(i) Dynamic RAM being a common type needs to be refreshed frequently.
(ii) Static RAM needs to be refreshed less often, which makes it faster. Static RAM is more expensive than Dynamic RAM.

The microprocessors classified based on Instruction set:
(i) Reduced Instruction Set Computers(RISC)
(ii) Complex Instruction Set Computers (CISC)

Microprocessors can be classified based on the following criteria:
(i) The width of data that can be processed
(ii) The instruction set

Data bus is used to transfer data between the memory and the CPU.

Address Bus is used to point the memory location.

MDR keeps the data which is transfered between the memory and the CPU.

 A bus is a collection of wires used for communication between the internal components of a computer.

Basic set of machine level instructions that a microprocessor is designed to execute is called as an instruction set.

(i) MHz (Mega Hertz)
(ii) GHz (Giga Hertz)

(i) Address Bus
(ii) Data Bus
(iii) Control Bus

(i) Address Bus
(ii) Control Bus
(iii) Data Bus

Ultra-violet-rays is used to erase the content of a EPROM.

High-Definition Multimedia Interface is an audio/ video interface which transfers the uncompressed video and audio data from a video controller, to a compatible computer monitor, LCD projector, digital television etc.

A command which is given to a computer to perform an operation on data is called an instruction.

A Microprocessor's performance depends on the following characteristics:
(a) Clock speed
(b) Instruction set
(c) Word size