---
title: Casio PB-770
categories:
- Computers
types:
- Pocket
origins:
- Japan
years:
- '1984'
cpus:
- Specific VLSI
params:
  name: PB-770
  image: /media/museum/photos/casio_pb770.jpg
  company: /companies/casio
  company_name: Casio
  specs:
  - label: NAME
    value: PB-770
  - label: MANUFACTURER
    value: Casio
  - label: TYPE
    value: Pocket
  - label: ORIGIN
    value: Japan
  - label: YEAR
    value: '1984'
  - label: BUILT IN LANGUAGE
    value: Basic
  - label: KEYBOARD
    value: QWERTY caculator type with numeric keypad
  - label: CPU
    value: Specific VLSI
  - label: RAM
    value: 8 kb, up to to 32 kb with 3 x 8 kb memory addons (OR8)
  - label: ROM
    value: 32 kb
  - label: TEXT MODES
    value: 20 x 4
  - label: GRAPHIC MODES
    value: 32 x 160
  - label: COLORS
    value: Black and white LCD screen
  - label: SOUND
    value: Beeper
  - label: SIZE / WEIGHT
    value: 200 x 88 x 23 mm / 315g
  - label: I/O PORTS
    value: Expansion bus, 3 memory expansion slots
  - label: BUILT IN MEDIA
    value: None
  - label: POWER SUPPLY
    value: 4 x ''AA''' cells / CR-1220 lithium cell
  tabs:
  - hardware
  - links
  forum_thread: 369
  hardware:
  - title: FA 10
    subtitle: Plotter and tape interface
    text: The FA-10 offered a 4 colors plotter and a tape interface where you could plug an external tape-recorder or a CM1 Casio tape-recorder.
    image: /media/museum/hardware/casio_pb700_fa10.jpg
  - title: FA-11 INTERFACE
    subtitle: Plotter + Tape recorder
    text: ''
    image: /media/museum/hardware/casio_pb770_fa11-extension.jpg
  links:
  - title: Silrun Systems - The home of programmable Casio pocket calculators
    url: http://www.silrun.de/
    text: German and English zipped manuals
  related:
  - /museum/casio-pb-700
  oc_id: 368
  source:
    url: https://web.archive.org/web/20230609165411/http://www.old-computers.com/museum/computer.asp?c=368
    date: '2023-06-09'
---

The PB-770 is basically a [PB-700](/museum/casio-pb-700/) with more memory expansion possibilities.