Feeds

Before the iPad, there was the Newton

MessagePad 120 – it didn't suck

Internet Security Threat Report 2014

Take it off!

The MessagePad 120 is relatively straightforward to open up, either for simple repairs or just to satisfy nerdy curiosity — PDA Soft provides a clear set of take-apart instructions.

Back in the mid-1990's, however, snap-in wiring connections were more rare than they are today, so breaking an opened-up MessagePad 120 down into its constituent parts requires some soldering-iron dexterity, a skill I don't possess.

So here's my 120, merely opened up, and not fully disassembled — I didn't want to risk murdering my old friend.

Newton MessagePad 120 - inside

(click to enlarge)

Lying face down with its bottom removed, the battery bay (right) and PCMCIA card slot (left) dominate the MessagePad 120's main circuit board. Note that board-component spacing and layout is rather relaxed when compared to that of current handhelds.

Newton MessagePad 120 - ports (inside)

(click to enlarge)

Remember that DIN-8 serial port and speaker from a few pages back? Here they are again, en déshabille, flanking the MessagePad 120's seven-volt power input.

Newton MessagePad 120 - IR port (inside)

(click to enlarge)

The rear-facing infrared port uses a 1.5-by-1cm mirror to bounce the signal up to two horizontally mounted IR sensors and down from its one IR emitter.

Newton MessagePad 120 - ROM

(click to enlarge)

When running Newton OS 1.3, the MessagePad 120 had 4MB of ROM; when upgraded to OS 2.0, that ROM doubled to 8MB. These two Apple-branded chips, unlike any other of the 120's circuitry, ride on the handheld's bottom cover. I wouldn't bet my 'Pad on it, but my presumption is that they're the 120's OS-housing ROMs.

Newton MessagePad 120 - ROM sockets

(click to enlarge)

The two (ROM?) chips in the previous photo, mounted on the 120's case bottom, interface with the main circuit board mounted in the case top through the two sockets on the right and left of this photo.

Newton MessagePad 120 - recharger pads

(click to enlarge)

As mentioned above, Apple offered an optional NiCad Battery Pack for the MessagePad 120, which was charged through — what else? — an optional MessagePad 120 Charging Station, which was simply a dock into which you could slip your 'Pad or battery pack. Contact was made through two external pads, which then led through the bottom of the 120's case (left) and made contact with small pads on the the circuit board (right).

Top 5 reasons to deploy VMware with Tegile

More from The Register

next story
Chipmaker FTDI bricking counterfeit kit
USB-serial imitators whacked by driver update
Xperia Z3: Crikey, Sony – ANOTHER flagship phondleslab?
The Fourth Amendment... and it IS better
DOUBLE BONK: Testy fanbois catch Apple Pay picking pockets
Users wail as tapcash transactions are duplicated
Microsoft to enter the STRUGGLE of the HUMAN WRIST
It's not just a thumb war, it's total digit war
Google Glassholes are UNDATEABLE – HP exec
You need an emotional connection, says touchy-feely MD... We can do that
prev story

Whitepapers

Why cloud backup?
Combining the latest advancements in disk-based backup with secure, integrated, cloud technologies offer organizations fast and assured recovery of their critical enterprise data.
A strategic approach to identity relationship management
ForgeRock commissioned Forrester to evaluate companies’ IAM practices and requirements when it comes to customer-facing scenarios versus employee-facing ones.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
New hybrid storage solutions
Tackling data challenges through emerging hybrid storage solutions that enable optimum database performance whilst managing costs and increasingly large data stores.