1,289 discussions, 9,527 archived comments; pages no longer carry the comments themselves. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
132 lines
5.1 KiB
Markdown
132 lines
5.1 KiB
Markdown
---
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title: Casio PB-1000
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categories:
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- Computers
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types:
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- Pocket
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origins:
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- Japan
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years:
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- '1987'
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cpus:
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- CMOS
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params:
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name: PB-1000
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image: /media/museum/photos/casio_pb1000_system_s2.jpg
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company: /companies/casio
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company_name: Casio
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specs:
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- label: NAME
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value: PB-1000
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- label: MANUFACTURER
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value: Casio
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- label: TYPE
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value: Pocket
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- label: ORIGIN
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value: Japan
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- label: YEAR
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value: '1987'
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- label: BUILT IN LANGUAGE
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value: C61 Basic interpreter, Assembler, File Manager, Editor
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- label: KEYBOARD
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value: 64 calculator keys + 13 sensitive keys + 16 LCD sensitive areas
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- label: CPU
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value: CMOS, Hitachi HD61700 8-bit
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- label: SPEED
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value: Unknown
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- label: CO-PROCESSOR
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value: None
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- label: RAM
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value: 8 KB + optional 32 KB RAM card
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- label: ROM
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value: 32 KB + 3 KB included into the CPU
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- label: TEXT MODES
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value: 32 char. x 4 lines (32 x 8 virtual screen)
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- label: GRAPHIC MODES
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value: 193 x 32 pixels
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- label: COLORS
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value: Grey LCD
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- label: SOUND
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value: Buzzer
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- label: SIZE / WEIGHT
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value: 18.7 (W) x 9.7 (H) x 2.4 (D) cm / 390g with batteries
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- label: I/O PORTS
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value: Expansion connector
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- label: POWER SUPPLY
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value: 3 x AA batteries
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- label: PERIPHERALS
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value: MD-100 3.5'' FDD unit, FA-7 tape interface (both devices include a printer port and an RS-232 interface)
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- label: PRICE
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value: Unknown
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tabs:
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- photos
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- hardware
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- emulators
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- links
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forum_thread: 1109
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photos:
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- title: RUNNING
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subtitle: ''
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text: The bottom line displays the menu, the three top lines show the content of the RAM memory.
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image: /media/museum/photos/casio_pb1000_system_s4.jpg
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- title: KEYBOARD CLOSE-UP
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subtitle: ''
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text: ''
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image: /media/museum/photos/casio_pb1000_keyboard_s1.jpg
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- title: CLOSED
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subtitle: ''
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text: The PB-1000 features only one connector, intended for FA-7 and MD-100 expansions.
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image: /media/museum/photos/casio_pb1000_sides_s1.jpg
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- title: INSIDE
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subtitle: ''
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text: |-
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The logic card is located under the keyboard. It supports only the CPU, ROM and RAM chips. Display drivers are located behind the LCD display.
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**(1)** Expansion connector\
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**(2)** Optional RAM card connector\
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**(3)** 8 KB RAM chip (Toshiba TC-5565)\
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**(4)** 32 KB ROM chip (NEC 23C256)\
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**(5)** Hitachi HDS61700 processor.
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image: /media/museum/photos/casio_pb1000_inside_s1.jpg
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hardware:
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- title: FA 10
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subtitle: Plotter and tape interface
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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.
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image: /media/museum/hardware/casio_pb700_fa10.jpg
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- title: FA-11 INTERFACE
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subtitle: Plotter + Tape recorder
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text: ''
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image: /media/museum/hardware/casio_pb770_fa11-extension.jpg
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emulators:
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- title: PB 1000 emulator
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url: http://www.pisi.com.pl/piotr433/pb1000ee.htm
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platform: Windows
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text: The program emulates the HD61700 microprocessor and uses the ROM dump from the original calculator, therefore it should function almost exactly like the real one.
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links:
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- title: Andreas Wichmann's page
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url: http://www.itkp.uni-bonn.de/~wichmann/pb1000.html
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text: lots of useful information and links about the PB-1000
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- title: Casio PB-1000
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url: http://homepage3.nifty.com/lsigame/pb-1000/pb-1000.htm
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text: Very interesting site (in Japanese)
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- title: Silrun Systems - The home of programmable Casio pocket calculators
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url: http://www.silrun.de/
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text: German and English zipped manuals
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oc_id: 1139
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source:
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url: https://web.archive.org/web/20230608154227/http://www.old-computers.com/museum/computer.asp?c=1139
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date: '2023-06-08'
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---
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The Casio PB-1000 was an original, well designed and powerful pocket computer for its time.
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On top of its standard QWERTY keyboard, a row of sensitive keys allowed fast scientific calculations, menus access and text editing. The 4-line LCD display also had 16 sensitive areas.
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The computer could be programmed either in Basic or Assembly language. The C61 Basic interpreter, based on Japan Industrial Standard BASIC, had a wide range of built-in mathematic, trigonometric and statistic functions. Assembly programs had to be typed by using the built-in editor then compiled. The user's manual gave little information about CPU instructions and, oddly enough, Casio and it's distributors never released a full description of the whole CPU's instructions set, although Casio published an incomplete "Technical Reference Manual".
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The processor was an Hitachi HDS61700. It contained a small amount of ROM and RAM, as well memory management and I/O circuitry. The memory was managed like a virtual disk. Several Basic or Assembly programs as well as ASCII text could be stored together in the same RAM area.
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Two extensions were released for the PB-1000, the FA-7 Serial, Parallel and tape recorder interface, and the rare MD-100 3.5" floppy drive unit.
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The PB-1000 was followed by the **PB-2000** which lost the lift up display but had the unique feature of being programmable in ANSI C language.
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