MemInfo.NET
This is the main content page of the MemInfo.NET help file.
Disclaimer
About
Version history
Background
Memory basics
Meaning of values
Meaning of drives
Warning levels
Offline drives
Disclaimer
THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.
THE AUTHOR DISCLAIMS ALL WARRANTIES, EITHER EXPRESS OR IMPLIED,
INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES.
MemInfo.NET is not in the public domain, I reserve all rights
to it. You may freely distribute copies of the Standard edition
or Trial version as long as you do so in an unmodified form and
include all files and documentation that are present in the
original archive. You may not charge for the distribution of
MemInfo.NET other than a reasonable fee to cover your
distribution costs.
See also
Main topic
About MemInfo.NET
Version history
Background
About
MemInfo.NET 3.3-SP1-Std
Author: Harald-René Flasch
mailto:hfr@hfrmobile.com
http://www.hfrmobile.com
See also
Main topic
Disclaimer
Version history
Background
Version history
The "Professional Edition" always includes all features of the "Standard Edition" plus
some special features which are only available with the "Professional Edition" of MemInfo.NET!
If not specified All: is assumed. If a feature is only available for the "Professional Edition"
this is indicated with Pro:
3.3-SP1-Std
- Pro: Fixed license form problem when using CF 3.5
- Pro: Fixed ObjectDisposedException problem when using CF 3.5
3.3
- Improved/fixed help
- Improved setup
- Internal improvements, refactoring, using HfrPdaTools 4.3
- Pro: Offline drives
3.2
- All: No official release
- Pro: Offline drives (experimental)
3.11
- Internal improvements
- Improved landscape support
3.1
- All: Applied hfrmobile style guide
- Pro: Warning Levels
3.1-RC1
- Classic MemInfo.NET is named "Standard Edition" now
- Supporting keys for scrolling drives
- Pro: Added all "Standard Edition" features
- Pro: Added drive selection/configuration
3.1-Preview1, Preview2b
- Preview1: Improved storage card enumeration
- Preview1: Improved support for WM2003
- Preview2: Some WM2003 fixes
- Preview2: Adjustments for hfrmobile style guide v1.3
3.0
- The third generation of MemInfo is based on the .NET Compact Framework (new product name is MemInfo.NET)
- Only PPC2002 and above (e.g. WM2003) are supported by MemInfo.NET
- If using an older device (e.g. Palm-Size PC with Windows CE 2.11) just use MemInfo 2.01
- Improved help
-
Automatically detects memory cards (e.g. Compact Flash cards (CF), Secure Digital cards (SD)) and Flash
Drives (e.g. LOOXstore or iPAQ File Store)
- Only English version available at the moment
2.01 (2nd Release)
- added support for H/PC (MIPS, SH3, SH4 and ARM)
2.01
- internal improvements
- added German version
- now supporting:
- Palm-size PC (MIPS and SH3)
- Pocket PC (MIPS, ARM and SH3)
- Virtual page optional
2.0
- changed version number format from "major.minor.buildnr" to "major.minor"
- improved design
- added this help
- added progress bar for % information
- moved menu to accessories
- fixed bug if there is no CF card
1.0.1
- first release on PocketPC-Spiele.de
- first release on hfrweb
1.0.0
See also
Main topic
About MemInfo.NET
Disclaimer
Background
Background
MemInfo.NET is based on MemInfo and WDrives.
MemInfo:
- MemInfo 2.01 (2nd Release) is the last MemInfo version
- MemInfo.NET 3.0 ist the first version based on the .NET Compact Framework
WDrives:
- WDrives is an application for desktop PC's which displays all drives and their usage
- The 32bit version of WDrives is based on the 16bit version
- WDrives 1.8 (1996, 1997) is the last 16bit version
- MemInfo.NET is the PDA version of WDrives
- MemInfo.NET is based on MemInfo 2.01
- Current WDrives version is 2.0 (build 031) which is also available at www.hfrmobile.com
See also
Main topic
Disclaimer
About MemInfo.NET
Version history
Memory basics
This topic describes commonly used storage media and memory units which are often used in mobile devices such as Pocket PCs, Smartphones, DigiCams etc.
