Camera comparison

I would like to offer you a brief comparison of the cameras of four handheld computers of different years of production: from quite modern to very rare.

The following devices were used in comparison:

  • Sony CLIE PEG-NX70V (2002)
  • Apple iPhone (2007)
  • Samsung Galaxy Note (2011)
  • Samsung Galaxy S21 Ultra (2021, only the main camera was used in the test)

The tests show that even 10 years ago, handheld computers received quite contrast, sharp and saturated cameras. But the main problem with these cameras was the weak dynamic range. Over the past 10 years, device engineers have been able to solve this problem as well. The current result is impressive, not to mention the ability to use multiple focal lengths.

Landscape photos (left to right: Sony NX70V, iPhone, Galaxy Note, Galaxy S21 Ultra):

Portrait photos (left to right: Sony NX70V, iPhone, Galaxy Note, Galaxy S21 Ultra):

Original photos taken on tested devices are available in the following galleries:

CPU replacement in Sony VAIO UX

Sony VAIO UX is one of the most outstanding, elegant, and powerful UMPC of the first epoch. Despite the quite wide range of models in the UX series and quite high prices, there was no dual-core version of the device. However, the device itself is 100% ready to work with a dual-core processorfor. Therefore it’s relatively easy to make a custom upgrade.

The gallery below represents the process of CPU replacement: the original Intel® Core™ Solo U1500 is replaced by Intel® Core™2 Duo U7700 (dual-core, 64-bit). The modding was made by a professional master Sergey (aka Freeqwer). Here is a video from Sergey of a similar modding made for another item: https://youtu.be/OcuwCzd7C0I.

According to my benchmarks, Core™2 Duo U7700 is actually two times faster than Core™ Solo U1500 when the application utilizes both cores. The new CPU has increased the power consumption of the device by 25% and the cooling system is able to handle the extra power without the device overheating.

Kohjinsha SR – a UMPC with internal DVD writer

When you think of removable storage media for handheld computers, something like the items presented in the previous blog post usually comes to mind: Removable storage and RAM for handheld computers.
But there is one UMPC that is notably different in this regard – this is the Kohjinsha SR (SR8KP06A). This 7-inch handheld is equipped with a CD/DVD writer.
Specifications of the device are available here.

Removable storage and RAM for handheld computers

In this post, I’d like to present you a small collection of removable cards and modules for handheld computers.

Front side:

Back side:

Left-to-right then top-to-bottom:

  • MultiMediaCard (MMC)
  • Secure Digital card (SD)
  • Nintendo 3DS card
  • Sony Memory Stick
  • Hewlett-Packard magnetic card for HP-67
  • Sony Universal Media Disc (UMD)
  • microSD card
  • Iomega PocketZip floppy disk
  • Memory Stick Micro card (M2)
  • MMCmobile card
  • Psion Organiser Datapak
  • CompactFlash memory card
  • miniSD card
  • DIP Pocket Memory Card – Bee Card (aka Credit Card Memory or CCM)
  • Psion Series 3 memory card
  • Elektronika removable RAM module for MK-90 (Электроника МПО-10)
  • PC Cards (aka Memory Card or a RAM Card)

Samsung Galaxy Fold 2 as the evolution of communicators

Samsung Galaxy Fold can be compared with devices like Sony Tablet P or Toshiba Libretto W100, because they fold into a tablet with two screens in the same plane.
But it is also quite appropriate to compare with communicators, whose external interface was used for phone calls, and the device itself was laid out to increase productivity. From this point of view, the Galaxy Fold is the result of more than 20 years of evolution of communicators.
The photos below reflect 24 years of the evolution of communicators, starting with Hewlett-Packard OmniGo700LX Communicator Plus (released in 1996) and ending with Samsung Galaxy Z Fold 2 (released in 2020).

Tools for data hoarders

I’m glad to present you my new article. This article describes UNIX utilities I use to collect information about handheld computers. You will find here tips how to clone websites, download webpages, YouTube videos, Google books, files from SourceForge, etc. Other collectors may find this overview interesting and useful, so I decided to share. Please note that I run all the mentioned utilities in GNU/Linux. I’ve no information whether they support other operating systems (Windows, macOS).

Read full article

The first handheld equipped with OLED display

Sony CLIE PEG-VZ90 is a remarkable Palm OS based device. It’s the first handheld equipped with an OLED screen. It was released 17 years ago. Today OLED displays are commonplace. All the best smartphone displays are made using this technology. But how does the first portable OLED screen look compared to typical LCDs of the same era? Let’s compare the PEG-VZ90 with four other devices of different classes, from low-end to high-end:

• Sharp Zaurus SL-C1000
• Sony CLIE PEG-UX50
• Palm Tungsten E2
• Qtek 9000

There is no doubt that an OLED screen provides the best picture quality. But Sharp’s CG Silicon LCD looks surprisingly good compared to the OLED screen.