They’re measured differently. Storage makers usually use decimal units, where:

• 1 terabyte (TB) = 1,000 gigabytes (GB) = 1,000,000,000,000 bytes.
• Many operating systems display capacity in binary units (gibibytes, GiB), so 1 TB often appears as about 931 GB.

You’re not losing space; it’s just two ways of counting. The drive’s actual capacity remains the same, but the readout can vary based on how your device calculates and labels units. When you shop 1TB drives at Walmart, you’re looking at around one trillion bytes of storage, even if your device reports a slightly different number due to its unit system.

It’s a solid amount for everyday use. Actual numbers vary by quality and file size, but as a ballpark:

• Photos: ~200,000–300,000 images at ~3–5 MB each.
• Videos (1080p): roughly 200–300 hours at moderate bitrates.
• Videos (4K): from a dozen to ~60 hours, depending on compression and settings.
• Music: ~200,000 songs at ~5 MB per track.
• Games/Apps: about 10–20 modern titles if each is ~50–100 GB.

These estimates can help you decide if 1TB fits your needs for backups, media libraries, or gaming. If you expect lots of high-bitrate 4K video or many large games, you may want additional capacity.

Both store 1TB, but they behave differently:

• SSD (solid state): Faster loading and transfers, no moving parts, quieter, and typically more drop-resistant. Great for travel, frequent file access, and performance-focused tasks.
• HDD (hard drive): Often more affordable per gigabyte, suitable for large backups and storing big media libraries where top speed isn’t critical.

Consider your use: if you edit video on the go or want quicker app/game loads, an SSD can be helpful. For bulk storage and scheduled backups, an HDD may be a practical choice. Also check the connection (USB 3.x, USB-C) to match your devices. You can compare 1TB options and features on Walmart to find a good fit.

It often can, but compatibility depends on your device and format:

• Ports: Match the connector (USB-A or USB-C). Adapters may help if needed.
• File system: For cross-platform use, a format like exFAT is commonly supported. Device-specific formats may be required for certain systems.
• Consoles: Many support external USB storage for games or media, but capabilities vary by model and system software.
• Phones/tablets: Some support external drives via USB-C and a compatible adapter; app support may be required.

Check your device’s documentation for supported formats and maximum capacities. When in doubt, back up data, reformat the 1TB drive to a compatible file system, and safely eject to help protect files.

Getting started is straightforward:

1. Connect the drive to a high-speed port (USB 3.x or USB-C).
2. Initialize it if prompted, then open your system’s disk tools.
3. Format the drive to a file system your devices support (e.g., exFAT for broad compatibility). Name the volume so it’s easy to recognize.
4. Enable encryption and password protection if you plan to store sensitive files.
5. Test with a few files to confirm read/write behavior, then set up backups or libraries.

These steps can help the drive work smoothly across your devices, but results can vary by system and usage. Always keep a separate backup of important data and safely eject before disconnecting.