Computer Systems - Accessories

1000, L/A Series Selection:

1) 12008A PROM Module (1980)
2) 12009A HP-IB Interface (1980)
3) 12021A Flexible Disc Interface (1980)
4) 12006 Parallel Interface (1980)
5) 12013A Battery Backup (1980)
6) 12010A Breadboard Interface (1980)
7) 12005 Serial Interface (1980)
8) 12044A HDLC Direct Connect Interface (1980)
9) 12012A Jumper Card (1981)
10) GRAPHICS/1000-II DGL/AGP (1981)
11) 12063A Digital I/O Card (1982)
12) 12103B 256 KB RAM A700 (1982)
13) 92077A RTE-A Manuals 1980s (1982)
14) 12157A Battery Backup (1982)
15) 12158A Sine Wave Card (1982)
16) 12103C 512 KB Memory A-Series (1982)
17) 12103D 1 MB Memory for A-Series (1982)
18) 12102-60007 512 KB Memory Controller (1982)
19) A-Series Software (1982)
20) Contributed Software Library (1982)
21) 12154A Battery Backup (1983)
22) 37222A Modem (1983)
23) 12040D MUX Interface (1983)
24) 12022A Internal Disc Controller (1984)
25) 93695V 8-Channel MUX (1984)
26) 12103K 2 MB Memory A-Series (1984)
27) 12065A Color Video Interface (1984)
28) 12220A 768KB RAM for A900 (1984)
29) 12221A 3 MB RAM A900 (1984)
30) 12025 I/O Extender (1986)
31) 12076A LAN/1000 Link 802.3 (1986)
32) NS/1000 Software (1986)
33) 4MB RAM for A-Series (1986)
34) 12221B 8 MB RAM A990 (1990)
35) 12016A SCSI Interface (1990)
36) 92077A RTE-A Manuals 1990s (1992)


HP introduced its low cost 1000 Series processor in 1979, the L-Series. Like the 21-MX computers, the L-Series was driven by the RTE operating system (RTE-L). The L-Series represented a significant departure in hardware design for HP 1000 computers. The L-Series was based on HP's new LSI CMOS/SOS (Silicon on Saphire) processors. This processor had no Dynamic Mapping System (DMS). The CPU included an SOS processor as did each interface board. The processor residing on the interface boards gave those boards full access to computer memory, relieving the main CPU of IO control operations. This design provided the L-Series with much faster performance and throughput than the 21-MX computers. The interface boards for the L-Series were not backward compatible with the 21-MX or early 2000 computers.

The A-Series was introduced in 1982 to replace the L-Series. The A-Series was based on new, high-performance processors with a speed of over 1 million instructions per second. The A-Series ran the RTE-A operating system. These computers came in many models beginning with the A600 and A700. The A990 was introduced in 1990 and was the last of the HP 1000 computers.

These products were developed and manufactured at HP's Data Systems Division.

The museum has a collection of software available for download for these computers. Click here for the software listing.

The Washington State-based company Strobe makes new classic HP-1000 (21-MX and A-Series) hardware as well as DEC-compatible hardware.

Click here to read Rik Bos' instructions on how to log in to an RTE-A hard disc when you don't know the password (file size 1.5 Mb).

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