Microprocessors Flashcards
Parts of a basic computer structure
Central Processing Unit (CPU),
Memory, Address Bus, Control Bus, Data Bus, Input/output ports and power connections.
The software is known as
The program, it’s procedures, and documentation
microprocessor
the individual instructions that are in the program
components of the CPU
The register section
Arithmetic Logic Unit (ALU)
Timing and Control Section
what does the The Register Section consist of
The register section consists of a number of storage locations (shift registers) where a piece of data is kept, or one of the registers is used by the microprocessor
in carrying out the different operations. A special memory in the microprocessor is called the status register. This is normally made up of single bit indicators (called
flags).
Zero flag -
sign flag
carry flag
parity flag
is the result zero
is the sign -ve or +ve
did a carry occur
whether the total number of bits are odd or even
what is the function of the ALU
This unit performs the arithmetic and logical operations. All calculations are
performed in binary, including addition, subtraction, multiplication and division. Adders can be made using a number of logic gates where the basic principles of
addition apply