Common units of storage questions and answers
Q1. What is a bit?
A1. A bit is a single binary digit.
Q2. What is a nibble?
A2. This is a grup of 4 bits.
Q3. What is a byte?
A3. This is a group of bits, usually considered to be 8 bits.
Q4. One Kilobyte is approximately 1000 bytes. How many bytes is it exactly? How did you work it out?
A4. 1024. (2 to the power 10).
Q5. Exactly how many bytes are 4 Gigabytes? How did you work it out?
A5. 4294967296 bytes 4 *(2 to the power 30).
Q6. Which is bigger, 20 Gigabytes or 4 Terabytes?
A6. 4 Terabytes is larger.
Q7. Write this number out in words using bytes not Megabytes: 3.4 Megabytes.
A7. Three million four hundred thousand bytes.
Q8. Write this number out in words using bytes not Gigabytes: 0.5 Gigabytes.
A8. Five hundred million bytes.
Q9. Which typically holds more storage, an SD card or a hard drive?
A9. Hard drives typically (but not always) hold more than an SD card.
Q10. If RAM is known as primary storage, what are devices like hard disks known as?
A10. Storage devices like hard drives are known as 'secondary storage' devices.