Question

1. which of the following is the fastest computer processing speed?

megabytes
gigahertz
bytes
megahertz

1. which of these computer data storage devices was invented to first?

hard drive
three and a half inch floppy disk
thumb drive
flash drive

Explanation:

For question 11:

• Megabytes is a unit of storage, not processing speed.
• Gigahertz ($1\ GHz = 10^{9}\ Hz$) and megahertz ($1\ MHz= 10^{6}\ Hz$) are units of frequency (processing speed). Since $1\ GHz>1\ MHz$, gigahertz represents a higher (faster) processing speed.
• Bytes is a unit of digital information storage.

For question 12:

• Hard drive (invented in 1956) was invented before three - and - a - half - inch floppy disk (1980s), thumb drive (late 1990s - early 2000s), and flash drive (similar to thumb drive in terms of later - stage invention compared to hard drive).

Answer:

1. gigahertz
2. hard drive