Sharp PC-3000 DOS Handheld

Sharp PC-1350 Pocket Computer

By Richard Zealley | 7th November 2022

The Sharp PC-1350 was introduced in 1984 and used by engineers and programmers, known for its programming and graphical capabilities.

Sharp PC-1350 Moon Lander program lsting

Sharp Moon Lander

By Richard Zealley | 7th November 2022

A short program found on a listing that came with my Sharp PC-1350. I’m busy adding this bit by bit and will note when it’s complete…

Texas Instruments TI99/4a

By Richard Zealley | 10th March 2022

The Texas Instruments TI-99/4A followed the TI99/4, which was let down by a poor keyboard, and was released in 1981. Based on the TMS9900 microprocessor, the TI99/4 was the first 16-bit home computer.

Epson P40 Thermal Printer

By Richard Zealley | 27th October 2020

The Epson P-40 is compact portable uni-directional thermal dot matrix printer which operates on NiCd batteries. It features various print modes including two bit image modes and character sets for 9 countries. It also has the ASCII 95 character set. It has a speed of 45cps for normal characters and 22.5 cps for enlarged characters.…

Hewlett Packard HP 95LX

By Richard Zealley | 23rd October 2020

The HP 95LX was launched on April 23, 1991 before the term personal digital assistant, or PDA, found its way into everyday use putting the power of a computer into the palm of your hand. It ran MS-DOS v3.22 in 512K bytes of RAM and 1M-byte ROM and had a QWERTY keyboard and a separate…

Apple Pascal Diskettes

Apple Pascal Disks

By Richard Zealley | 24th September 2020

Information about the contents and use of Apple Pascal disks with Apple II computers including how to manage boot disks.

Apple IIe flopty drie and Apple Pascal diskettes

Apple Pascal on Apple IIe

By Richard Zealley | 21st September 2020

Back In August I took delivery of a boxed Apple IIe in excellent working condition. I had used an earlier Apple II at university in 1982/83 to learn Pascal and hoped to find a set of Pascal diskettes which I duly did a couple of weeks later. I didn’t want to try and do too…

Tandy WP-3 Word Processor

By Richard Zealley | 8th June 2020

The Tandy WP-3 is a portable Word Processor from the lates 1980s, early 1990s, a successor to the Tandy WP-2 but with a British English dictionary. Based on the Z-80 compatible NEC 70008A-6 it had a 6 line LCD display and a very usable full-size keyboard. Powered by 6V main supply and/or 4 x AA battries with backup from a CR2340 cell.

Sharp PC-3000 DOS Handheld

Sharp PC 3000

By Richard Zealley | 27th April 2020

The PC-3000 was a DOS-based computer, the predecessor to the PC-3100, launched in 1991 following the release of the Atari Portfolio, the world’s first palmtop computer.

Texas Instruments TI Programmable 57

Texas Instruments TI Programmable 57

By Richard Zealley | 26th April 2020

The TI-57 was a programmable calculator made by Texas Instruments from 1977 to 1982, which was followed by the more powerful TI-58 and TI-59. It had 50 program steps and 8 memory registers. I owned a Texas Instruments TI-57 while at university, used very occasionally for ‘real’ problems but mainly just played with the examples…