---
title: Sharp PC-1260 PC-1261 PC-1262
categories:
- Computers
types:
- Pocket
origins:
- Japan
years:
- '1984'
cpus:
- CMOS SC-61860
params:
  name: PC-1260 PC-1261 PC-1262
  image: /media/museum/photos/sharp_pc1261_withce125_s1.jpg
  company: /companies/sharp
  company_name: Sharp
  specs:
  - label: NAME
    value: PC-1260 PC-1261 PC-1262
  - label: MANUFACTURER
    value: Sharp
  - label: TYPE
    value: Pocket
  - label: ORIGIN
    value: Japan
  - label: YEAR
    value: '1984'
  - label: BUILT IN LANGUAGE
    value: Sharp Basic interpreter
  - label: KEYBOARD
    value: 52 keys, QWERTY caculator type with numeric key-pad
  - label: CPU
    value: CMOS SC-61860 (8bits)
  - label: SPEED
    value: 768 KHz.
  - label: RAM
    value: |-
      PC-1260: 4 KB / 3,198 bytes free\
      PC-1261, PC-1262: 10 KB / 9,342 bytes free
  - label: ROM
    value: 40 KB
  - label: TEXT MODES
    value: 2 lines x 24 chars. (LCD screen), 5x7 dot matrix
  - label: GRAPHIC MODES
    value: None
  - label: COLORS
    value: Monochrome, grey LCD
  - label: SOUND
    value: CPU controlled piezo buzzer, fixed frequency and duration via BASIC statement
  - label: SIZE / WEIGHT
    value: 135 (W) x 70 (D) x 9.5 (H) mm / 115 g (with batteries and hard cover)
  - label: I/O PORTS
    value: Proprietary 11-pin expansion bus
  - label: POWER SUPPLY
    value: 6 volts, 2 x CR 2032 lithium cells
  - label: PERIPHERALS
    value: |-
      CE-125 printer and micro cassette recorder\
      CE-126P thermal printer and tape interface\
      CE-152 tape recorder
  - label: PRICE
    value: |-
      230 (PC 1260, France 1984)\
      411 (PC-1261, France, december 1984)\
      156 (PC-1262, Germany, 1986)
  tabs:
  - photos
  - emulators
  - links
  forum_thread: 461
  photos:
  - title: PC-1260 / 61 / 62
    subtitle: ''
    text: 'From top to bottom: PC-1261, PC-1260, PC-1262'
    image: /media/museum/photos/sharp_pc1261_3models_s1.jpg
  - title: PC-1261
    subtitle: ''
    text: ''
    image: /media/museum/photos/sharp_pc1261_system_s1.jpg
  - title: INSIDE
    subtitle: ''
    text: |-
      **(1)** Removable ROM and RAM card\
      **(2)** LCD display drivers\
      **(3)** Expansion connector\
      **(4)** 768 KHz oscillator. Some users changed it for an 1 MHz model without any dammage. The computer simply ran 30% faster!\
      **(5)** CS-61860 8-bit CPU\
      **(6)** Memory card connector\
      **(7)** Reset switch\
      **(8)** Lithium battery connectors\
      **(9)** LCD contrast knob.
    image: /media/museum/photos/sharp_pc1261_eleccard_s1.jpg
  - title: KEYBOARD DETAILS
    subtitle: ''
    text: ''
    image: /media/museum/photos/sharp_pc1261_insidekeyboard_s1.jpg
  - title: PC-1262'S BOX
    subtitle: ''
    text: ''
    image: /media/museum/photos/sharp_pc1262_box_s1.jpg
  emulators:
  - title: POEMS
    url: http://sourceforge.jp/projects/poems/
    platform: Unix / Linux
    text: PC-12xx, 14xx & 13xx emulator
  - title: PockEmul
    url: http://pockemul.free.fr/
    platform: Multiplatform
    text: Emulates nearly all Sharp pocket computers!
  links:
  - title: Web Wiz CAPTCHA
    url: http://www.webwizcaptcha.com
    text: ''
  related:
  - /museum/sharp-pc-1210-1211-1212
  - /museum/sharp-pc-1245
  - /museum/sharp-pc-1250-pc-1251
  - /museum/sharp-pc-1401-pc-1402-pc-1421
  - /museum/sharp-pc-1403-h
  - /museum/sharp-pc-1500-pc-1500a
  - /museum/sharp-pc-2500
  oc_id: 466
  source:
    url: https://web.archive.org/web/20230605024057/http://www.old-computers.com/museum/computer.asp?c=466
    date: '2023-06-05'
---

These small pocket computers were derived from the [PC-1251](/museum/sharp-pc-1250-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](http://retrocomputing.ch/).