May 31, 2020

Tags: #History

Computer History

A look at my collection of old computers and calculators.

Newer stuff first…

iPhone (1st generation)

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

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

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

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

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

Casio FX-7200g

From around 1986.
The Casio FX-7200g is a programmable graphing calculator.

Casio PB-100

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

Cannon MS10 - Snoopy math & game calculator

From around 1982.
The Cannon MS10 was both a calculator and an education game.

ZX Spectrum

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.

ZX81

ZX81

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

Ohio Scientific Superboard II

From around 1978.
Running a 6502 CPU with 4KB of RAM.

Novus 4510 Mathematician calculator

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

Core Memory Board

From around 1970.
History of this is not clear, it is likely from a PDP8.