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- Newsgroups: comp.sys.hp48
- Path: sparky!uunet!spool.mu.edu!umn.edu!unet.umn.edu!fin
- From: fin@unet.umn.edu (Craig A. Finseth)
- Subject: Re: Difference between 28c and 28s???????
- Message-ID: <1992Dec21.145603.19226@news2.cis.umn.edu>
- Sender: news@news2.cis.umn.edu (Usenet News Administration)
- Nntp-Posting-Host: norge.unet.umn.edu
- Organization: University of Minnesota, Networking Services.
- References: <BzF01J.7Mv@ulowell.ulowell.edu> <1992Dec18.190602.18069@gdwest.gd.com>
- Date: Mon, 21 Dec 1992 14:56:03 GMT
- Lines: 77
-
- In article <1992Dec18.190602.18069@gdwest.gd.com>, luse@gdwest.gd.com (Stephen A. Luse) writes:
- |> In article <BzF01J.7Mv@ulowell.ulowell.edu> gvahe@cs.ulowell.edu (Gerry Vahe) writes:
- |> >Can someone out there please tell me the difference between a 28c and a 28s?
- |> >I am interested in buying a used calculator and I need the differeces.
- |> >thanks a lot.
-
- From the HPDATAbase:
-
- Firsts: graphics objects, directories for
- user variables
-
- Memory:
- Flags: 46 set by GETI and PUTI if they wrap
- 47 double spaced printing
- User-RAM-Bytes: 32,400
- Total-RAM-Bytes: 32K (vs. 2K)
- ROM-Bytes: 128K (vs. 64K)
-
- Somewhat different key arrangement.
-
- Programmable-Operations::
-
- ->LCD put grob into LCD
- c speed of light constant
- COMB combinations
- CRDIR create directory
- DGTIZ activate interactive plot mode
- HOME move to home directory
- LCD-> return LCD as a grob
- MENU select a built-in menu
- PATH returns current path
- PERM compute permutations
- POS less restrictive definition
- VARS return list of variables
-
- Non-Programmable-Operations::
-
- no +CMD
- no +LAST
- no +ML
- no +UND
- no -CMD
- no -LAST
- no -ML
- no -UND
- CMD enable/disable LAST CMD mode
- COMPLX bring up menu
- CONTRL bring up menu
- CUSTOM custom menu
- MENUS toggles shifted and unshifted actions of A-R keys
- ML toggles multi-line display mode
- ON + <- + ENTER, then S puts the machine into COMA mode (loses stack
- and halts timer, does not destroy memory)
- ON + L print screen
- ON + NEXT start keyboard test
- no ON + v
- no RDX.
- RDX, toggle radix
- no SCAN
- no STOP
- UNDO toggle undo saving
- \Ga toggles entry mode from immediate to alpha to algebraic
- shift \Ga toggles menu lock
-
- Somewhat different menus.
-
- Memory is now from an industry-standard chip instead of a -71B-type
- chip. A "Power Lost" message has been added. The battery compartment
- is lined with foam. The display has non-glare glass. One-key
- operators are now entered into programs with spaces around them. The
- definitions of some units have been adjusted. Program and variable
- printing has been cleaned up and improved.
-
- Craig A. Finseth Craig.A.Finseth-1@umn.edu
- 1343 Lafond fin@unet.umn.edu
- St Paul MN 55104-2437 Craig.Finseth@mr.net
- USA +1 612 644 4027 member, LPF
-