What does IDE (UDMA mode 4) mean?

IDE (UDMA mode 4) refers to a Parallel ATA transfer mode known as Ultra DMA/66, offering a theoretical maximum throughput of about 66.7 megabytes per second using an 80-conductor cable.

What is modem (1200) speed?

Modem (1200) represents a legacy modem speed of approximately 1,200 bits per second, commonly used in early dial-up telecommunications systems.

Why convert between IDE speeds and modem speeds?

Converting between these units helps compare fast internal storage speeds to much slower telecommunications speeds, useful in legacy hardware maintenance and technology history.

Convert IDE (UDMA mode 4) to Modem (1200) Data Transfer Units

Easily convert data transfer speeds from IDE (UDMA mode 4) to modem (1200) units using our online converter. Understand legacy device speed comparisons between hard drives and early modems.

IDE (UDMA mode 4)

Modem (1200)

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IDE (UDMA mode 4) to Modem (1200) Conversion Table

IDE (UDMA mode 4)	Modem (1200)

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Start Value

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End Value

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IDE (UDMA mode 4) to Modem (1200) Conversion Table
IDE (UDMA mode 4)	Modem (1200)

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What Is This Tool?

This tool allows you to convert data transfer rates from IDE (UDMA mode 4), a storage interface speed, to modem (1200), a legacy serial modem speed. It helps compare fast internal drive speeds with much slower historical modem transmission rates.

How to Use This Tool?

Enter the value in IDE (UDMA mode 4) units you want to convert
Select the source unit as IDE (UDMA mode 4) and target unit as modem (1200)
Click the convert button to see the equivalent data transfer rate in modem (1200)

Key Features

Converts data transfer units between IDE (UDMA mode 4) and modem (1200)
Supports legacy hardware and telecommunications speed comparisons
Browser-based and user-friendly interface
Displays conversions using established theoretical throughput rates

Examples

2 IDE (UDMA mode 4) units convert to 880,000 modem (1200) units
0.5 IDE (UDMA mode 4) units convert to 220,000 modem (1200) units

Common Use Cases

Comparing internal hard drive speeds to early dial-up modem rates
Benchmarking or maintaining legacy computer and telecommunications equipment
Understanding or translating speeds for vintage computing and data recovery
Studying legacy technology performance in telecommunications or storage

Tips & Best Practices

Remember the conversion is theoretical and compares very different technologies
Use this tool for benchmarking and educational purposes rather than exact performance metrics
Consider differences in units: IDE rates are in bytes/second, modems in bits/second

Limitations

Conversion shows approximate theoretical throughput, not real-world speeds
IDE and modem speeds differ fundamentally in measurement units and technology
Actual transfer rates can vary due to hardware, protocol overhead, and signal quality

Frequently Asked Questions

What does IDE (UDMA mode 4) mean?: IDE (UDMA mode 4) refers to a Parallel ATA transfer mode known as Ultra DMA/66, offering a theoretical maximum throughput of about 66.7 megabytes per second using an 80-conductor cable.
What is modem (1200) speed?: Modem (1200) represents a legacy modem speed of approximately 1,200 bits per second, commonly used in early dial-up telecommunications systems.
Why convert between IDE speeds and modem speeds?: Converting between these units helps compare fast internal storage speeds to much slower telecommunications speeds, useful in legacy hardware maintenance and technology history.

Key Terminology

IDE (UDMA mode 4): A Parallel ATA transfer mode also called Ultra DMA/66, offering about 66.7 MB/s transfer rate.
Modem (1200): A legacy modem speed representing roughly 1,200 bits per second in early dial-up systems.
Throughput: The rate at which data is successfully transferred from one place to another.

Quick Knowledge Check

What is the maximum theoretical throughput of IDE (UDMA mode 4)?

About 1,200 bits per second

About 66.7 megabytes per second

About 120 megabits per second

What does modem (1200) speed measure?

Data transfer rate over an 80-conductor cable

Nominal data rate of about 1,200 bits per second

Maximum throughput of a PATA drive

Why is the IDE to modem conversion not a direct equivalence?

Because modem speeds are measured in bytes per second

Because they are very different technologies with different units

Because IDE uses serial communication only

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