Click Here to visit our Sponsor
The Latest News ! The History of Computing The Magazine Forums Collectors corner Have Fun there ! Buy books and goodies
  Click here to loginLogin Click here to print the pagePrinter ViewClick here to send a link to this page to a friendTell a FriendTell us what you think about this pageRate this PageMistake ? You have mr info ? Click here !Add Info     Search     Click here use the advanced search engine

English
Electric
Co.

DEUCE
Browse console museumBrowse pong museum









 

Pixel adventurer goodies !

see details
MSX Retro Gamer goodies !

see details
Space Invaders goodies !

see details
Odyssey 2 / Videopac Select Game prompt goodies !

see details
Space Invaders - Retro Gamer goodies !

see details
MZ-700 goodies !

see details
1kb memory only...sorry goodies !

see details
Odyssey 2 / Videopac sprites goodies !

see details
Commodore 64 boot screen goodies !

see details
Horace is not dead goodies !

see details
I love my Oric-1 goodies !

see details
Apple II goodies !

see details
Amstrad CPC-464 goodies !

see details
www.old-computers.com logo goodies !

see details
Oric Atmos goodies !

see details
READY prompt goodies !

see details
ZX Spectrum goodies !

see details
Camputers Lynx logo goodies !

see details
H.E.R.O. goodies !

see details
Commodore VIC-20 goodies !

see details
Commodore 64 goodies !

see details
Atari ST bomb icons goodies !

see details
Atari ST bee icon goodies !

see details
Destroy all humanoids ! goodies !

see details
Back to the roots goodies !

see details
Amiga Workbench goodies !

see details







S > SHARP  > PC-1250 PC-1251     


Sharp
PC-1250 PC-1251

With the PC-1251, Sharp started off their product range of really tiny pocket computers. It was the third original design after the PC-121x and PC-1500 series.

Contrary to its predecessors, it was really pocket sized, measuring only 135 x 70 x 9.5 mm. Nevertheless, it featured a 24 character display, and with 4 KB RAM it even outclassed the PC-1500 basic version. The major drawback of the new design was that the tiny keys are only compatible with pointed fingers.

The PC-1251 was based on a new 8-bit CMOS micro processor, the SC61860, which was mounted on the main PCB together with the display driver chip SC43536. On an additional small PCB, 24 KB ROM (LH532917) and 4 KB RAM (two HM6116 2k x 8 chips) were located. A new feature was the so-called "reserve memory" which allowed to assign often used BASIC commands or functions to 18 of the alphanumeric keys.

Together with the PC-1251, the CE-125 thermal printer and micro cassette recorder unit was introduced. With integrated NiCd accumulators, it was fully mains independent and made the 1251 into a very compact mobile computing system. The CE-125 also featured an additional tape interface for external tape recorders.

The PC-1250 was the same machine as the PC-1251 but with only 2 KB of RAM.

Thanks to Roman von Wartburg and his site for information and picture.

ShareThis


 

Selling my PC 1251 on ebay

          
Monday 23rd April 2012
Will (UK / Canada)
eBay ad

 

NAME  PC-1250 PC-1251
MANUFACTURER  Sharp
TYPE  Pocket
ORIGIN  Japan
YEAR  1982
BUILT IN LANGUAGE  BASIC interpreter
KEYBOARD  52 keys, QWERTY calculator type with numeric key-pad
CPU  CMOS SC61860 (8 bits)
SPEED  576 kHz
RAM  4 KB
ROM  24 KB
TEXT MODES  1 line x 24 char. 5x7 dot matrix
GRAPHIC MODES  None
COLOrsc  Monochrome 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)
I/O PORTS  Proprietary 11-pin expansion bus
POWER SUPPLY  6 volts, 2 x CR 2032 lithium cells
PERIPHERALS  CE-126P thermal printer
CE-124 Tape recorder interface
CE-125 Thermal printer and micro cassette recorder
PRICE  About 340 (Germany, 09.1982)





Google
 
Web www.old-computersc.com


 

More pictures
Emulators
Internet Links
Documentations
Mini-Forum

Click here to go to the top of the page   
Contact us | members | about old-computers.com | donate old-systems | FAQ
OLD-COMPUTERS.COM is hosted by - NYI (New York Internet) -