9618 ch 3 hardware v1

1. What is the main function of RAM in a computer?

• Temporary storage
• Permanent storage
• Data processing
• Power supply
• External storage

2. Which type of memory needs to be constantly refreshed?

• SRAM
• PROM
• EPROM
• DRAM
• EEPROM

3. What is a characteristic of ROM?

• Volatile
• Rewritable
• Non-volatile
• High speed
• Temporary

4. Which logic gate outputs true if both inputs are true?

• NOT
• AND
• OR
• NAND
• XOR

5. What is the purpose of a truth table in logic circuits?

• To store data
• To process data
• To display output
• To show possible outcomes
• To refresh memory

6. What distinguishes a laser printer from an inkjet printer?

• Uses liquid ink
• Prints whole page in one go
• Uses a print head
• Requires constant refilling
• Portable

7. Which storage device uses spinning disks?

• SSD
• Flash memory stick
• HDD
• Memory card
• Optical storage

8. What is the main advantage of SRAM over DRAM?

• Cheaper
• Higher capacity
• Faster data access
• Needs refreshing
• Consumes more power

9. What is EEPROM?

• Electrically Erasable Programmable Read-Only Memory
• Dynamic Random Access Memory
• Static Random Access Memory
• Programmable Read-Only Memory
• Read-Only Memory

10. What is the use of an ADC in a microprocessor-controlled system?

• Convert digital to analog
• Store data
• Process instructions
• Convert analog to digital
• Refresh memory