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-Pro

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-Pro

3.3

3.2

3.11

3.1

3.1-RC1

3.1-Preview1, Preview2b

3.0

2.01 (2nd Release)

2.01

2.0

1.0.1

1.0.0

See also

Main topic

About MemInfo.NET

Disclaimer

Background


Background

MemInfo.NET is based on MemInfo and WDrives.

MemInfo:

WDrives:

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