Microprocessor Concepts and Operations Quiz

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Questions and Answers

Which component is primarily responsible for detecting and reporting issues during bus operations?

  • Instruction register
  • Watchdog monitor (correct)
  • Address decoder
  • Bus snooping mechanism

Which register holds the memory address of the next instruction to be fetched?

  • Data register
  • Accumulator
  • Stack pointer
  • Program counter (correct)

What is the term for a signal that requires immediate attention, suspending the current process to perform a specific action?

  • Subroutines
  • Operands
  • Interrupts (correct)
  • Commands

Which flag primarily dictates the direction of data processing during string operations?

<p>Direction flag (D)</p> Signup and view all the answers

Which instruction facilitates the movement of data or memory addresses into a register?

<p>MOV instruction (D)</p> Signup and view all the answers

Which instruction is used to push all flag registers onto the stack?

<p>PUSHF (B)</p> Signup and view all the answers

A word data type is equivalent to which of the following sizes?

<p>2 bytes or 16 bits (B)</p> Signup and view all the answers

Which of the following describes the characteristic of the second generation of microprocessors?

<p>Transistors (A)</p> Signup and view all the answers

What does Moore's Law primarily describe?

<p>The doubling of transistors per integrated circuit every two years (A)</p> Signup and view all the answers

Which of the following microprocessors was NOT an advance from Intel?

<p>Pentium (B)</p> Signup and view all the answers

In which year was the first practical integrated circuit developed?

<p>1959 (A)</p> Signup and view all the answers

Who developed the first single general-purpose chip that could be programmed?

<p>Ted Holf (B)</p> Signup and view all the answers

Which of the following is NOT a stated vision of Mapua Institute of Technology?

<p>Be the best universities in the Philippines (B)</p> Signup and view all the answers

What does Mapua Institute aim to provide through its learning environment?

<p>Its students to acquire the attributes that will make them globally competitive. (B)</p> Signup and view all the answers

Which of the following is NOT a type of RAM?

<p>Nonvolatile memory (B)</p> Signup and view all the answers

What is the specialized parallel operation that facilitates data transfer from a hard disk to a microcomputer's memory?

<p>Direct memory access (DMA) (C)</p> Signup and view all the answers

Which type of instruction is primarily used to move data between registers, memory locations, and external devices?

<p>Data transfer instructions (B)</p> Signup and view all the answers

What is the term for a hardware-triggered event that temporarily halts the processor's current instruction execution to execute a specific routine?

<p>Interrupt (C)</p> Signup and view all the answers

What kind of instructions are primarily responsible for performing boolean logic operations like AND, OR, and NOT, as well as operations such as shifts and rotates?

<p>Bit manipulation instructions (B)</p> Signup and view all the answers

In a computer system, what is often referred to as the 'heart' and primary controller of all operations?

<p>Central Processing Unit (CPU) (C)</p> Signup and view all the answers

Which special devices are commonly used in elementary control systems because of their many integrated features?

<p>Microcontrollers (A)</p> Signup and view all the answers

What was the first processor in the 80x86 family that had a 16-bit architecture and was capable of addressing 1 MB of memory?

<p>8086 (B)</p> Signup and view all the answers

What is the term for a set of memory locations that can be accessed using a certain number in a segment register?

<p>Segment (B)</p> Signup and view all the answers

Intel CPUs are typically regarded as what type of endian computers, while Motorola processors are considered what other type?

<p>Little-endian, big-endian (C)</p> Signup and view all the answers

What is considered the primary focus for computer designers?

<p>Speed (C)</p> Signup and view all the answers

What is the term for a microprocessor with added read/write memory, ROM, EEPROM, and I/O interfaces?

<p>Microcontroller (B)</p> Signup and view all the answers

Who developed the method of evaporating aluminum on silicon wafers to connect transistors?

<p>Robert Noyce (A)</p> Signup and view all the answers

What is the term for a group of lines within a microprocessor system that have a related function?

<p>System Bus (D)</p> Signup and view all the answers

Which of the following stores all the data and instructions first?

