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- From: akcs.joehorn@hpcvbbs.cv.hp.com (Joseph K. Horn)
- Newsgroups: comp.sys.hp48
- Subject: Re: Re: Re: Non HP RAM Cards?!? Not for $40 for 32K, I hope...
- Message-ID: <2b5b83ba.2378.5comp.sys.hp48.1@hpcvbbs.cv.hp.com>
- Date: 19 Jan 93 04:40:02 GMT
- References: <19279.2b261442@ecs.umass.edu> <2b59c983.2378.4comp.sys.hp48.1@hpcv
- Lines: 13
-
- akcs.dmankin@hpcvbbs.cv.hp.com [David Mankin] writes:
-
- > Can the HP-48 use RAM cards bigger than 128K????
-
- TDS makes special 256K and 512K RAM cards for the HP48... but don't be
- fooled into thinking that they give you that much memory all at once.
- They are "bank switched" cards. Only one "bank" of 128K is available at
- a time, and the other 128K banks are switched out and are totally
- inaccessible. The *ONLY* difference between a 512K TDS RAM card and four
- separate 128K RAM cards is that the TDS card can do the "card swapping"
- via software commands so that you don't have to physically swap cards.
-
- -jkh-
-