COS2621 Chapter 3
instruction cycle - (correct Answer) - consists of an instruction fetch, followed by zero or more operand
fetches, followed by zero
or more operand stores, followed by an interrupt check
The major computer system components (processor, main memory, I/O modules) need to be
interconnected in
order to: - (correct Answer) - exchange data and control signals.
most popular means of interconnection is - (correct Answer) - the use of a shared system bus consisting
of multiple lines.
Key design elements for buses include - (correct Answer) - 1- arbitration (allow a device to access the
BUS based on certain parameters)
2- timing
3-width
von Neumann Architecture is based on three key concepts: - (correct Answer) - 1- Data and instructions
are stored in a single read-write memory
2- The contents of this memory are addressable by location
3- Execution occurs in a sequential fashion
Computer Function - (correct Answer) - The basic function performed by a computer is execution of a
program, which consists of a set of instructions
stored in memory.
Instruction processing consists of 2 steps: - (correct Answer) - 1- the fetch cycle
2- the execute cycle
The processing required for a single instruction is called an - (correct Answer) - instruction cycle.
At the beginning of each instruction cycle, the processor: - (correct Answer) - fetches an instruction from
memory.
A register, called the program counter (PC), holds the address of the: - (correct Answer) - instruction to
be fetched next.
The processor always increments the program counter (PC) after each instruction, unless told otherwise,
so that it will fetch the: - (correct Answer) - next instruction in sequence.
instruction cycle - (correct Answer) - consists of an instruction fetch, followed by zero or more operand
fetches, followed by zero
or more operand stores, followed by an interrupt check
The major computer system components (processor, main memory, I/O modules) need to be
interconnected in
order to: - (correct Answer) - exchange data and control signals.
most popular means of interconnection is - (correct Answer) - the use of a shared system bus consisting
of multiple lines.
Key design elements for buses include - (correct Answer) - 1- arbitration (allow a device to access the
BUS based on certain parameters)
2- timing
3-width
von Neumann Architecture is based on three key concepts: - (correct Answer) - 1- Data and instructions
are stored in a single read-write memory
2- The contents of this memory are addressable by location
3- Execution occurs in a sequential fashion
Computer Function - (correct Answer) - The basic function performed by a computer is execution of a
program, which consists of a set of instructions
stored in memory.
Instruction processing consists of 2 steps: - (correct Answer) - 1- the fetch cycle
2- the execute cycle
The processing required for a single instruction is called an - (correct Answer) - instruction cycle.
At the beginning of each instruction cycle, the processor: - (correct Answer) - fetches an instruction from
memory.
A register, called the program counter (PC), holds the address of the: - (correct Answer) - instruction to
be fetched next.
The processor always increments the program counter (PC) after each instruction, unless told otherwise,
so that it will fetch the: - (correct Answer) - next instruction in sequence.
