Hello Computer Organization Students:

If you are in Section 1 (class time at 12:30 on TTh), your Final is Thursday (5/8) 3-4:50 PM.

If you are in Section 2 (class time at 2:00 on TTh), your Final is Wednesday (5/7) 1-2:50 PM.

The Final will be closed book and notes, except for one 8.5" x 11" sheet of paper with notes and the orange ARM Quick Reference Card.

The Fall will be comprehensive with

Material covered after Test 2

Chapter 4.

Types of I/O: programmed I/O, interrupt-driven I/O, and direct-memory access (DMA)

I/O interface module: operation and function

Ways to address I/O devices: memory-mapped I/O and special I/O instructions ("isolated I/O")


Hardware Suport for Operating systems:

1) Dual-mode execution - system and user modes, mode bit(s) in the processor status register

privileged instructions with run-time checking by CPU

2) Restricting a program to its memory space

3) Protection from a user program in an infinite loop - CPU timer

Buses - address, data, and control wires

Synchronous and asynchronous communication protocols

Chapter 5.

Memory hierarchy: levels and goals (speed, capacity, and cost)

Locality of reference (temporal and spatial)

Idea of cache and virtual memory

RAM: static and dynamic

Motivation for "square-memory" array of bits on a memory chip

Advanced DRAM Organizations of Synchronous DRAM

Cache: types (direct mapped, fully associative, set associative); replacement (LRU and random)

Write policies (write-through, write-back)

Unified vs. split cache

Pentium IV example

Magnetic disk- organizaton/format; characteristics; access time (seek time, rotational delay/latency)

Chapter 6. Sections 6.3 - 6.5, 6.7 since Test 2

Multiplication of positive integer numbers

Booth's algorithm for two's complement signed numbers

Bit-Pair Recoding of recoding to speed up Booth's algorithm

IEEE 754 Floating Point standard: normalized and denormal numbers