Microcontroller Communication Systems Quiz
43 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Which communication protocol is used for point-to-point communication?

  • I2C
  • UART (correct)
  • SPI
  • PWM

What should be implemented to ensure one device controls the bus at a time during data transfer?

  • Setup and Hold Times
  • Data Transfer Rate Optimization
  • Bus Clock Synchronization
  • Arbitration (correct)

Which type of data transfer provides a method for connecting multiple devices on a single bus while allowing them to communicate with each other?

  • USB
  • Ethernet
  • Parallel Bus
  • I2C (correct)

What is the primary goal of implementing power management strategies in microcontroller systems?

<p>Optimize energy consumption (B)</p> Signup and view all the answers

What is the term used to describe the time delay between initiating a request and receiving a response in I/O systems?

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

What does ROM stand for?

<p>Read-Only Memory (C)</p> Signup and view all the answers

Which of the following best describes the data stored in ROM?

<p>Permanently written and readable (B)</p> Signup and view all the answers

Which is a primary use of ROM?

<p>Storing the BIOS of a computer (A)</p> Signup and view all the answers

What type of ROM cannot be modified once programmed?

<p>Mask ROM (MROM) (D)</p> Signup and view all the answers

What differentiates EEPROM from EPROM?

<p>EEPROM can be erased and reprogrammed electrically. (D)</p> Signup and view all the answers

Which of the following is an advantage of using ROM?

<p>It retains data during a power loss (A)</p> Signup and view all the answers

What is a limitation of ROM?

<p>Data cannot be easily modified (A)</p> Signup and view all the answers

Where is ROM commonly found aside from computers?

<p>In embedded systems and gaming consoles (D)</p> Signup and view all the answers

What type of memory is known for losing its content when power is turned off?

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

Which type of RAM does not require constant refreshing to retain data?

<p>Static Random Access Memory (SRAM) (A)</p> Signup and view all the answers

What is the primary purpose of auxiliary memory?

<p>To provide long-term storage of data (C)</p> Signup and view all the answers

Which type of storage device is known for its high speed and durability?

<p>Solid State Drives (SSDs) (B)</p> Signup and view all the answers

What is a common file system used for managing data on external storage?

<p>FAT32 (B)</p> Signup and view all the answers

How are RAM capacities typically measured?

<p>Gigabytes (GB) or Terabytes (TB) (C)</p> Signup and view all the answers

Which aspect of RAM refers to the delay in data retrieval?

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

Which type of RAM is often used in CPUs as cache memory?

<p>Static Random Access Memory (SRAM) (B)</p> Signup and view all the answers

Which external storage service allows users to store data online?

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

What does ECC stand for in relation to RAM modules?

<p>Error-Correcting Code (A)</p> Signup and view all the answers

Which of the following is an output device?

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

What is a primary function of communication devices?

<p>Facilitating data exchange over networks (C)</p> Signup and view all the answers

Which I/O operation involves writing data from the computer's memory?

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

What is a characteristic of serial I/O?

<p>Transmits data one bit at a time (D)</p> Signup and view all the answers

Which of the following is a disadvantage of parallel I/O?

<p>Higher complexity due to multiple wires (C)</p> Signup and view all the answers

What role do device drivers serve in I/O operations?

<p>They facilitate communication between the operating system and hardware. (D)</p> Signup and view all the answers

What is the purpose of I/O buffers in data transfer?

<p>Hold data temporarily during I/O operations (A)</p> Signup and view all the answers

In what scenario is parallel I/O typically used?

<p>In high-performance computing environments (B)</p> Signup and view all the answers

What is the main advantage of serial I/O?

<p>Simplicity and cost-effectiveness (D)</p> Signup and view all the answers

What is the role of I/O controllers?

<p>To manage communication between the CPU and external devices (A)</p> Signup and view all the answers

What does contiguous allocation do in external memory management?

<p>Assigns a continuous block of space to a file. (C)</p> Signup and view all the answers

What is the primary purpose of caching in memory management?

<p>To speed up access to frequently used data. (D)</p> Signup and view all the answers

Which memory type is non-volatile and retains data without power?

<p>Read-Only Memory (ROM) (D)</p> Signup and view all the answers

What mechanism helps ensure data integrity in external storage?

<p>Error detection and correction mechanisms (A)</p> Signup and view all the answers

What does wear leveling aim to prevent in flash memory?

<p>Premature failure of specific memory regions (A)</p> Signup and view all the answers

Which type of memory allows operating systems to act as if they have more RAM?

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

Which factor does NOT influence memory bandwidth?

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

What type of devices sends data to a computer?

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

In memory technology, what does CAS latency measure?

<p>Access time for data retrieval (A)</p> Signup and view all the answers

Which allocation method uses pointers to connect file blocks?

