On the Board
Test is due Monday, 5PM
Back to Processors
Draw the Processor from last class
1. Enclose the picture in a chip-like package
2. Add busses (from drawing)
3. Notes on Nortshide
a. Direct and automatic interface to memory bus (using another form
of finite state controller) DDR (double data rate) memory is more
power efficient than traditional RAM. Speeds range from 2.1
gigabits per second to 6.4 Gbps.
b. Display is just a designated area in memory, with hardware that
interprets the numbers as picture elements (pixels). Often have a
graphics card or display card โ it sits between the Northside bus
and the VRAM. A high-end graphics card does 20-30 GigaOps.
c. In a standard PC design, this bus is sometimes called the Northside
bus
d. Programmed interface to I/O bus (using load & store operations on
specially designated memory locations) โ hidden by operating
system (OS)
4. Notes on Southside
a. ATA (advanced technology attachment) is most popular standard
for disk drive attachment; sometimes called IDE (integrated device
electronics). Several levels of ATA standard, ranging in speed.
b. Firewire โ up to 800 megabits (100 megabytes) per second.
Favored connection for digital cameras, iPods, & external disks.
(ATA connectors are wider and more fragile.)
COMP 200: Elements of Computer Science
Fall 2004
Lecture 30: November 12, 2004
From Processor to Computer
What are all those acronyms?
