Key Terms Test Flashcards
The Purpose of the CPU
Manage basic operations of the computer
The main components of the CPU
Control Unit, Arithmetic Logic Unit, Registers, Cache
Von Neumann Architecture
The architecture that allows for storage of instructions and data in the same location
The FDE Cycle
The cycle the CPU continuously carries out to process instructions.
Register
Temporary holds data and instructions as they are being processed by the CPU
Program Counter
Keeps the address of the next instructions
Accumulator
The accumulator stores results of logic operations and calculations used during processing.
Memory Data Register
Holds data fetched from main memory
Cores
CPUs with multiple cores have the power to run multiple programs at the same time.
Clock Speed
Measures how many fetch-execute cycles the CPU can deal with in a second.
Cache Size
The more data that can be held in cache, the shorter the trip the electric pulses need to make so this speeds up processing time.
Embedded System
A computer System which forms part of an electronic device
Functions of the Control unit
Sending signals to control the flow of data and instructions and decoding instructions.
Each cycle of FDE cycle
Fetch - Fetches the instructions from the main memory and is stored in the memory data register.
Decode - Instructions and data are decoded from binary to find out what it is.
Execute - The CPU performs the required instructions.
