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
Pak Pak Monster T-shirts!

see details
Shooting gallery T-shirts!

see details
Pixel adventure T-shirts!

see details
Vector ship T-shirts!

see details


Tandy Radio Shack
TRS 80 PC-1

The "TRS-80 Pocket Computer" was the first pocket computer Tandy/Radio Shack distributed. Nowadays, it is often referred to as the TRS-80 PC-1, so as to differentiate it from its successor, the TRS-80 PC-2 (and following), which is a clone of the Sharp PC-1500.

The TRS-80 Pocket Computer was custom manufactured by Sharp Corporation, and is technically identical with the Sharp PC-1211 (see there for more technical information). There were some minor differences: The colour style was a bit different, with gray and black prevailing instead of brown, and of course with a Radio Shack type label; moreover, the computer came with a soft (instead of hard) protective case, and an additional Quick Reference Card.

The peripherals were - of course - the same as for the Sharp models: The cassette interface unit (Catalog Number 26-3503), and the printer and cassette interface (26-3505 ), which incorporated a single needle mechanical dot printer.

Special thanks to Roman von Wartburg and his site for information and picture.

MANUFACTURER  Tandy Radio Shack
TYPE  Pocket
YEAR  1980
KEYBOARD  57 keys, QWERTY calculator type with numeric key-pad
CPU  Sharp CMOS SC43177 and SC43178 (4 bits)
SPEED  256 kHz
RAM  1920 Bytes; 1424 steps / 178 memories available
ROM  11,2 kB (?)
TEXT MODES  1 line x 24 chars. (LCD screen)
COLORS  Monochrome
SOUND  CPU controlled piezo buzzer, 1 tone with fixed frequency and duration
SIZE / WEIGHT  175 (W) x 70 (D) x 15 (H) mm / 170 g
I/O PORTS  9 pin expansion port for printer and cassette interface
POWER SUPPLY  4 x 1,35 V button cell MR44 or similar
PERIPHERALS  26-3503 cassette interface
26-3505 printer / cassette interface (mechanical dot printer)
CTR-80A cassette recorder (generic)
PRICE  $230

retro computing t-shirts and goodies
3D Cubes
BASIC code
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 | donate old-systems | FAQ
OLD-COMPUTERS.COM is hosted by - NYI (New York Internet) -