What does IDE (UDMA mode 4) refer to?

IDE (UDMA mode 4), also known as Ultra DMA/66, is a transfer mode used in Parallel ATA drives that offers fast data movement between a drive and host using an 80-conductor IDE cable.

What is a modem (14.4k)?

A 14.4k modem is a dial-up device operating over analog phone lines that transfers data at a maximum of 14.4 kbps by modulating digital signals into analog and vice versa.

Why convert between these two units?

This conversion helps users understand the speed differences between legacy hard drives and dial-up modems, useful for comparisons, documentation, or retro computing contexts.

How to Convert from IDE (UDMA mode 4) to Modem (14.4k)?

Convert data transfer rates between IDE (UDMA mode 4) and modem (14.4k) units. Understand the relationship between fast IDE/ATA transfers and slower dial-up modem speeds for legacy system comparisons.

IDE (UDMA mode 4)

Modem (14.4k)

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IDE (UDMA mode 4) to Modem (14.4k) Conversion Table

IDE (UDMA mode 4)	Modem (14.4k)

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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 4) to Modem (14.4k) Conversion Table
IDE (UDMA mode 4)	Modem (14.4k)

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What Is This Tool?

This unit converter allows you to translate data transfer speeds from IDE (UDMA mode 4), a fast PATA hard drive transfer standard, to modem (14.4k), a classic dial-up modem speed. It helps compare throughput rates between these different technologies.

How to Use This Tool?

Enter a value representing the data transfer rate in IDE (UDMA mode 4) units
Select IDE (UDMA mode 4) as the input unit and modem (14.4k) as the output unit
Click the convert button to see the equivalent modem (14.4k) value
Review the result to understand the relative transfer speed

Key Features

Converts between IDE (UDMA mode 4) and modem (14.4k) data transfer units
Provides a clear understanding of speed differences between storage and dial-up communication methods
Supports quick conversions for legacy computing and telecommunication comparisons
Browser-based and user-friendly tool for easy data rate translation

Examples

2 IDE (UDMA mode 4) converts to 73333.333333334 modem (14.4k)
0.5 IDE (UDMA mode 4) converts to 18333.333333334 modem (14.4k)

Common Use Cases

Comparing early PC hard drive transfer speeds with dial-up modem rates
Legacy system maintenance and data recovery for older PATA/IDE hardware
Benchmarking and documenting retro computing data rates
Analyzing telecommunications history and modem performance limits

Tips & Best Practices

Use this tool to gain perspective on how modem speeds compare to older hard drive transfers
Remember that IDE (UDMA mode 4) reflects burst transfer rates, not constant throughput
Consider limitations due to analog telephone line conditions when interpreting modem speeds
Utilize the conversion to assist legacy system integration or technical documentation

Limitations

The conversion is theoretical and does not reflect real-world performance differences fully
IDE (UDMA mode 4) measures burst rates in megabytes per second, while modem (14.4k) is in kilobits per second over analog lines
Practical transfer speeds on modems vary due to line quality and protocol overhead, limiting direct equivalence
Differences in hardware and communication media affect comparability

Frequently Asked Questions

What does IDE (UDMA mode 4) refer to?: IDE (UDMA mode 4), also known as Ultra DMA/66, is a transfer mode used in Parallel ATA drives that offers fast data movement between a drive and host using an 80-conductor IDE cable.
What is a modem (14.4k)?: A 14.4k modem is a dial-up device operating over analog phone lines that transfers data at a maximum of 14.4 kbps by modulating digital signals into analog and vice versa.
Why convert between these two units?: This conversion helps users understand the speed differences between legacy hard drives and dial-up modems, useful for comparisons, documentation, or retro computing contexts.

Key Terminology

IDE (UDMA mode 4): A Parallel ATA transfer mode using Ultra DMA to move data blocks at up to about 66.7 MB/s, requiring an 80-conductor cable for stability.
Modem (14.4k): A dial-up modem with a maximum data rate of 14.4 kbps that modulates digital signals over analog telephone lines.
Burst Transfer Rate: A peak data transfer speed over a short time interval within a hardware interface.

Quick Knowledge Check

What type of cable is required for IDE (UDMA mode 4) transfers?

Standard 40-conductor IDE cable

80-conductor IDE cable

USB cable

What is the maximum raw data transfer rate of a 14.4k modem?

14.4 megabits per second

14.4 kilobits per second

144 kilobits per second

Why is the conversion between IDE (UDMA mode 4) and modem (14.4k) considered theoretical?

Because both measure burst transfer speeds identically

Because modem speeds depend on telephone line conditions and protocol overhead

Because both units use the same physical media

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