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Hewlett-Packard HP-97 (Boxed) – Replacement Drive wheel & Battery

April 26th, 2015 No comments
Hewlett-Packard HP-97

Gallery:

The HP-67 was a magnetic card-programmable handheld calculator, introduced by Hewlett-Packard in 1976 at an MSRP of $450. A desktop version with built-in thermal printer was sold as the HP-97 at a price of $750.

Marketed as improved successors to the HP-65, the HP-67/97 were based on the technology of the “20-series” of calculators (HP-25, HP-19C etc.) introduced a year earlier. The two models are functionally equivalent, and programs on magnetic cards can be interchanged between them.

Features:

The 67/97 provide a complete set of scientific, statistical and engineering operations, including trigonometrical, logarithmic and exponential functions, coordinate conversions, average/deviation etc.

The HP-67/97 series featured a program memory of 224 eight-bit words. The two extra bits per word compared to the HP-65′s six allowed the designers to store any program instruction in a single memory cell (“fully merged keycodes”) even if it required multiple keystrokes to enter (see image). Programs could include 20 labels, subroutines (3 levels deep), four flag registers, 8 comparison functions, and extended index and loop control functions.

At 15 digits, the display was wider than those of the predecessor models, although the decimal point was displayed on its own digit position. The HP-67 keys carry up to four functions each, accessed through “f”, “g” and “h” prefix keys (gold, blue and black labels, respectively). The model 97 had more (and larger) keys, therefore only two functions were assigned to each key. When interchanging magnetic cards between the HP-67 and the HP-97, the calculators’ software took care of converting the key codes, and emulated the 97′s print functions through the 67′s display.

The HP-67 is powered by a pack of three AA-sized nickel-cadmium rechargeable batteries. Owing to the power requirements of the built-in thermal printer, the HP-97 employs a larger battery pack and more powerful charger.

Memory and programming:

Of the 26-register data memory, the first ten (“primary registers”) could be accessed directly, ten more as an alternate register set, and the remaining six had special functions for statistical operations and as an index register. Using the latter, a program could access all 26 registers as a single indexed array. Data memory is not permanent as in later models, i.e. register contents and program are lost when powering off.

The built-in magnetic card reader/writer could be used to save programs and data, with the ability to combine data from multiple cards. The same magnetic card format was later used for the HP-41C which offered compatibility to the 67/97 through software in the card reader. HP offered a library of programs supplied on packs of pre-recorded magnetic cards for many applications including surveying, medicine, as well as civil and electrical engineering.

In addition to software and support from HP, an active user community supported the HP67/97 as well as the other HP programmables of the era. The group was called PPC and produced the PPC Journal. One of the notable contributions of the group was the development of a “Blackbox” that allowed pseudo-alphanumeric displays.

Gallery (Before cleaning):

Gallery (Replacement Drive wheel & Battery):

Gallery (Under the Cover):

Download:

source: wikipedia.com hpmuseum.org

Sharp Pocket Computer PC-1360 (Boxed) + Color Dot Printer CE-140P

April 26th, 2015 No comments
Sharp Pocket Computer PC-1360 (Boxed) + Colour Dot Printer

For this donation i thank: Andrea C. from Trieste.

The Sharp PC-1360 is a small pocket computer manufactured by Sharp. it can also be considered as an electronic calculator.

The PC-1360 was introduced in 1987 and was used by engineers, and favored by programmers for its decent programming and graphical capabilities. It was the top model of the (very small, only two models) 13XX series. It has a LCD display with four lines, also the SC61860 CPU, two RAM extension slot which work with the cynox RAM cards, a 15 pin serial interface and also a powerful BASIC. This is the best models for graphic applications.

Gallery:

source: computinghistory.org.uk

Irradio Videosport TVG-888 & Cartridge SuperSport L8610

April 26th, 2015 No comments
Irradio Videosport TVG-888 & Cartridge SuperSport L8610

For this donation i thank: Paolo Cognetti from Roma.

This is a 3rd generation pong color system. It uses the usual 10 games cartridge: Tennis, Hockey, Squash, Practice, Soccer, Basketball, Basketball Practice, Gridball, Traget 1 & 2.

You can find this system everywhere in Europe though it´s origin once was Hongkong. This is a color variant sold by Irradio in Italy.

Gallery:

source: pong-picture-page.de