Computer History

A look at my collection of old computers and calculators.

Newer stuff first…

iPhone (1st generation)

From around 2007.

The first iPhone, only 2G/GPRS cellular connectivity or Wi-Fi.

Running a 412 MHz Samsung ARM processor with 128MB of RAM.

Palm Tungston C

From around 2003.

The first Palm device to have built in 802.11b Wi-Fi.

Running a 400 MHz Intel PXA255 processor with 64 MB of memory.

Palm M515

From around 2002.

From the Palm V series, this was seen by many people as the definitive PDA.

Rechargeable with an internal lithium polymer battery.

A 160x160 pixel display with full color.

Running a 33 MHz Motorola Dragonball VZ with 16 MiB of memory.

Libretto 100CT and 50CT

From around 1996.

The Toshiba Libretto series was designed to be a full PC computer the size of a paperback book.

Both have an Intel Pentium 166 MHz MMX with 32 MB RAM

Apple Newton MessagePad 130

From around 1996.

The Apple Newton MessagePad was designed to be a handheld computer with a 320x240 pressure-sensitive, backlit monochrome display for use with a provided stylus.

Expandable via PCMCIA cards.

Casio FX-7200g

From around 1986.

The Casio FX-7200g is a programmable graphing calculator.

Casio PB-100

From around 1983.

The Casio PB100 was a real pocket computer in so much as it could run small programs written in BASIC.

Cannon MS10 - Snoopy math & game calculator

From around 1982.

The Cannon MS10 was both a calculator and an education game.

ZX Spectrum

From around 1982.

The ZX Spectrum was one of the most popular home computer in the UK in 1983.

Running a 3.5 MHz Z80 CPU with 16KB of RAM.


From around 1981.

The ZX81 was designed to be a low-cost introduction to home computing for the general public, quickly replace by the ZX Spectrum.

Sold as a kit or assembled and ready to go.

Running a 3.25 MHz Z80 CPU with 16KB of RAM.

Ohio Scientific Superboard II

From around 1978.

Running a 6502 CPU with 4KB of RAM.

Novus 4510 Mathematician calculator

From around 1975.

The Novus Mathematician uses Reverse-Polish Notation (RPN) for calculations.

eight-digit red LED display

Core Memory Board

From around 1970.

History of this is not clear, it is likely from a PDP8.