Early Calc and Computers Selection:
|Product Number: 9821A|
|Division: Calculator Products|
|Original Price: $4975|
|Catalog Reference: 1975, page 534|
The 9821A was identical to the 9820A except it had a cassette tape mechanism for mass storage instead of a magnetic card reader.
The best resource for repairing these computers is Tony Duell's 98X0 repair manual which can be found here.
©2004 - 2017 WordSong Communications Pty. Ltd. All Rights Reserved.
The HP Computer Museum and Wordsong Communications Pty. Ltd. are not affiliated with HP Inc. or with Hewlett Packard Enterprise. Hewlett Packard and the HP logo are trademarks of HP Inc and Hewlett Packard Enterprise. This website is intended solely for research and education purposes.