Computer Architect

Topics: Computer, Central processing unit, Output Pages: 2 (744 words) Published: January 30, 2013
Week 2 Approved Solutions - Complete end of chapter Review Questions 3.1, 3.2, 3.3, 3.4, 3.5, and Problem 3.3, 3.4 in the text.

3.1Processor-memory: Data may be transferred from processor to memory or from memory to processor. Processor-I/O: Data may be transferred to or from a peripheral device by transferring between the processor and an I/O module. Data processing: The processor may perform some arithmetic or logic operation on data. Control: An instruction may specify that the sequence of execution be altered.

3.2Instruction address calculation (iac): Determine the address of the next instruction to be executed. Instruction fetch (if): Read instruction from its memory location into the processor. Instruction operation decoding (iod): Analyze instruction to determine type of operation to be performed and operand(s) to be used. Operand address calculation (oac): If the operation involves reference to an operand in memory or available via I/O, then determine the address of the operand. Operand fetch (of): Fetch the operand from memory or read it in from I/O. Data operation (do): Perform the operation indicated in the instruction. Operand store (os): Write the result into memory or out to I/O.

3.3(1) Disable all interrupts while an interrupt is being processed. (2) Define priorities for interrupts and to allow an interrupt of higher priority to cause a lower-priority interrupt handler to be itself interrupted.

3.4Memory to processor: The processor reads an instruction or a unit of data from memory. Processor to memory: The processor writes a unit of data to memory. I/O to processor: The processor reads data from an I/O device via an I/O module. Processor to I/O: The processor sends data to the I/O device. I/O to or from memory: For these two cases, an I/O module is allowed to exchange data directly with memory, without going through the processor, using direct memory access (DMA).

3.5With multiple buses, there are fewer devices per bus. This...
Continue Reading

Please join StudyMode to read the full document

You May Also Find These Documents Helpful

  • Architect Career Project Essay
  • Civil Engineer vs. Architect Essay
  • Essay on Architects and Transportation Engineers
  • Sperry/Maclennan Architects and Planners Essay
  • Aldo Rossi: A Poet and an Architect Essay
  • Essay on Project Name: Woody 2000. Background: Expansion and Modernisation of Woody’s Manufacturing Business with Growth Based on Computer...
  • Write an Argumentative Essay of at Least 2000 Words on an Issue Related to the Role of the Profession of Architecture or Interior Architects
  • Do We Learn from our Mistakes Essay

Become a StudyMode Member

Sign Up - It's Free