ccc 121 Prelim Exam

What is the main function of a CPU?

• Store data

• Process information

• Provide power supply

• Connect devices

Which of the following is NOT a functional block of a computer?

• Input Unit

• Central Processing Unit

• Output Unit

• Software

The ALU is responsible for performing:

• Only arithmetic operations

• Only logical operations

• Both arithmetic and logical operations

• Data storage operations

What is the purpose of the Control Unit in a CPU?

• To execute arithmetic operations

• To store data permanently

• To control and coordinate all operations

• To manage external devices

The function of registers in a CPU is to:

• Store data permanently

• Hold data temporarily for quick access

• Store system files

• Process network communication

hat is the primary function of the system bus?

• Power distribution

• Data communication between components

• Speed up processing

• Store programs

Which of the following is NOT a type of system bus?

• Data Bus

• Address Bus

• Control Bus

• Signal Bus

The memory used for temporary storage of frequently accessed data is called:

• Cache Memory

• Hard Disk

• Virtual Memory

• Register

Which type of RAM requires frequent refreshing?

• SRAM

• DRAM

• ROM

• Flash Memory

The memory that retains data even when the power is turned off is:

• RAM

• Cache Memory

• ROM

• Register