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

Flashcards

ROM

Read-Only Memory; a type of non-volatile memory used primarily for storing firmware and software that rarely needs updating.

Read-Only Nature of ROM

Data in ROM can't be easily changed or overwritten by normal computer processes.

Non-volatile Memory

ROM retains its data even when the power is off.

BIOS

Basic Input/Output System; firmware on a computer's motherboard responsible for hardware initialization during boot.

Signup and view all the flashcards

Mask ROM (MROM)

A type of ROM where the data is permanently written during manufacturing.

Signup and view all the flashcards

Programmable ROM (PROM)

A type of ROM that can be written to once using a special device.

Signup and view all the flashcards

Erasable Programmable ROM (EPROM)

A type of ROM that can be erased and reprogrammed using UV light.

Signup and view all the flashcards

Electrically Erasable Programmable ROM (EEPROM)

A type of ROM that can be erased and reprogrammed electrically.

Signup and view all the flashcards

RAM

Random Access Memory; temporary computer memory for actively used data, lost when power off

Signup and view all the flashcards

Volatile Memory

Data lost when power is off; characteristic of RAM.

Signup and view all the flashcards

Auxiliary Memory

Non-volatile storage (like hard drives or SSDs) supplementing RAM.

Signup and view all the flashcards

Hard Disk Drive (HDD)

Magnetic storage device providing large capacity; commonly used for data storage.

Signup and view all the flashcards

Solid State Drive (SSD)

Flash memory-based storage device; faster and more durable than HDDs.

Signup and view all the flashcards

File System

Structure that organizes data storage and retrieval on external storage devices.

Signup and view all the flashcards

Storage Hierarchy

Different levels of storage (registers, cache, RAM, external storage) with varying access speeds.

Signup and view all the flashcards

DRAM

Dynamic Random Access Memory; most common RAM type; needs constant refreshing.

Signup and view all the flashcards

DDR RAM

Double Data Rate RAM, transfers data on both clock signal edges, increasing speed.

Signup and view all the flashcards

Latency

Delay between a request for data and its availability; lower is better.

Signup and view all the flashcards

External Memory Management

Organizing and accessing data stored on devices like hard drives and SSDs.

Signup and view all the flashcards

Contiguous Allocation

Files stored in a continuous block of memory.

Signup and view all the flashcards

Linked Allocation

Files stored in separate blocks linked by pointers.

Signup and view all the flashcards

Indexed Allocation

Files referencing location of data blocks in an index.

Signup and view all the flashcards

Caching Mechanism

Storing frequently accessed data in faster memory (RAM) for faster retrieval.

Signup and view all the flashcards

Error Handling (Storage)

Using methods like checksums to ensure data integrity on external storage.

Signup and view all the flashcards

Wear Leveling (Flash Memory)

Distributing write/erase cycles to prevent flash memory regions from wearing out too fast.

Signup and view all the flashcards

Garbage Collection (Flash Memory)

Reclaiming unused storage space in flash memory.

Signup and view all the flashcards

RAM Speed

Measured in MHz or GHz, indicating how fast data is read/written.

Signup and view all the flashcards

Memory Bandwidth

Rate of data transfer to/from memory; influenced by speed, bus width, and type.

Signup and view all the flashcards

Output Devices

Devices that display or transmit information from a computer.

Signup and view all the flashcards

Storage Devices

Devices for saving and retrieving data.

Signup and view all the flashcards

Communication Devices

Devices connecting computers to networks.

Signup and view all the flashcards

I/O Ports

Computer interfaces for connecting external devices.

Signup and view all the flashcards

Serial I/O

Data transfer one bit at a time.

Signup and view all the flashcards

Parallel I/O

Multiple bits transferred simultaneously.

Signup and view all the flashcards

I/O Operations

Data transfer between computer memory and external devices.

Signup and view all the flashcards

Interrupts

Signals to the CPU about external events.

Signup and view all the flashcards

I/O Controllers

Hardware managing CPU communication with external devices.

Signup and view all the flashcards

Interfacing I/O Components

Connecting external devices to a system to exchange data.

Signup and view all the flashcards

I/O Bus

Connects peripheral devices (like printers, hard drives) to the computer.

Signup and view all the flashcards

Bus Arbitration

Process for controlling communication on a bus when multiple devices want to send data at the same time.

Signup and view all the flashcards

Bus Clock

The timing signal for bus operations, measured in MHz or GHz.

Signup and view all the flashcards

Bus Latency

Delay between sending a request and receiving a response on a bus.

Signup and view all the flashcards

Bus Bandwidth

Maximum amount of data that can be transferred over a bus per unit of time.

Signup and view all the flashcards

More Like This

Use Quizgecko on...
Browser
Open
Browser
Browser