Be aware that the size of the shown images has nothing to do with reality. Of
course a MiniSD card is smaller than a regular SD card.
Expansion Slots
CompactFlash
|
 CompactFlash (CF) cards are small, removable mass storage devices.
CF cards are an industry standard format that can be Type I or II. Type II is 5mm thick, Type 1 is 3.3mm thick.
Type I cards work in all slots, Type II requires a Type II compatible slot, due to its width.
CF cards are designed with flash technology, a non-volatile storage solution that does not require a battery to retain
data indefinitely. CF storage products are solid state, meaning they contain no moving parts, and offer much greater data
protection than conventional magnetic disk drives.
The expansion card slot will also accept I/O devices based on the industry standard CF format such as wireless modems,
modems, Ethernet, serial, digital phone cards, laser scanners, Bluetooth wireless, etc.
While surfing the internet I found CF cards from 16 MB, 32 MB, 64 MB, 128 MB, 256 MB,
512 MB, 1 GB, 2 GB up to 8 GB(!)
|
MicroDrive
|
 The MicroDrive needs a CF Type II
slot. Warning: These devices draw battery power, and some run hot. A MicroDrive
is simply a "mini hard disc" with moving parts inside. Be aware of this if using
it in a rough environment.
|
Secure Digital
|
 Secure Digital (SD) memory cards are next generation memory devices that offer an incredible combination of high
storage capacity and data security. SD cards are the size of a postage stamp, 32mm x 24mm, and a only 2.1mm thick.
One SD slot can generally be used for either Secure Digital or MMC cards.
SD cards are non-volatile, solid-state, and require no battery power to operate. SD cards feature unique,
proprietary security functions that have been incorporated into the card's controller, facilitating the secure
distribution of content to devices. In addition, the card features a physical protection tab on its outer edge,
providing users with an easy way to ensure their data is write-protected. Newer devices have expansion card slots
which also accept I/O devices (SDIO).
There exits also SD Ultra cards which are usually used by professionals (e.g.
photographs with their high-end digital cameras). SD Ultra is compatible to devices which can use SD
cards. Minimum read: 9 MB/second. Minimum write: 10 MB/second!
|
MiniSD
|
 Similar to regular SD cards but
smaller. A MiniSD card is 20 x 21,5 x 1,4 mm small.
MiniSD cards are approximately 60% smaller than regular SD cards. This kind of
storage card has the same advantages like their big brothers. MiniSD cards are
commonly used in Smartphones. There exists adapters which make it possible to
use MiniSD cards in regular SD card slots. Usually manufacturers automatically
provide this adapter when buying a MiniSD card.
Maybe Pocket PCs with a MiniSD card slot (or two?) are available in the near
future. Some Smartphones already using MiniSD.
|
MicroSD
|
 The MicroSD card, expected to be the world's smallest
memory card and measuring just 11mm x 15mm x 1mm, will be completely compatible with SanDisk Corporation's
TransFlash format. The MicroSD card offers the advantages of SD compatibility for use
with a host of SD- and MiniSD-enabled products.
Features:
- Specifically designed for mobile phones
- Fully compatible with hosts that use SD or miniSD Memory Cards
- SD Adaptor available so users can insert into standard SD card slot
|
MultiMediaCard
|
 MultiMediaCard (MMC) is an industry standard high storage capacity device the size of postage stamp, weighing
less than two grams. MMC cards are non-volatile, solid-state and require no battery power to operate.
|
Memory
Memory - ROM
|
ROM stands for Read Only Memory. The information in this memory is generally "burned" into the chip one time,
at the factory. Often in the PDA world, it holds the operating system. ROM memory is fast to start up and fast to
load, and more "durable" (less prone to corruption) than RAM.
|
Memory - RAM
|
RAM stands for Random Access Memory. This generally refers to memory that is like a tablet and an eraser - you can
write anything you want on it and re-use it many times. Generally, RAM is "volatile," meaning that when the electricity
is turned off, the memory is erased. Some electronics devices have "non-volatile" RAM and recover their contents when
turned off and back on.
|
Memory - Flashable ROM
|
"Flashable" ROM is ROM that can be "re-burned" or "flashed." This is a form of "investment protection" - the operating
system can be updated without having to buy a new PDA, or having to remove and replace the ROM chips.
|
THE INFORMATION ON THIS PAGE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND!
