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S > SHARP  > PC-1403 (H)   

PC-1403 (H)

As the PC-1401 family was rather successful, Sharp released an update three years later.

The two new models were named PC-1403 and PC-1403H.
The differences were not large, but very helpful. They had a better display, with 24 instead of 16 characters on the same display area, and lowercase letters could now be used. Thus, there was an additional SML key to switch between uppercase and lowercase entry mode.
Moreover, matrix calculation functions had been added, such as addition, multiplication, inversion and determinant. They could be used in calculator mode only.

The hardware was based on a later incarnation of the SC61860 CPU, paced at 768 kHz. The RAM had also been expanded, with 8 KB in the PC-1403 (D4364G 8k x 8 static RAM), and generous 32 KB in the PC-1403H (D43256AG 32k x 8 static RAM). The new functions also required a larger ROM (72 KB, LZ92K32 plus SC6976T).

Thanks again to Roman von Wartburg for this information.

NAME  PC-1403 (H)
TYPE  Pocket
YEAR  1986
BUILT IN LANGUAGE  Sharp BASIC interpreter
KEYBOARD  77 keys, QWERTY calculator type with numeric key-pad and math function keys
CPU  Sharp CMOS SC61860 (8 bits)
SPEED  768 kHz
RAM  PC-1403: 8 KB - PC-1403H: 32 KB
ROM  72 KB
TEXT MODES  1 line x 24 chars. (LCD screen), 5x7 dot matrix
COLORS  Monochrome LCD
SOUND  CPU controlled piezo buzzer, fixed frequency and duration via BASIC statement
SIZE / WEIGHT  170 (W) x 72 (D) x 9.5 (H) mm / 150 g (with batteries and hard cover)
I/O PORTS  Proprietary 11-pin expansion bus
POWER SUPPLY  6 volts, 2 x CR 2032 lithium cells
PERIPHERALS  CE-126P thermal printer and tape interface

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