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Questions tagged [hp]

For questions regarding products of Hewlett Packard.

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Sources for HP's A Graphics Language?

I'm poking about in the usual places, but not having any luck, does anyone have any good introductory information for HP's AGL, "A Graphics Language"?
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Instruction set support for multiplication with a constant

Before integer multipliers in silicon, several cpus had some support for multiplication. For instance SPARCv7 has the MULScc multiply-step instruction (several other cpus also have this). As far as ...
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What was the value of the HP/1000 repeated indirection capability?

The HP/1000 was considered like a 16-bit "expansion" of the 12-bit DEC PDP-8.  Its addressing mode for loads and stores similarly used pages, base page and current page, and allowed for ...
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Did Hewlett Packard really allow the use of the HP48 ROMs in emulators?

On the FAQ of the emu48 software, a famous emulator for HP38/39/40/48/49 calculators (http://hp.giesselink.com/emu48faq.htm#ROM), we can find the following assertion: In general all HP-ROM files ...
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Determine Character Encoding used on HP 9000 Model 310 running BASIC 5.1

With the help of this community, I was able to copy and emulate a HP9133 HD using Hpdir and Hpdrive. Now, I want to edit, or at the bare minimum, read the programs on the HD. I have extracted the ...
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2answers
217 views

Getting a disk image off of a HP 9133 drive

I have a HP 9133 combo disk drive connected to an HP 9000 model 310 computer running Basic 4.0. This setup is used to control a few machines, and does not have a floppy inserted. The hard drive is ...
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3answers
315 views

Copying disk image from HP 9122D drive

I have a HP 9122D (EDIT: its actually a 9133) combo disk drive connected to an HP 9000 model 310 computer running Basic 4.0. This setup is used to control a few machines. The hard drive is getting ...
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2answers
858 views

What CPU did the HP85 have?

The HP 85, the portable scientific computer from Hewlett Packard in the 1970s, didn't use an off-the-shelf CPU like a Z80 or 8088. Instead, HP designed a custom CPU and used that. Was this CPU used ...
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How to access old laptop IDE hard drive

I have an old IDE hard drive from a Windows 98 HP computer. It has some data on it but I do not know how to access it.