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- From: s106275@cc.tut.fi (Anssi Saari)
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: Re: The maxtor 213 meg drive is NOT 213 megs!
- Message-ID: <1992Dec24.124622.23835@cc.tut.fi>
- Date: 24 Dec 92 12:46:22 GMT
- References: <lestrade.725128294@Ra.MsState.Edu> <s106275.725140761@ee.tut.fi> <1992Dec24.103209.21401@pasteur.Berkeley.EDU>
- Organization: Tampere University of Technology, Finland
- Lines: 25
-
-
- In <1992Dec24.103209.21401@pasteur.Berkeley.EDU> lew@cory.Berkeley.EDU (Kevin A. Lew) writes:
-
- >>>213,000,000 is not 213 megs (213 megs=213*1024*1024)
-
- >213,000,000 bytes *IS* 213 Megabytes. MS-DOS lists the free space
- >you have on your hard drive in bytes. Since MEGA = 10^6,
- >213 Megabytes is 213,000,000 bytes. In addition, 1 kilobyte is not
- >1,024 bytes. It is 1,000 bytes. I just studied this stuff in
- >a communication networks course and when I was studying for the CS GRE..
-
- >Hope this clarifies things..
-
- No, this is wrong. Here's a quote from the New Hacker's dictionary:
-
- "Confusing 1000 and 1024 (or other powers of 2 and 10 close in magnitude) - for
- example, describing a memory in units of 500K or 524K instead of 512K - is a
- sure sign of the marketroid."
-
- Of course, you ARE partly right, but not in this issue: one kilometer is 1000
- meters, one kilogram is 1000 grams, one megawatt is 1e6 watts etc etc, but
- this does not go for bytes. One kilobyte is 1024**1 == 2**10 bytes, one
- megabyte is 1024**2 == 2**20 == 1,048,576 bytes, one gigabyte is 1024**3 ==
- 1,073,741,824 bytes etc.
-
- Anssi
-