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- From: stevev@miser.uoregon.edu (Steve VanDevender)
- Subject: Re: Serial No.
- In-Reply-To: Michael_Hoppe@k2.maus.de's message of Wed, 22 Jul 92 06:56:00 GMT
- Message-ID: <STEVEV.92Jul23183245@miser.uoregon.edu>
- Sender: news@nntp.uoregon.edu
- Organization: University of Oregon Chemistry Stores
- References: <A44126@K2.maus.de>
- Date: 23 Jul 92 18:32:45
- Lines: 25
-
- In article <A44126@K2.maus.de> Michael_Hoppe@k2.maus.de (Michael
- Hoppe) writes:
-
- Does each HP48 own an individual serial number, which can be
- recalled via an ON-D keystroke?
-
- It's even easier than that. Just look on the back above the
- battery compartment; it's permanently displayed in a little
- window, whether the calculator is on or off--you can even tell
- the serial number if the calculator has no batteries or has
- suffered total electronics failure!
-
- The problem with giving each calculator an individual
- electronically retrievable serial number is that you have to make
- one component that is much harder to mass-produce. It's common
- in software where your software duplication program can embed a
- serial number in the easily writable software medium; it's much
- harder to burn new ROMs for each calculator that contain the
- serial number. And if the calculator does go bits-up, you can't
- get at that serial number any more.
- --
- Steve VanDevender stevev@greylady.uoregon.edu
- "Bipedalism--an unrecognized disease affecting over 99% of the population.
- Symptoms include lack of traffic sense, slow rate of travel, and the
- classic, easily recognized behavior known as walking."
-