310203e Microprocessors And Memory Flashcards
What is a word as it relates to computer memory?
A word is a group of bits accessed as a unit.
What are 5 common word lengths?
8 bit
16 bit
24 bit
32 bit
64 bit
What is a byte as it relates to computer memory?
8 bits of data
The location of a word of memory is called its _______
The location of a word of memory is called its address
What are the 3 possible output states of a Tri-state buffer?
- A logical 1
- A logical 0
- A high impedence output state
A memory chip is _______ if it does not have a clock input.
A memory chip is asynchronous if it does not have a clock input
Which type of RAM memory requires a refresh cycle?
Dynamic Random Access Memory (DRAM)
What is firmware as it relates to a microprocessor?
Firmware is the programs or instructions that are permanently stored in memory that control the CPU
ROM refers to memory that is read only in ________ operation
ROM refers to memory that is read-only in normal operation
Which micro processor main memory (RAM or ROM) is used to store the micro processor BIOS and why?
The ROM is used to store the microprocessor BIOS because it is non-volatile, and the BIOS must not be lost with a loss of power.
What are the 3 buses that a CPU uses to access its memory and peripherals?
- Address bus
- Data bus
- Control bus
What are the 3 tasks that are typically performed by a microprocessor during boot up?
- The microprocessor self-test
- The initializing of the peripheral devices
- The loading and starting of the operating system
Name 3 technology-based mass storage devices
- Hard drive (magnetic)
- Optical drive (laser reflection)
- Solid state drive (EEPROM)
A _______ is a small computer on a single integrated circuit containing a processor core, memory, and programmable input/output peripherals
A microcontroller is a small computer on a single integrated circuit containing a processor core, memory, and programmable input/output peripherals
What is the difference between a synchronous and asynchronous memory chip
A synchronous memory chips have a clock control input and asynchronous memory chips do not have a clock input to synchronize its operation.
