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C > CASIO  > PB-1000   


Casio
PB-1000

The Casio PB-1000 was an original, well designed and powerful pocket computer for its time.

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.

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".

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.

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.

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.

NAME  PB-1000
MANUFACTURER  Casio
TYPE  Pocket
ORIGIN  Japan
YEAR  1987
BUILT IN LANGUAGE  C61 Basic interpreter, Assembler, File Manager, Editor
KEYBOARD  64 calculator keys + 13 sensitive keys + 16 LCD sensitive areas
CPU  CMOS, Hitachi HD61700 8-bit
SPEED  Unknown
CO-PROCESSOR  None
RAM  8 KB + optional 32 KB RAM card
ROM  32 KB + 3 KB included into the CPU
TEXT MODES  32 char. x 4 lines (32 x 8 virtual screen)
GRAPHIC MODES  193 x 32 pixels
COLORS  Grey LCD
SOUND  Buzzer
SIZE / WEIGHT  18.7 (W) x 9.7 (H) x 2.4 (D) cm / 390g with batteries
I/O PORTS  Expansion connector
POWER SUPPLY  3 x AA batteries
PERIPHERALS  MD-100 3.5'' FDD unit, FA-7 tape interface (both devices include a printer port and an RS-232 interface)
PRICE  Unknown

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