KwickClips Computer Systems · 44 sec · free
Which memory keeps data with the power off?
Short answer. ROM.
How is EPROM erased?
With ultraviolet light.
Types of ROM
| Type | Erased by | Rewrite? |
|---|---|---|
| PROM | Cannot | No |
| EPROM | UV light | Yes |
| EEPROM | Electricity | Yes |
Remember
| PROM: write once |
| EPROM: UV erase |
| EEPROM: electric erase |
Which memory keeps data with the power off? ROM is non volatile. PROM is written once. EPROM is erased by ultraviolet light. EEPROM is erased electrically. Remember. PROM writes once. EPROM uses UV. EEPROM uses electricity.
This clip is from the full lesson: Primary Memory: RAM, ROM and Cache — 8 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 9 Computer Applications (165), CBSE Class 9 Computer Applications (165), CBSE Class 10 Information Technology (402), CBSE Class 11 Computer Science (083)
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