32-Bit vs. 64-Bit - What Are Bits? Why Are They Important?
15,96132-bit vs. 64-bit. Which is “better”? What are the differences? Heck… what are bits, anyway? All of these questions, and more, will be answered in today’s TidBytes video! For addition info, look below in the addendum…
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ADDENDUM (additional information about this topic is here for you!)
1. Small correction on the vacuum tubes. I used them as a visual aid, but technically it's a dual triode tube, so it's not "1-bit" per se. But you get the idea. Additionally, there's always electricity in the tube when the computer is on. This particular tube works for like a gate.
2. BINARY MATH: Each binary digit represents a power-of-2 whole number. If you have a byte (8 bits), that means your first bit represents 1, your second represents 2, then 4, 8, 16, 32, 64, and 128. Keep in mind, the numbers increase right to left. If a “1” is present, that represented number is added. If a “0” is present, the number is not added. So, 00001100 = 12. 10000001 = 129. 11111111 = 255.
3. GB vs. GiB: In short…
GB is the user-friendly measurement.
GiB is the computer-friendly measurement because data sizes are based on power-of-two values.
Gigabytes (GB) and gibibytes (GiB) are different, but GiB are commonly referred to as GB in conversation. Some operating systems refer to a GiB as a GB. 1 GB = 1,000,000,000 bytes, but 1 GiB = 1,073,741,824 bytes (1024^3). This is because GiB (KiB, MiB, etc) use powers of 2—1, 2, 4, 8, 16, 32, 64, 128, 256, and so on. Since regular computers (not quantum computers, or anything like that) use binary, we need to add these numbers in base-2, so the computer actually knows what the heck is going on. Adding in base-10 is more user-friendly and clean looking, but base-2 is what binary math uses. This is why, depending on how your OS and hardware interpret file size, your “500 GB” hard drive may read as “465.66 GB” (which is truly GiB).
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