HP 2648A, year 1978

By Xah Lee. Date: . Last updated: .

The HP 2640A is a block-mode “smart” and intelligent ASCII standard serial terminals produced by Hewlett-Packard using the Intel 8008 and 8080 microprocessors. Introduced in 1974-11.

HP 2648A is introduced in 1978.

First keyboard with PageUp PageDown keys. They are labeled as PREV PAGE NEXT PAGE. [see Keyboard Page Key]

HP 2648A keyboard 4Znjp
HP 2648A keyboard [image source [2018-06-12 [https://www.ebay.com/itm/273284114558]]]

The HP 2640A and other HP 264X models were block-mode “smart” and intelligent ASCII standard serial terminals produced by Hewlett-Packard using the Intel 8008 and 8080 microprocessors.

The HP 2640A[1] was introduced in November 1974 at a list price of US$3000.[2][3][4] Based on the Intel 8008 CPU, it had 8 KB of ROM firmware and came standard with 1 KB of RAM, expandable up to 8 KB (two 4 KB semiconductor RAM cards). In September 1975 Hewlett-Packard introduced the HP 2644A, which was an HP 2640A with mass storage (two mini-tape cartridges, 110 KB each), for US$5000.[5] HP followed up in 1976 with the 2640B, an updated, cost-reduced version of the 2640A with a list price of US$2600,[6] along with three international versions: the Cyrillic-oriented 2640C, the Swedish/Finnish-oriented 2640S, and the Danish/Norwegian-oriented 2640N.[7] All of these early members of the 2640 series had the relatively slow 8008 CPU running at 700 kHz, and they were thus limited to speeds of 2400 baud. The 2640A and 2644A were discontinued in February 1977,[8][9] but the 2640B remained in production until August 1981.[10]

[2022-01-04 https://en.wikipedia.org/wiki/HP_2640]

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Hewlett Packard Journal 1978-01

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