BASIC COMPUTER STRUCTURE COMPUTER OPERATION

What is a key benefit of EPROM compared to RAM?. It has an infinite life span. Data can be overwritten and is non-volatile. Has faster access times.

Which type of RAM has faster access times?. STATIC RAM. Slower than DYNAMIC RAM. Is equal to DYNAMIC RAM.

Why is the address bus unidirectional?. Sends data both ways. Only receives from memory. Only sends addresses from CPU.

What makes EEPROM beneficial in embedded systems?. Limited life span. Requires UV light. Can be electrically erased.

In a microprocessor, the address bus is. Bidirectional. Unidirectional. A high-speed bus.

Which RAM type does not need refreshing?. EPROM. SRAM. DRAM.

Which type of memory is rewritable without removal?. PROM. ROM. EEPROM.

Which memory type offers the quickest access?. SRAM. DRAM. EEPROM.

Why is a serial bus used in aircraft?. No need for data conversion. Allows parallel communication. Reduces weight and size of cabling.

What defines a random access memory device?. Sequential access. Equal ease of data retrieval. Parallel access.

What does the address bus carry?. Memory addresses. Input/output data. Instruction sets.

Which bus transmits control instructions?. Control bus. Data bus. Address bus.

Why is DRAM often used over SRAM?. It operates faster. It has a higher storage density. It does not need refreshing.

What limits UV-erasable EPROM usage?. It’s cheap. Erasure takes longer. Volatile memory.

What happens to PROM once programmed?. Cannot be modified. Can be refreshed. It is erased.

What is a limitation of DRAM?. It is faster than EEPROM. Needs regular refreshing. It cannot store large amounts.

What is a drawback of parallel buses in aircraft?. Lower cost. Bulky and heavy cabling. Limited bandwidth.

Why is RAM important in CPU operations?. It only supports sequential access. It stores programs permanently. It allows direct access to data.

What is the main advantage of EEPROM over EPROM?. Requires UV light for erasure. Does not need refreshing. Can be erased using an electrical charge.

What is the main disadvantage of SRAM?. Cheaper to manufacture. Needs constant refreshing. Lower capacity per chip.

Which of the following needs refreshing to retain data?. DRAM. SRAM. EPROM.

In a microprocessor, the data bus is: Unidirectional. Bidirectional. Serial-only.

Why is EPROM considered more useful than PROM?. Does not need refreshing. Can be reprogrammed. It is cheaper.

How does the control bus support a CPU?. Stores address information. Transmits user data. Directs timing and control signals.

Which memory type is commonly used for firmware?. DRAM. EPROM. SRAM.

What’s true about ROM memory?. It retains data without power. It needs frequent refreshing. It is used as cache memory.

Which memory keeps data after power loss?. SRAM. ROM. DRAM.

What is true of a bidirectional data bus?. Used only for output. Only for input. Allows two-way data flow.

Which bus specifies memory addresses?. Address bus. Control bus. Data bus.