CPU
Transforms Input
and Output
Each computer
contains one
Collection of
electronic circuits
Processor
Interpretates and
execute instructions
in a program
Circuit board/
motherboard
COMPABILITY
Not all software is
compatible with every
CPU.
Chips in Intel’s Core i7
backward compatible
with core 15, core 13,
core 2 duo, Celeron,
Pentium, 486,386 and
286 chips.
Processors by Advanced
Micro Devices are made
to be compatible.
PERFORMANCE
Some processors much
faster than other
Modern computer speed
measured called
gigahertz.
Many core machines may
have hundreds or tens of
processors per chip.
Web browsing
convenient to use faster
machine.
PC performance affected
by architecture.
TIPS TO HELP MINIMIZE
ENVIRONMENTAL IMPACT
BUY GREEN
EQUIPMENT
USE A LAPTOP
TAKE ADVANTAGE
OF ENERGY-SAVING
FEATURES
TURN IT OFF WHEN
YOU’RE AWAY
SAVE ENERGY, NOT
SCREENS
USE A GREEN FONT
PRINT ONLY ONCE
PRINT MOVING
PARTS
AVOID MOVING
PARTS
TURN IT ALL THE
WAY OFF
PASS IT ON
SEND BITS, NOT
ATOMS
CONSIDER HIDDEN
ENVIRONMENTAL
COSTS OF YOUR
DECISIONS
E-CYCLE YOUR
WASTE PRODUCTS
MULTICORE TO CLUSTER
Multiple servers can be grouped together in a
cluster to improve speed.
Google uses a cluster of thousands of PCs to
handle millions of search queries a day.
Parallel processing used in high-end servers
and workstations for time.
COMPUTER’S MEMORY
RAM memory most
common type of
primary storage.
Read-only memory
(ROM) computer
can only read
information from it.
Complementary
metal-oxide
semiconductor
(CMOS) store small
amounts of data for
long periods.
Flash memory can
be written and
erased rapidly and
repeatedly.
Popular cpu’s
Intel Xscale used in mobile and embedded devices.
ARM used in MP3, smarthphones and handheld devices
Cell processor used in game machines, mainframes , super computers etc.
Tilera TILEGEX line used in video conferencing, wireless base stations, and high-end network conrollers.
Intel Core 2 used in PCs and servers.
Intel i3/5/7 used in PCs and servers.
AMD used in PCs and servers
HOW MEMORY WORKS
CPU can store information
into RAM and retrieve
information from RAM.
Information permanently
recorded on the ROM.
RAM chips usually
grouped on small circuits
boards called dual in-line
memory models (DIMMs)
BUSES, PARTS AND PERIPHERALS
Information travels between components through groups of wires
called internal buses or buses.
Buses connect to storage devices in bays.
Buses also connect to expansion slots inside the computer´s housing.
Buses connect to ports that are generally used to attach peripherals.
Peripherals are connected to ports trough external buses.
TOMORROW’S COMPUTER
Researchers are working
to produce future
computers smaller, faster,
more powerful, and more
energy efficient that
today´s state of the art.
Make new chips faster, or
make it more energy
efficient.
Carbon-bases nanoscale
processors could be much
smaller and consume far
less electricity than
conventional silicon-bases
microprocessors.
THE CLOCK OF THE LONG NOW
Clock´s works
consist of a
binary digitalmechanical
system which
is accurate and
revolutionary.
The eventual
Clock is
experienced to
keep
proliferating
design ideals
for a while.
Long Now
added a
“Library”
dimension with
the realization
of the need for
the content to
go with
context
provided by
the Clock.
The point is to
explore
whatever may
be helpful for
thinking,
understanding,
and acting
responsibly
over long
periods of
time.
ANSWER QUESTIONS
• Do you think the Long Now Clock is a good idea? Why
or why not?
Yes, you have new ways of thinking in the world.
• Can you think of other ways to encourage long-term
thinking?
Yes, one is by getting some ideas and you will
encourage long-term thinking.