Extra Reading Materials

A World Without Aerospace/Aeronautical Engineers

A World Without Civil/Mechanical Engineers

A World Without Telecommunication Engineers

A World Without Computer Engineers

A World Without Electrical/Electronics Engineers!

A World Without Mechanical/Automotive Engineers

A World Without Electronics Engineers

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Naqib @ Pusrawi Wad Pediatric Ar-Raihan

Asalnyer nak balik rumah uwan, last-last uwan yg datang tengok Naqib kat spital… onchu ngan mak cu pun datang….

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After the announcement of the iPhone 3GS of the hardware specs of the 3GS. Here we outlined the single chip CPU/GPU SoC as follows:

	iPhone 3G (ARM11)	iPhone 3GS (ARM Cortex A8)
Manufacturing Process	90nm	65nm
Architecture	In-Order	In-Order
Issue Width	1-issue	2-issue
Pipeline Depth	8-stage	13-stage
Clock Speed	412MHz	600MHz
L1 Cache Size	16KB I-Cache + 16KB D-Cache	32KB I-Cache + 32KB D-Cache
L2 Cache Size	N/A	256KB

The iPhone 3GS uses an ARM Cortex A8 processor running at 600MHz, much like the Palm Pre. Many weren’t confident that the 3GS used the new ARM A8 core instead of a higher clocked ARM11

WiFi	Apple iPhone 3G	Apple iPhone 3GS	Palm Pre	T-Mobile G1
anandtech.com	16.3 s	7.8 s	8.2 s	17.2 s
arstechnica.com	17.7 s	6.3 s	7.8 s	17.8 s
hothardware.com	35.2 s	14.7 s	11.2 s	24.4 s
pcper.com	33.3 s	15.0 s	18.0 s	34.0 s
digg.com	34.3 s	15.0 s	22.1 s	40.0 s
techreport.com	24.1 s	9.6 s	9.0 s	20.5 s
tomshardware.com	21.4 s	16.4 s	13.8 s	26.0 s
slashdot.org	26.0 s	10.0 s	20.9 s	46.0 s
facebook.com	31.7 s	13.5 s	19.6 s	37.7 s
iPhone 3GS Advantage over Palm Pre		21%
iPhone 3GS Advantage over iPhone 3G		122%

The new 3GS renders web pages 128% faster, on average, than the old iPhone 3G. The 45% clock speed boost alone isn’t enough to generate such a large performance increase, this is a new microarchitecture. Also, note that the 3GS’ performance mimics that of the Palm Pre - another Cortex A8 based phone.

Not too surprising given the just-released nature of the Pre’s webOS, the 3GS is actually able to render webpages slightly faster than the Pre in some cases. The overall performance advantage ends up being 22.6% in favor of the 3GS over the Pre.

Application launch time has also improved :

Application Launch Time in Seconds	Web Browser	Dialer	Google Maps	Camera	Email
Apple iPhone 3GS	0.7 s	0.7 s	2.7 s	2.8 s	0.8 s
Apple iPhone 3G	0.8 s	1.2 s	3.3 s	3.9 s	1.2 s
Palm Pre	3.0 s	1.5 s	8.6 s	4.4 s	3.3 s
T-Mobile G1	5.4 s	2.0 s	4.4 s	4.9 s	2.0 s
iPhone 3GS vs. 3G Performance Advantage	14%	71.5%	22.2%	39.4%	50%

While the old iPhone 3G was no slouch, the 3GS is anywhere from 14 - 72% faster in basic application load times. It’s the magic of a brand new CPU architecture.

Source: AnandTech

This is the gadget that I would recommed for IIUM wireless users to get connected through SSID iium-gadget. In addition, Blackberry also has almost similar performance with iPhone. You can feel the real performance of IIUM campus wide infrastructure. So far, Windows Mobile based phone still not recommended because it will drop the backward compatibility of default wifi 802.11g technology. Standard handphone running on wifi 802.11b and it will change the nearby channel to 11b instead of 11g.  ITD will not tolerate to open the access for any gadget that able to down grade the nearby performance. If you own an iPhone or Blackberry, you are welcome to register for iium-gadget access.

For Symbion and Windows Mobile users, wait until new development. So far, even T-Mobile G1 performance, it take 5.4s to launch a web browser. Next time, before you purchase your handphone… carefully check the hadrware spec for clock speed, processor and cache size.

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According to an article written by Robert Braden, David Clark, Scott Shenker, and John Wroclawski, the architectural design of today’s Internet technology was based from an Internet architecture that was developed in the 1970s, under the Internet research program of the Defense Advanced Research Projects Agency (DARPA) of the US Department of Defense.

Computer scientist all over the world believe that it is now time to revisit the Internet architecture, to determine whether it can be changed to align better with current and future requirements. Many of the new requirements, present and future, are beginning to be apparent. Researchers predict that a combination of abstract reasoning and practical experimentation can bring a new clarity to the architectural architectural issues of the Internet.

For instance, a new layout for next generation of internet architecture might be designed to create greater functionality, generality, adaptability, and/or robustness in the future Internet. On the other hand, without a new long-term technical road map the Internet is likely to become decreasingly effective, often failing to meet the demands placed on it by applications.

The goal of a new-arch research program should be to define and prototype a future architecture towards which the Internet technology can evolve. A new-arch research program would differ from most other network research in the breadth of its viewpoint and in its relatively long time scale. Many Internet R&D projects are building upon the original Internet architecture, but few are looking at the basic architecture and requirements for a future Internet.

The next generation of internet architecture normally defines the problem space, exploring the meaning of “network architecture” and the gap between the original Internet architecture and current reality. It also discussing the issues to be considered in the development of a new architecture, initial thoughts about the changing requirements and the design of a new architecture, respectively. The authors briefly commented on a possible new-arch research project organization and process.

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