What does IDE (UDMA mode 1) represent?

It is an Ultra DMA transfer mode of the Parallel ATA interface used in older PATA devices, offering a max theoretical rate of about 25 MB/s.

What is the definition of gigabyte/second (SI def.)?

It’s a data rate unit where 1 gigabyte equals 10^9 bytes transferred each second, using decimal SI prefixes.

Why convert from IDE (UDMA mode 1) to gigabyte/second?

To compare legacy transfer rates with modern standards, improving benchmarking and understanding of hardware performance.

How to Convert from IDE (UDMA mode 1) to Gigabyte/second (SI def.)?

Learn how to convert data transfer rates from the legacy IDE (UDMA mode 1) interface to the modern gigabyte per second unit based on SI definitions. Understand usage contexts and practical steps.

IDE (UDMA mode 1)

Gigabyte/second (SI def.)

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

IDE (UDMA mode 1) to Gigabyte/second (SI def.) Conversion Table

IDE (UDMA mode 1)	Gigabyte/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 (UDMA mode 1) to Gigabyte/second (SI def.) Conversion Table
IDE (UDMA mode 1)	Gigabyte/second (SI def.)

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What Is This Tool?

This converter helps translate data transfer speeds from IDE (UDMA mode 1), a vintage transfer mode for Parallel ATA devices, into gigabytes per second (SI definition), a contemporary data throughput metric using decimal prefixes.

How to Use This Tool?

Enter the value representing your data transfer rate in IDE (UDMA mode 1) units.
Select IDE (UDMA mode 1) as the source unit and gigabyte/second (SI def.) as the target unit.
Perform the conversion to obtain the equivalent throughput in gigabytes per second.

Key Features

Converts IDE (UDMA mode 1) transfer rates to gigabyte/second (SI def.) consistently.
Uses a clear conversion based on the standard 1 IDE (UDMA mode 1) = 0.025 gigabyte/second ratio.
Supports benchmarking and performance comparison between legacy and modern transfer units.
Browser-based tool accessible anywhere without installation.

Examples

4 IDE (UDMA mode 1) equals 0.1 gigabyte/second (4 × 0.025 = 0.1).
10 IDE (UDMA mode 1) converts to 0.25 gigabyte/second (10 × 0.025 = 0.25).

Common Use Cases

Diagnosing and setting transfer modes on vintage PCs using old PATA drives.
Benchmarking older IDE hard disk drives or optical drives performance.
Comparing legacy transfer speeds with modern data center or network throughput units.
Assisting in troubleshooting IDE drive and controller compatibility issues.

Tips & Best Practices

Use the converter to benchmark old hardware relative to current standards for accurate context.
Ensure consistent unit definitions when comparing gigabytes based on SI and binary systems.
Remember legacy transfer rates are theoretical maximums; real performance varies.
Apply this conversion to clarify communication about data transfer speeds between device generations.

Limitations

Conversion reflects theoretical max speeds; actual throughput can be lower on legacy IDE devices.
Gigabyte/second here uses SI decimal definitions, different from binary-based gigabytes.
Real-world factors like hardware state, cable quality, and protocol overhead are not considered in the calculation.

Frequently Asked Questions

What does IDE (UDMA mode 1) represent?: It is an Ultra DMA transfer mode of the Parallel ATA interface used in older PATA devices, offering a max theoretical rate of about 25 MB/s.
What is the definition of gigabyte/second (SI def.)?: It’s a data rate unit where 1 gigabyte equals 10^9 bytes transferred each second, using decimal SI prefixes.
Why convert from IDE (UDMA mode 1) to gigabyte/second?: To compare legacy transfer rates with modern standards, improving benchmarking and understanding of hardware performance.

Key Terminology

IDE (UDMA mode 1): A legacy Ultra DMA mode of the Parallel ATA interface defining a max raw transfer rate around 25 MB/s for older PATA drives.
Gigabyte/second (SI def.): A data transfer rate unit where 1 gigabyte equals 10^9 bytes per second, using decimal-based SI prefixes.
UDMA: Ultra Direct Memory Access, a transfer mode protocol used in IDE interfaces to improve data throughput and error management.

Quick Knowledge Check

What is the theoretical max raw transfer rate of IDE (UDMA mode 1)?

About 100 MB/s

About 25 MB/s

About 1 GB/s

How many bytes per second does 1 gigabyte/second (SI def.) represent?

1 × 10^9 bytes/s

1 × 2^30 bytes/s

1 × 10^6 bytes/s

What is the conversion factor from IDE (UDMA mode 1) to gigabyte/second (SI def.)?

0.5

0.025

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