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S > SHARP  > PC-1260 PC-1261 PC-1262   


Sharp
PC-1260 PC-1261 PC-1262

These small pocket computers were derived from the PC-1251. They had same keyboard and size. The main difference was the larger display, which now provided two lines with 24 characters, which was a great advantage, especially for BASIC programming. The built-in BASIC interpreter was also close to the PC-1251 interpreter.

In 1984, the PC-1260 and PC-1261 were released. The only difference between these two was that the former had 4 KB RAM and the latter 10 KB. Internally, they were operated by the SC61860 CPU (8 bits), which was clocked 33% faster than in the PC-1251.

The CPU was mounted on the main PCB, together with the two display driver chips SC43536. Memory was incorporated on a second small PCB. The PC-1260 had the SC613256 ROM plus two HM6116 8K x 8 RAM ICs. The PC-1261 had the same ROM, but five "naked" RAM chips, i.e. chips without DIL case, mounted directly onto the PCB.

Two years later, the PC-1261 was re-released as the PC-1262. It was identical in functional terms, but had a different case color scheme. Internally, it was based on the same main PCB, but the memory PCB was now equipped with a SC623257 ROM, a HM6264 8K x 8 RAM, and a LH5116 2K x 8 RAM.

The picture represents a PC-1261 mounted on a CE-125 micro cassette recorder and thermal printer unit.

Information provided by Roman von Wartburg.

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David,

What are the difference between the PC-1260 and 1251 ? Is it hardware or software (instructions) ?

Thanks

          
Tuesday 18th July 2017
Ra

«downloadable versions of the programming/operations manual that is in English»: on the net you can find Enlish manual in PDF for PC-1251: operation is near identical to PC-1261 with only a few differences (I can tell you some of the differences).

Manual for PC-1251: http://pocketcomputerworld.free.fr/Manuals/PC-1251.pdf

          
Thursday 12th March 2015
David

CyberSpider,

I have a Sharp PC-1261 with CE-125 Printer and Microcassette Interface and all the manuals (3, English). Neither has had a lot of use. I wanted to use them recently but the PC-1261 no longer works correctly, most likely due to bad connections from the 2 segmented rubber strip LCD connectors used in this device. I''ve tried cleaning/re-seating them with very little success. I don''t hold out much hope of getting the 1261 operating again since those connector strips are not a commmonly available item.

I''d be interested in obtaining a working 1261 or 1262 in exchange for good copies of the manuals. Please e-mail if interested to mreilly1@columbus.rr.com.

Thanks

          
Friday 28th November 2014
tonymax2 (Columbus, Ohio area/USA)

 

NAME  PC-1260 PC-1261 PC-1262
MANUFACTURER  Sharp
TYPE  Pocket
ORIGIN  Japan
YEAR  1984
BUILT IN LANGUAGE  Sharp Basic interpreter
KEYBOARD  52 keys, QWERTY caculator type with numeric key-pad
CPU  CMOS SC-61860 (8bits)
SPEED  768 KHz.
RAM  PC-1260: 4 KB / 3,198 bytes free
PC-1261, PC-1262: 10 KB / 9,342 bytes free
ROM  40 KB
TEXT MODES  2 lines x 24 chars. (LCD screen), 5x7 dot matrix
GRAPHIC MODES  None
COLORS  Monochrome, grey LCD
SOUND  CPU controlled piezo buzzer, fixed frequency and duration via BASIC statement
SIZE / WEIGHT  135 (W) x 70 (D) x 9.5 (H) mm / 115 g (with batteries and hard cover)
I/O PORTS  Proprietary 11-pin expansion bus
POWER SUPPLY  6 volts, 2 x CR 2032 lithium cells
PERIPHERALS  CE-125 printer and micro cassette recorder
CE-126P thermal printer and tape interface
CE-152 tape recorder
PRICE  230 (PC 1260, France 1984)
411 (PC-1261, France, december 1984)
156 (PC-1262, Germany, 1986)


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