...

Puts it into persepective...


Yep, but that was just its data storage. The system was on hardware and ROM.

When you go back to the early 80's then the ZX Spectrum had 48kb of memory and was capable of keeping us all amused for hours of computer games.

In the context of the apollo system it would have been mainly storing numbers for computations, 32000+ digits give you a lot of room to work with. Especially since you only store what you need.

Even today you won't use that much memory with many programs. The operating system, the graphical interface etc. etc. will eat it up. I'd imagine that none of the compiled programs I did in college would have used more than 32k in running memory.
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15 years 3 months ago #53738

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Replied by dmcdona on topic Re: What's the equivalent of 32KB?

Yep, but that was just its data storage. The system was on hardware and ROM.

When you go back to the early 80's then the ZX Spectrum had 48kb of memory and was capable of keeping us all amused for hours of computer games.

In the context of the apollo system it would have been mainly storing numbers for computations, 32000+ digits give you a lot of room to work with. Especially since you only store what you need.

Even today you won't use that much memory with many programs. The operating system, the graphical interface etc. etc. will eat it up. I'd imagine that none of the compiled programs I did in college would have used more than 32k in running memory.


Errm, so what'll I tell the listeners on Fanning tomorrow :?
15 years 3 months ago #53739

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Replied by albertw on topic Re: What's the equivalent of 32KB?

Errm, so what'll I tell the listeners on Fanning tomorrow :?


I'd go with the couple of seconds of mp3 then!

That's how much memory it had, and that's what people will understand - you don't need to give a computer science lecture!
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15 years 3 months ago #53741

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Replied by dmcdona on topic Re: What's the equivalent of 32KB?

you don't need to give a computer science lecture!


Dang - I was going to quote you verbatim... :wink:
15 years 3 months ago #53742

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Replied by jhoare on topic Re: What's the equivalent of 32KB?

32Kbytes is 32 * 1024 * characters (Characters in the Ascii standard are representable as a byte )
So that is 32768 characters and given that most lines of text are about 80 characters, that represents 410 lines of text.
Walter Scott Houston's book Deep Sky Wonders has approximately 44 lines per page, so 32 Kbytes would present about 9 pages of text in his book


Except that UTF-8 and just about every modern character encoding scheme uses two bytes rather than 1 .... so half that :)

Most modern tools like Java will use single byte representation where possible.
Go check it out with this sample:
[code:1]
Byte byteStr[] = "a".getBytes();
System.out.println("Length of byte representation: "+byteStr.length);
[/code:1]


Modern? It was released in 1995, 4 years after its initial conception. That's positively ancient by IT standards :)

I've been complaining about 'Java performance' for almost as long, but I must confess the truth - what I've really been complaining about is probably the poor quality of code in the Java apps I've had to use. Java's biggest weakness is that so many Java 'programmers' learned the craft in certification sweatshops and have no real appreciation of the need for explicit memory management, overflow checks, explicit size limits, and other useful features that are included in good code. I gave up programming before Java and never even learned it, yet even I have immediately spotted flaws in some of the hokiest code examples I've been shown.
John

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15 years 3 months ago #53754

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Replied by DaveGrennan on topic Re: What's the equivalent of 32KB?

When you go back to the early 80's then the ZX Spectrum had 48kb of memory and was capable of keeping us all amused for hours of computer games.


Ha pure luxury! I used to dream of 48K back in the days when I used a 1K Sinclair ZX81! Boy did you learn to write tight code back in the good ol days.

Wasn't it Bill Gates who once famously said, '640K ought to be enough for anyone'?

:)
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15 years 3 months ago #53765

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Replied by voyager on topic Re: What's the equivalent of 32KB?

Wasn't it Bill Gates who once famously said, '640K ought to be enough for anyone'?

:)


It was indeed ... makes the big ball of bloat that is Vista even funnier :)

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15 years 3 months ago #53766

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Replied by jhoare on topic Re: What's the equivalent of 32KB?

That's nothing compared to the IBM President who thought that the world might need 3(?) computers...
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Replied by voyager on topic Re: What's the equivalent of 32KB?

That's nothing compared to the IBM President who thought that the world might need 3(?) computers...


The quote is "maybe 5". Yea, pretty short-sighted :)
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15 years 3 months ago #53778

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Replied by Seanie_Morris on topic Re: What's the equivalent of 32KB?

A world market for maybe 5 computers, 640k base should be enough for anyone... and today, my keyboard driver alone is bigger in 'bits' that the whole drive console of the Apollo 11 Lunar Command Module! :D
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