Click Here to visit our Sponsor
The Latest News ! The History of Computing The Magazine Have Fun there ! Buy books and goodies
  Click here to loginLogin Click here to print the pagePrinter ViewClick here to send a link to this page to a friendTell a FriendTell us what you think about this pageRate this PageMistake ? You have mr info ? Click here !Add Info     Search     Click here use the advanced search engine
Browse console museumBrowse pong museum









 

Ready prompt T-shirts!

see details
C64 maze generator T-shirts!

see details
Spiral program T-shirts!

see details
Pixel Deer T-shirts!

see details
BASIC code T-shirts!

see details
Breakout T-shirts!

see details
Vector ship T-shirts!

see details
Pak Pak Monster T-shirts!

see details
Shooting gallery T-shirts!

see details
Pixel adventure T-shirts!

see details





C > CASIO  > PB-300   


Casio
PB-300

Basically, the PB-300 was a PB-100 with more RAM and a built-in thermal printer. To our knowledge, Casio was the only company who designed real pocket size computers with integrated printers.

Of course, the PB-300 was substantially larger than its elder brother, therefore the keyboard could be laid out more generously, with a real space bar and an additional key for paper feed.

Due to the different physical dimensions, the main PCB had a different layout. However, the logic circuits were identical to the PB-100, with an additional HD61914 RAM chip. No further RAM expansion was made available.

As printers needed much more energy than the computer components, a 4 x 1.2V NiCad battery pack had to be integrated, which needed to be charged with an external power adaptor. The necessary printer and battery charging circuits were built onto a second PCB.

The printer used thermal paper of 39 mm width and was able to print 20 characters per line, making printed listings a little bit more legible than on the 12-character display.

To sum up, the PB-300 was a really cute machine. Imagine taking it with you in 1983 and impressing your friends by printing business cards when needed.

The PB-300 was also sold in Europe under the name Olympia OP-644.

Thanks to Roman von Wartburg (retrocomputing.ch) for information and pictures.

ShareThis


 

I want a Casio PB-300. My uncle had one and I broke it as a kid. I want to surprise him! I can pay about $50 or so. Write to me at 4dylansmart at Google dot com

          
Saturday 16th March 2013
Dylan (USA)

i have two for sale, one turns on, one doesnt

          
Sunday 23rd September 2012
freddy (us)

I would like to buy a Casio PB-300 so I can sit at home and remember the early days. Anybody have one I can buy?

          
Tuesday 18th September 2012
Carl (United States)

 

NAME  PB-300
MANUFACTURER  Casio
TYPE  Pocket
ORIGIN  Japan
YEAR  1983
BUILT IN LANGUAGE  BASIC interpreter
KEYBOARD  QWERTY calculator type 54 keys with numeric keypad
CPU  HD61913 CMOS VLSI
SPEED  455 kHz, ceramic resonator used as system clock
RAM  2 KB (1568 bytes for BASIC)
ROM  12 KB
TEXT MODES  1 line x 12 chars plus a 4 digit seven segment display part
GRAPHIC MODES  None
COLORS  Monochrome LCD
SOUND  None
SIZE / WEIGHT  173 (W) x 90 (D) x 20 (H) mm / 258 g (with batteries)
I/O PORTS  12-pin expansion port for cassette interface
POWER SUPPLY  2 x CR-2032 lithium batteries
Integrated NiCd batteries for printer. External charger CHA-1 (4.8V/4.1W)
PERIPHERALS  FA-3 cassette interface
PRICE  Unknown


retro computing t-shirts and goodies
3D Cubes
BASIC code
Breakout
C64 maze generator
Pak Pak Monster
Pixel adventure
Pixel Deer
Ready prompt
Shooting gallery
Spiral program
Vector ship

Related Ebay auctions in real time - click to buy yours







 
Click here to go to the top of the page   
Contact us | members | about old-computers.com | donate old-systems | FAQ
OLD-COMPUTERS.COM is hosted by - NYI (New York Internet) -