<p>Instruction Register (C)</p> Signup and view all the answers

What causes an Overflow Flag (OF) to be set to 1?

<p>The result of an arithmetic operation exceeds the maximum representable value. (D)</p> Signup and view all the answers

What is the value of the Interrupt Enable Flag (IF) after the execution of the instruction CLI?

<p>0 (B)</p> Signup and view all the answers

Which of these instructions is responsible for disabling interrupts?

<p>CLI (D)</p> Signup and view all the answers

What type of cycle does the Pentium run when it detects an interval parity error?

<p>Shutdown cycle (D)</p> Signup and view all the answers

Which data dependency occurs when the second instruction reads an operand written by the first instruction?

<p>Read after write (A)</p> Signup and view all the answers

Which mechanism does Pentium use to maintain cache coherency in its data cache?

<p>MESI (B)</p> Signup and view all the answers

What is the average access time for a system containing a 15ns cache and a 75ns RAM with a hit ratio of 0.89?

<p>23.25ns (C)</p> Signup and view all the answers

Flashcards

Watchdog monitor

An element that monitors bus operation.

Program counter

A register pointing to the next instruction to be executed.

Interrupts

Signals that require attention and may pause ongoing tasks.

Direction flag

A flag affected during string operations indicating direction.

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MOV instruction

Instruction to transfer data to a register or variable.

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Zero flag

Indicates that a zero condition has occurred in processing.

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CISC

Stands for Complex Instruction Set Computer.

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Binary of -28

The binary representation is 0000 0000 1110 0100.

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Moore's Law

The principle that transistor complexity doubles every 2 years.

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First practical IC

The first integrated circuit was developed in 1959.

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General-purpose chip designer

Ted Holf created the first programmable calculator chip.

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Vision of Mapua Institute

Aim to be among the best universities in the world.

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Learning environment goal

Prepare students to be globally competitive engineers.

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State-of-the-art solutions

Institute provides advanced solutions for industries and communities.

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Direct Memory Access (DMA)

A special operation to transfer data from disk to memory.

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Words in computing

Sixteen-bit numbers are referred to as words.

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Data Transfer Instructions

Instructions that move data among registers, memory, and I/O.

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Bit Manipulation Instructions

Instructions for performing logical, shift, and rotate operations.

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Central Processing Unit (CPU)

The master controller of all operations in a computer system.

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Microcontrollers

Special devices commonly used in simple control systems with diverse features.

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16-bit 8086

The first processor of the 80x86 family capable of addressing 1 MB of memory.

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Segment

Contains all memory locations accessible via a segment register.

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Instruction Groups (80x86)

The six main groups include Data Transfer and Arithmetic Instructions.

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Instruction Decoder

Element that decodes the operation code of an instruction.

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Bus Snooping

A cycle where the Pentium processor monitors the system bus in multiprocessor systems.

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Hit Ratio

Specifies the percentage of successful hits to total cache accesses.

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TLB

Translates linear addresses into physical addresses.

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Dynamic Execution

A technology used by busy instruction pipelines to improve performance.

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Overflow

An error that occurs when a calculation exceeds the storage capacity.

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Privilege Level

A security measure that determines access rights in a system.

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Nested Task

A task that is initiated within the context of another task.

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Operation Code (Opcode)

A code that specifies the operation to be performed by a processor.

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MOV AX

An instruction that moves data to the AX register.

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ADD Instruction

Instruction to perform addition on two operands.

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Control Signals

Signals that manage the operations of computer components.

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Program Counter Address

The address the program counter points to for the next instruction.

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MOV BX OpCode

The OpCode for the instruction MOV BX, which is BB.

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Input Devices

Devices needed to input data into a program.

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System Bus

A group of lines for related functions in a microprocessor system.

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Coprocessor

An element that performs additional functions like graphics and encryption.

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Instruction Register

Holds data and instructions before processing in a microprocessor.

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Related Documents

COE121-C1 Quiz#1 PDF

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