Clock's non-volatile RAM ?
Posted: November 29th, 1984, 1:46 am
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From: [email protected]
Newsgroups: fa.info-mac
Subject: Clock's non-volatile RAM ?
Message-ID:
Date: Fri, 2-Nov-84 02:17:15 EST
Article-I.D.: uw-beave.2082
Posted: Fri Nov 2 02:17:15 1984
Date-Received: Sat, 3-Nov-84 01:46:55 EST
Sender: yenbut@uw-beave
Organization: U of Washington Computer Science
Lines: 26
From: puder%[email protected] (Karl Puder)
On page 356 of Cary Lu's "The Apple MAcintosh Book", the description of the
clock/calendar says:
The very low-power CMOS clock/calendar operates off the battery and
contains its own small separate memory in a custom chip. Besides
date and time, the memory has a few extra bytes; these could be used
to store a computer configuration -- possibly identifying the user
as a novice or expert. An application programmer could query this
information and take different strategies depending on the answer.
[1] Is this true?
[2] If so, how many bytes?
[3] What is stored there? (Is it the same memory as the 20 bytes described
by [email protected] in his/her message of approximately 21-jul-1984,
subject "RE: Rebooting options; what's kept around?")?
Karl.
----
USPS: Karl Puder, HL02-3/E09, DEC AITG, 77 Reed Road, Hudson, MA, 01749-2809
phone: (1)(617)568-4979 | ARPA: puder%[email protected]
DTN: 225-4979 | EasyNET: LOGIC::PUDER
UUCP: puder%[email protected]
UUCP: ...!{ucbvax,decvax,ihnp4}!decwrl!dec-rhea!dec-logic!puder
To: @M:INFOMAC
Posting-Version: version B 2.10 UW 5/3/83; site uw-beaver
Path: utzoo!watmath!clyde!burl!ulysses!mhuxj!houxm!hogpc!houti!ariel!vax135!cornell!uw-beaver!info-mac
From: [email protected]
Newsgroups: fa.info-mac
Subject: Clock's non-volatile RAM ?
Message-ID:
Date: Fri, 2-Nov-84 02:17:15 EST
Article-I.D.: uw-beave.2082
Posted: Fri Nov 2 02:17:15 1984
Date-Received: Sat, 3-Nov-84 01:46:55 EST
Sender: yenbut@uw-beave
Organization: U of Washington Computer Science
Lines: 26
From: puder%[email protected] (Karl Puder)
On page 356 of Cary Lu's "The Apple MAcintosh Book", the description of the
clock/calendar says:
The very low-power CMOS clock/calendar operates off the battery and
contains its own small separate memory in a custom chip. Besides
date and time, the memory has a few extra bytes; these could be used
to store a computer configuration -- possibly identifying the user
as a novice or expert. An application programmer could query this
information and take different strategies depending on the answer.
[1] Is this true?
[2] If so, how many bytes?
[3] What is stored there? (Is it the same memory as the 20 bytes described
by [email protected] in his/her message of approximately 21-jul-1984,
subject "RE: Rebooting options; what's kept around?")?
Karl.
----
USPS: Karl Puder, HL02-3/E09, DEC AITG, 77 Reed Road, Hudson, MA, 01749-2809
phone: (1)(617)568-4979 | ARPA: puder%[email protected]
DTN: 225-4979 | EasyNET: LOGIC::PUDER
UUCP: puder%[email protected]
UUCP: ...!{ucbvax,decvax,ihnp4}!decwrl!dec-rhea!dec-logic!puder
To: @M:INFOMAC