What does modem (28.8k) measure?

It measures a data transfer rate of approximately 28,800 bits per second typical of dial-up analog telephone-line connections.

What is IDE (PIO mode 3)?

IDE (PIO mode 3) is a CPU-driven programmed I/O transfer mode for Parallel ATA/IDE devices with a theoretical maximum throughput around 11.1 megabytes per second.

Why convert between these two units?

To compare legacy data transfer rates from dial-up modems to older storage device speeds for performance analysis, retrocomputing, or embedded system interfacing.

How to Convert from Modem (28.8k) to IDE (PIO mode 3)?

Learn how to convert data transfer rates from a 28.8k dial-up modem to IDE (PIO mode 3) storage device throughput, enabling comparisons between legacy communication and storage technologies.

Modem (28.8k)

IDE (PIO mode 3)

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Modem (28.8k) to IDE (PIO mode 3) Conversion Table

Modem (28.8k)	IDE (PIO mode 3)

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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.

Modem (28.8k) to IDE (PIO mode 3) Conversion Table
Modem (28.8k)	IDE (PIO mode 3)

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What Is This Tool?

This unit converter helps you transform data transfer rate measurements from modem (28.8k) speeds, typical of old dial-up connections, to IDE (PIO mode 3) throughput, which is used in older storage devices. It allows users to compare and understand different types of legacy data transfer rates.

How to Use This Tool?

Enter the data transfer value in modem (28.8k) units
Select the target unit as IDE (PIO mode 3)
Click convert to obtain the equivalent throughput
Review the result for historical comparison or performance analysis

Key Features

Converts data transfer rates between modem (28.8k) and IDE (PIO mode 3) units
Supports legacy technology comparisons and performance evaluations
Browser-based and easy to use for quick unit conversions
Provides clear unit definitions and practical use cases
Useful for retrocomputing and embedded system assessments

Examples

1 Modem (28.8k) equals approximately 0.0003243243 IDE (PIO mode 3)
10 Modem (28.8k) correspond to about 0.003243243 IDE (PIO mode 3)

Common Use Cases

Estimating download times over classic dial-up modem connections
Comparing legacy modem speeds such as 14.4k, 28.8k, and 56k
Evaluating performance differences between dial-up rates and IDE storage throughput
Retrocomputing and testing historical computer data transfer methods
Embedded system development with older storage interfaces lacking DMA support

Tips & Best Practices

Always consider the context, as units measure different transfer types (bits vs bytes)
Use the tool for approximate comparisons rather than exact equivalence
Factor in real-world conditions when interpreting results since overhead is not included
Employ the converter for educational or legacy system evaluations
Cross-reference with performance testing when possible for accurate assessments

Limitations

The units represent distinct transfer methods—modem rates are bits per second, IDE throughput is bytes per second
Direct equivalence may be limited due to differing data transfer mechanisms
Conversion excludes overheads, error correction, and protocol efficiencies impacting actual speeds
IDE (PIO mode 3) throughput is theoretical and actual transfer rates can vary with system conditions

Frequently Asked Questions

What does modem (28.8k) measure?: It measures a data transfer rate of approximately 28,800 bits per second typical of dial-up analog telephone-line connections.
What is IDE (PIO mode 3)?: IDE (PIO mode 3) is a CPU-driven programmed I/O transfer mode for Parallel ATA/IDE devices with a theoretical maximum throughput around 11.1 megabytes per second.
Why convert between these two units?: To compare legacy data transfer rates from dial-up modems to older storage device speeds for performance analysis, retrocomputing, or embedded system interfacing.

Key Terminology

Modem (28.8k): An informal term for a data transfer rate of about 28.8 kilobits per second representing speeds of 28.8k dial-up modems over analog telephone lines.
IDE (PIO mode 3): A CPU-driven programmed I/O transfer mode for Parallel ATA/IDE devices defined by ATA standards, with a theoretical maximum throughput near 11.1 megabytes per second.
Data Transfer Rate: The amount of digital data transmitted per unit of time, measured in bits per second or bytes per second depending on the context.

Quick Knowledge Check

What type of connection does modem (28.8k) represent?

A parallel ATA storage connection

A dial-up analog telephone-line data transfer

A USB 2.0 high-speed transfer

What is a key characteristic of IDE (PIO mode 3)?

Uses DMA for data transfers

CPU-driven programmed I/O with theoretical max throughput ~11.1 MB/s

Wireless data transmission standard

Why should overhead and protocol efficiencies be considered when converting?

Because they enhance theoretical speeds

Because they can affect actual real-world throughput measurements

Because they eliminate the need for conversion

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