• Pocket Computers
• Early Organizers
• BASIC Languages
• Cables
• Level Converters
• Printers
• Memory Cards
• AC Adapters/Chargers
• Other Accessories
• Connectors

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Note that we do NOT have these calculators available for sale. Sharp has discontinued all of these models.

CPU/
Language

First Sharp Pocket Computer in PC Series. Programmed from keyboard - stored up to 128 program steps in memory.

Numeric-only florescent display.

153 x 76 x 20 mm

First Sharp BASIC Pocket Computer
Sold by Radio Shack as PC-1
175 x 70 x 15 mm, 170g

First in the PC-125x series

Also sold as Radio Shack PC-8

Case is black-plastic membrane.
Preceded by PC-1140/1150

135 x 70 x 10 mm
PC-1250 sold by Radio Shack as PC-3

Memory
Map*

135 x 70 x 10 mm

PC-1262 shown  135 x 70 x 10 mm
PC-1260/1 identical with different color scheme

Memory
Map*

Half-size RAM card slot in back
135 x 70 x 10 mm

Closed: 135 x 71 x 19 mm
Open: 135 x 141 x 10 mm

run-time version of PC-1280

One full-size RAM card slot in back.
182 x 72 x 16 mm

See PC-1350 photo.
 Has 2 half-size RAM card slots in back
182 x 16 x 72 mm

Number pad, 8 function, Yes, No & Enter keys (run-time version of PC-1360).
182 x 16 x 72 mm

Earlier version of PC-1421 without the business/financial functions
qwerty keyboard
170 x 72 x 10 mm.

qwerty keyboard, scientific functions built in
170 x 72 x 10 mm

Business / Financial Calculator
with special financial function keys
derived from PC-1401
72 x 170 x 10 mm, 150 g
CR2032 x 2 170 x 72 x 10 mm

Similar to PC-1450 below
qwerty keyboard
170 x 72 x 10 mm
Sequel to PC-1401

Scientific computer but no financial functions, 
sequel to EL-5500/EL-5500II
RAM card slot in back 
(fits full and half-size RAM cards)
182 x 72 x 16 mm

86 x 195 x 26mm, 375g
Tandy sold the PC-1500 with a slightly different keyboard as the PC-2
The PC-1500A and PC-1501 are identical units

Successor to the PC-1500
86 x 195 x 25 mm, 390 g

Same as PC-1600 but with no qwerty keyboard.
See PC-1252 photo.
86 x 195 x 25 mm, 390 g

Integral color printer and full-size qwerty keyboard.  Based on the PC-1350.
210 x 297 x 46 mm, 1300 g

32K RAM, half-size RAM cart slot in back 
Scientific keyboard with many scientific routines
105 x 200 x 19 mm, 265 g

Similar to PC-E500
100 x 215 x 18 mm, 300 g

Run-time calculator, descendent of PC-V550

 

Run-time calculator,  number pad, 8 function keys, Yes, No, Menu, Calc, & Enter keys.  

  Half-size RAM card slot
(8K - 256K)

155 x 78 x 13 mm

The very first pocket computers (PC-1201) just memorized key presses and stored the sequence in memory.  See sample PC-1201 program.

Next (EL-5100) came the Algebraic Expression Reserve (AER) mode which allowed you to enter an expression and the calculator would evaluate it.  The result could be stored in a memory and recalled.

With the PC-1210/11, Sharp introduced a simplified BASIC language (known as S-BASIC) to their pocket computers.  There were many variations of the S'-BASIC and S-BASIC versions, with later versions being supersets of the early ones.

S'-BASIC (S-prime) was the initial BASIC. It appeared first in the PC-1210/PC-1211 machines.  It uses a very efficient single-byte tokenizing system which was able to put every BASIC statement into a single byte.  There was no ability for upper/lower case letters.

S-BASIC appeared in the PC-1260, PC-1350 and PC-1401 (EL-5500II) machines.  It uses a two-byte tokenizing system and has quite a few more statements than S'-BASIC.  Programs written in S'-BASIC can generally (but not always) be transferred to machines that use S-BASIC although some minor tweaking of the program might be required.

The PC-1500/PC-1600 are Z80-based machines and used a different version of BASIC.

Shown with OZ-707 Card inserted
Organizer with telephone, schedule, calendar, world clock
155 x 184 x 11 mm (open)
155 x 90 x 20 mm (closed)
245g

BASIC Program Card
with 20 function keys
86 x 54 x 2 mm, 18 g

ROM/RAM
expansion card
with 20 function keys
86 x 54 x 4 mm

Very few of these are available now, but you can built your own by following these excellent instructions by Andrew Woods.

To upload a BASIC program from the PC-1360 or other calculator with a 15-pin SIO connector to a PC, you need a level converter and this Upload program.  Run the program with no arguments (i.e., just type Upload.exe) to get a help screen.

This is a DOS program and can be run from a DOS prompt in Win98 or earlier.  It also works in a command window with Windows 2000/SP3, but has not been tested with other versions of the NT/2K/XP family.
 

11-pin &
11-pin

Printer & cassette interface
(shown with PC-1211)

Printer (thermal) & cassette interface
EA-1250P roll paper 58 mm wide
198 x 156 x 34 mm

Printer (thermal) &
micro-cassette tape recorder

(Shown with PC-1250)

Thermal printer & cassette interface

116 x 140 x 23 mm

4-color graphic printer & cassette interface
(shown with PC-1500) 330 x 50 x 115 mm, 900g

4-Color X/Y plotter printer,
EA-515P paper 114 mm wide,
330 x 160 x 75 mm

Thermal graphics printer for PC-V550 only (fits into printer).

16 x 255 dots per row, 32 half-size chars.  Paper width 58 mm.  Optional modem built into printer base.

99 x 266 x 38 mm

2.5 inch Pocket Floppy Drive
64K per side (512 bytes/sector, 8 sectors/track)  48 TPI 16 Tracks,  270 rpm GCR 4/5
96 x 122 x 39 mm

Uses CE-1650F Floppy discs

15-Pin SIO Connector

The 15-pin SIO (serial input-output) connector is a standard one Sharp that has used for some time--most of their pocket computers use this connector for serial input/output.

It provides TTL-level serial data to/from the pocket computer. A Level Converter is required to interface with standard RS-232 serial communications.  (The new "mini" version of this connector is much smaller, but has the same pin out.)

11-Pin Connector

The 11-pin connector is a proprietary Sharp interface used to connect printers, cassette interfaces, and pocket floppy drives.  It can also be used to transfer programs between some pocket computers with the EA-129C cable.

9-Pin & 25-Pin Connectors