HP 250

HP 250
	USD
Discontinued	1st Jan 1986
Units sold	7000
Operating system	HP BASIC
Predecessor	HP 9835
Successor	HP 260

The HP 250 was a

database management. It was produced by the General Systems Division (GSD), but was a major repackaging of desktop workstation HP 9835 from the HP 9800 series

which had been sold in small business configurations. The HP 9835's processor was initially used in the first HP 250s.

The HP 250 borrowed the embedded keyboard design from the

screen labeled function keys buttons physically placed just below on-screen labels (a configuration now used in ATMs and gas pumps

) built into a large desk design.

Though the HP 250 had a different processor and operating system, it used similar interface cards to the HP 300, and then later also the HP 3000 models 30, 33, 40, 42, 44, and 48: HP-IB channel (GIC), Network, and serial (MUX) cards. Usually the HP250 was a small HP-IB single channel system (limited to seven HP-IB devices per GIC at a less than 1 MHz bandwidth).

Initially the HP 250 was like the HP300 as a single user, floppy based computer system. Later a multi-user ability was added, and the HP300's embedded

matrix printers

. This gave some business-growth scale-ability to the HP250 product line.

The HP 250 was advertised in 1978 and was promoted more in Europe as an easy-to-use, small space, low cost business system, and thus sold better in Europe. The next-gen HP 250 was the HP 260 which lost the table, embedded keyboard, and

CRT

for a small stand-alone box.

HP systems moved away from all-in-one table top designs to having the system in a remote secure location, and remotely connecting user's

network cards

to PCs).

References

USASCII while codes 128 through 255 access the European characters. It IS Important to understand the differences between the two techniques and to know which technique IS supported on a given system. The HP 250 and HP 300
support the 8-bit code technique, consequently, 2631A option 009 must be ordered to provide local language printing on these two systems. All other HP computer systems and the 264X terminals support the 7-bit code, shift-in/shift-out method.

External links

Ed Thelen's Computer History Museum Visible Storage page

"misc" (PDF). Hewlett-Packard Journal. 30 (4). Hewlett-Packard. April 1979. Archived (PDF) from the original on 2016-08-17. Retrieved 2016-08-17.

Stan Sieler's HP250 page

HP Museum site

Retro Computer museum, Zatec, Czech Republic video

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[Davis_1979-1] USASCII while codes 128 through 255 access the European characters. It IS Important to understand the differences between the two techniques and to know which technique IS supported on a given system. The HP 250 and HP 300
support the 8-bit code technique, consequently, 2631A option 009 must be ordered to provide local language printing on these two systems. All other HP computer systems and the 264X terminals support the 7-bit code, shift-in/shift-out method.

[1]

See also

References

External links