Answer:
1. Compact Discs CD
Made in 1982, Compact Discs CDs are one of the oldest forms of external memory. At the time, it was impressive how CDs were able to store up to 700 megabytes MB.
2. External Hard Drives
One of the more common external memory devices in this day and age are external hard drives. An external hard drive is similar to a hard drive you’d find in a computer.
3. Memory Card
Memory cards are smaller and thinner external memory that users usually store in other devices. The most common types of memory cards are CompactFlash, a Memory Stick, an SD Card, and the Picture Card.