See also
Main topic
Meaning of values
Meaning of drives
Meaning of values
This topic describes the values which are displayed for each drive.
Total
This is the whole size of the drive. Where drive can be a storage card (e.g. CF, SD,
etc.), flash drive (e.g. iPAQ file store, LOOXstore etc.), RAM or whatever.
Information for storage cards:
The Total size which is displayed may differ
from the size which is printed on the storage card itself. For example a 256 MB CF card
is displayed as 247,47 MB. This may have several reasons: FAT (File
Allocation Table - needed to organize the storage of folders and
files), Sector size (depends how the card is formatted - Smallest piece
that is used to store a part of a file), Bad sectors (sectors that cannot
be used), ISO standard (International Standardization Organization
- The MB size of the storage card may be calculated using a factor of 1000
instead of 1024).
1 MB are 1048576 Bytes (1024*1024 = 2 ^ 10). This is because digital information
is stored as bits (where a bit can have the value 0 or 1). So the base of such
numbers is 2. Info: 2 ^ 10 = 1024. If IT people say 1 MB ("Mega Byte") they mean
of course 1048576 Bytes. But ISO says the prefix "Mega" stands for a million
(1000000) which is of course also correct... But if storage cards are sold where
the factor 1000 is used manufacturers should produce 200 MB or 300 MB storage
cards not 256 MB. If I read 256 MB I assume that the factor 1024 was used...
Used
Used space on the drive.
Free
Free space on the drive.
The percentage value shows you how many percent of a drive is used. 0% means
the the drive is empty, 100% if it is full.
See also
Main topic
Memory basics
Meaning of drives
Meaning of drives
This topic describes all drives which can be display with MemInfo.NET. Since Version 3.1 RC1 MemInfo.NET
exists in two editions: "Standard" and "Professional". The "Professional"
edition provides some more drive types as currently listed here.
Programs (RAM)
Memory for program execution. To free memory close applications. The (x) usually hides an application but does not free memory.
If you really like to close an application you may use Switch which is an application switcher which also can close
applications. Switch is also available at www.hfrmobile.com! This kind of memory is built in your mobile device.
Data (RAM)
Memory which is used to store files e.g. the \My Documents folder.
This kind of memory is built in your mobile device.Flash drive
A flash drive will be displayed depending on manufacturer and device name (e.g.
Pocket LOOX has a "LOOXstore", iPAQ an "iPAQ File store").
Some (older) devices with an older OS (operating system) version may not have a
flash drive.
This kind of memory is built in your mobile device.
CF Card
Compact Flash card (CF) or MicroDrive. See also Memory basics.
SD Card
Secure Digital card (SD) MultiMedia card (MMC). See also Memory basics.
THE INFORMATION ON THIS PAGE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND!
See also
Main topic
Memory basics
Meaning of values
Warning levels
The professional edition of MemInfo.NET supports so called "Warning levels" which displays the memory bars
in a different color if they exceed pre-configured values.
0% - 79%
Low/normal to medium memory usage will be displayed with blue color.
80% - 94%
Medium to maximum memory usage will be displayed with yellow color.
95% - 100%
Maximum memory usage will be displayed with red color.
Above values and colors are standard settings. These settings can be changed using Skins or a registry editor. If you change
the values using a registry editor to it at your own risk! MemInfo.NET Skins can be downloaded at www.hfrmobile.com!
See also
Main topic
Offline drives
Since Version 3.2-Pro MemInfo.NET Professional Edition allows you to display storage cards when they are not inserted.
Often users have two or more storage cards but their devices usually have only one slot for a storage card. So user often
forget how many storage is available on the other storage cards which are not currently inserted into the device. This feature
will help you to have a good overview over all your storage cards.
Info
~ will be displayed when a drive is a removable drive
* will be displayed when a removeable drive is inserted
Tip
Put a file named CECOPY.ID to the root directory of each storage card. This file should contain only a single
line of text which is used as the unique name of the storage card
See also
Main topic