A
This type of RAM needs to be refreshed thousands of times per second
DRAM
This type of RAM is faster and does not need refreshing.
SRAM
This ROM is permanently programmed during manufacturing.
PROM
This ROM type can be erased and reprogrammed electronically, even while inside the computer.
EEPROM
This type of storage uses spinning magnetic platters to record data.
HDD
This type of storage is non-volatile and stores data using floating gate transistors.
flash memory stick
SRAM is mainly used here in
cache memory
What is EPROM?
This ROM can be erased by ultraviolet light and then reprogrammed.
Give one reason why DRAM is cheaper to manufacture than SRAM
Fewer transistors per cell / simpler design
The two types of logic gate used in flash memory design.
NAND and NOR.
Why was EPROM less practical than EEPROM in modern systems?
Needed UV light & removal from device; EEPROM can be erased electrically inside the system.
Why do SSDs generally have faster access times than HDDs?
No moving parts; data accessed electronically instead of mechanically.
Which would be better for an archival backup: SSD, HDD, or optical disc? Explain.
Optical disc/HDD → SSD has limited lifespan; optical discs or HDDs better for long-term storage.
Why is HDD still used in servers despite SSD being faster?
Higher storage capacity, better for sequential storage, reliable for bulk data.
Compare RAM and ROM in terms of volatility, purpose, and typical use cases.
RAM: volatile, temporary workspace for running programs. ROM: non-volatile, stores firmware and essential instructions.
This device in the headset helps detect head movement.
Gyroscope
What type of sound system makes audio appear to come from different directions?
Binaural sound
In a 3D printer, what happens to each layer after it is printed to make it solid?
A fan cools it
This type of touchscreen uses electric fields between glass layers.
Capacitive touch screen
This type uses pressure between polyester and glass.
Resistive touch screen
This thin part of a microphone vibrates when sound waves hit it.
Diaphragm
Which part of the printer is given a positive charge before being scanned by a laser?
Drum
Why are resistive touch screens still used in places like ATMs or ordering kiosks?
They work with gloves, stylus, or pressure (not just bare fingers)
BONUS
BONUS
This part of the speaker is attached to the coil and pushes air to make sound.
Cone