What does IDE (DMA mode 2) mean?

It refers to a legacy Parallel ATA data transfer mode allowing direct memory access with improved throughput and reduced CPU load compared to older modes.

What is the difference between megabyte per second (SI) and mebibyte per second?

Megabyte per second (SI) uses a decimal base of 1,000,000 bytes, whereas mebibyte per second is binary-based, equal to 1,048,576 bytes.

Why convert IDE (DMA mode 2) rates to megabyte per second (SI)?

This conversion helps users understand legacy transfer rates using a common modern standard suitable for performance reporting and comparisons.

How to Convert from IDE (DMA mode 2) to Megabyte/second (SI def.)?

Learn how to convert data transfer rates from IDE (DMA mode 2), a legacy PATA interface mode, to megabyte per second (SI definition) for standardized digital throughput representation.

IDE (DMA mode 2)

Megabyte/second (SI def.)

Please check your input. It must be a valid numeric value.

IDE (DMA mode 2) to Megabyte/second (SI def.) Conversion Table

IDE (DMA mode 2)	Megabyte/second (SI def.)

Custom Unit Conversion Table Generator – Instant Printable Conversion Tables

Start Value

Enter the starting number (positive decimal or integer ≥ 0). Example: 0.1, 1, 5.

End Value

Enter the ending number (positive decimal or integer > Start Value). Example: 10, 50, 100.

Interval

Enter the step size (positive decimal > 0 and < End Value – Start Value). Example: 1.0, 2.5.

IDE (DMA mode 2) to Megabyte/second (SI def.) Conversion Table
IDE (DMA mode 2)	Megabyte/second (SI def.)

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What Is This Tool?

This converter transforms data transfer rates expressed in IDE (DMA mode 2), a legacy Parallel ATA mode, into megabyte per second using the SI decimal standard. It helps translate older storage transfer speeds into modern, widely used units.

How to Use This Tool?

Enter the data transfer value in IDE (DMA mode 2) units.
Select IDE (DMA mode 2) as the source unit if not pre-selected.
Choose megabyte per second (SI def.) as the target unit.
Execute the conversion to obtain the rate in MB/s using the standard decimal definition.

Key Features

Converts IDE (DMA mode 2) transfer rates to megabytes per second (SI definition).
Uses a fixed conversion rate based on legacy interface specifications.
Facilitates comparison of older storage speed units with contemporary standards.
Browser-based and easy to use without requiring detailed technical knowledge.

Examples

2 IDE (DMA mode 2) equals 33.2 megabyte/second (SI def.).
0.5 IDE (DMA mode 2) equals 8.3 megabyte/second (SI def.).

Common Use Cases

Configuring or troubleshooting legacy PATA/IDE drives to confirm DMA mode usage.
Setting firmware or BIOS parameters related to IDE DMA transfer modes.
Benchmarking legacy storage device speeds for performance analysis.
Converting legacy transfer data for clearer reporting and comparison in decimal MB/s.

Tips & Best Practices

Always verify the current IDE transfer mode to ensure accurate conversions.
Use this tool to compare legacy device speeds alongside modern measurements.
Remember the distinction between decimal megabytes and binary-based units when interpreting results.

Limitations

IDE (DMA mode 2) is an older, legacy transfer mode not representative of modern interfaces.
Megabyte per second (SI) uses decimal units, which differ from binary units like mebibyte per second.
Actual transfer speeds can vary due to hardware and system conditions affecting the nominal rate.

Frequently Asked Questions

What does IDE (DMA mode 2) mean?: It refers to a legacy Parallel ATA data transfer mode allowing direct memory access with improved throughput and reduced CPU load compared to older modes.
What is the difference between megabyte per second (SI) and mebibyte per second?: Megabyte per second (SI) uses a decimal base of 1,000,000 bytes, whereas mebibyte per second is binary-based, equal to 1,048,576 bytes.
Why convert IDE (DMA mode 2) rates to megabyte per second (SI)?: This conversion helps users understand legacy transfer rates using a common modern standard suitable for performance reporting and comparisons.

Key Terminology

IDE (DMA mode 2): A Parallel ATA data transfer mode allowing direct data movement between device and memory with minimal CPU use, part of legacy PATA standards.
Megabyte/second (SI def.): A data transfer rate equal to one million bytes each second, using decimal units for measuring throughput.
DMA (Direct Memory Access): A feature that allows hardware to transfer data directly to or from memory without intensive CPU involvement.

Quick Knowledge Check

What does IDE (DMA mode 2) primarily provide compared to PIO modes?

Higher CPU overhead and lower throughput

Higher throughput and lower CPU overhead

No difference in performance

What quantity does one megabyte per second (SI) represent?

1,048,576 bytes per second

1,000,000 bytes per second

1024 bytes per second

Which of the following is a limitation of converting IDE (DMA mode 2) to megabyte per second (SI)?

IDE (DMA mode 2) is a current technology

Megabyte per second (SI) units differ from binary-based units

Conversion rate changes frequently

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