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Embedded software is very important economically because almost every electrical device now includes software. There are therefore many more embedded software systems than other types of software system. If you look around your house you may have three or four personal computers. But you probably have 20 or 30 embedded systems, such as systems in phones, cookers, microwaves etc
Responsiveness in real time is the critical difference between embedded systems and other software systems, such as information systems, web-based systems, or personal software systems, whose main purpose is data processing. For non-real- time systems, the correctness of a system can be defined by specifying how system inputs map to corresponding outputs that should be produced by the system. In response to an input, a corresponding output should be generated by the system and, often, some data should be stored. For example, if you choose a create command in a patient information system, then the correct system response is to create a new patient record in a database, and to confirm that this has been done. Within reasonable limits, it does not matter how long this takes.
However, in a real-time system, the correctness depends both on the response to an input and the time taken to generate that response. If the system takes too long to respond, then the required response may be ineffective. For example, if embedded software controlling a car braking system is too slow, then an accident may occur because it is impossible to stop the car in time.
(Extraído de: Software Engineering, I. Sommerville, 9th Edition, 2011, pg. 538.)
Text:
How to get the most enjoyment from your
color TV set
Your new color TV incorporates a host of features designed to give you excellent performance. Besides, this model utilizes a highly sophisticated control microprocessor that can give you unprecedented convenience and control in the areas of picture adjustment, channel tuning, monitor operation, on-screen information, and remote control.
We therefore strongly urge that you read all of these instructions before using yourTV for the first time.
Installation
Antenna
Unless your TV is connected to a cable TV system, or to a centralized antenna system, a good outdoor color TV antenna is recommended for the best performance. However, if you are located in a strong signal area that is free from interference and ghost conditions (multipath), an indoor antenna may be sufficient. The two pole antenna packedwith this set is for your convenience only. It is not capable of providing you with the sharp detail and rich color that this televisionwas designed to display.
Location
Select an area where sunlight or bright indoor illumination will not fall directly on the picture screen. Also, be sure that the location selected allows a free flow of air to and fromthe perforated back cover of the set.
Note
Never remove the back cover of the set. This can expose you to very high voltage and other hazards.
If the set does not operate properly, unplug it and call your dealer or service shop.
(Fonte: Color Television – Operating Instructions.)

Our nation is embarked on an ambitious space exploration program, and we owe it to the American taxpayers to get it right.
Hedge Fund Manager Donates $100 Million for
Central Park
ceremony at the fountain.
When asked at the news conference what prompted the gift, Mr. Paulson said: "Walking through the
park in different seasons, it kept coming back that in my mind Central Park is the most deserving of ali of New York's cultural institutions. And I wanted the amount to make a difference. The park is very large, and its endowment is relatively small."
The park's current endowment stands at $144 million. Half of Mr. Paulson's gift will go to the endowment, while the other half will be used for capital improvements. Mr. Paulson mentioned that he considered important: Restoring the park's North Woods, and sprucing up the Merchanfs Gate entrance at the park's Southwest comer, the most heavily used entrance.
Mr. Paulson has been a supporter of the Central Park Conservancy for 20 years, but this is his first major gift to the park. He joined the conservancy's board in June.
Two former parks commissioners, Henry Stern and Adrian Benepe, were at the news conference on Tuesday. It was also attended by Elizabeth Barlow Rogers and Richard Gilder, key figures in the conservancy's founding.
The announcement was made under cloudy skies in a ceremony attended by hundreds of employees of the Central Park Conservancy in their gray sweatshirts, as well as the conservancy's board. Doug Blonsky, the president and chief executive officer of the conservancy, which operates Central Park for the city, hailed the gift as "transformational," saying that it would break the cycle of restoration and decline that has marked the park throughout its 153-year history.
(h ttp ://www. nytimes. com)
In line 4, the term “clear-cut" gives the reader information about “answer".
The expression “thanks to” (l.4) can be replaced by due to, without changing the original meaning of sentence.
The verb form “ensure” (l.3) could be replaced by make certain without changing the meaning of the text.
And congratulations on your new purchase. You’re now entitled to an unsurpassed service and a number of benefits as part of the Ericsson warranty and service program. Your Ericsson mobile phone was designed to offer you the ultimate in quality, convenience and performance. And of course, we guarantee it. From now on, as the new owner of an Ericsson mobile phone, you’ll have access to a number of exclusive advantages such as: a vast network of Ericsson service centers; a limited 1 year warranty and service agreement, and a toll-free customer service hotline.
WARRANTY CONDITIONS
Dear Customer,
If your Ericsson product needs warranty service, you should send the product to any company authorized service facility. For information contact the store from which you purchased the product. The product in all cases must be accompanied by the following items: your name, address, telephone number, warranty card, bill of sale bearing the serial number, date of delivery, or reasonable proof of these dates, and a detailed description of the problem.
Our warranty
This warranty is extended by Ericsson Inc. (“The Company”) to the original purchaser for use only. Ericsson warrants this product to be free of defects in material and workmanship at the time of its original purchase and for the subsequent period of one (1) year. All accessories for the product are covered for a period of one (1) year fromthe date of purchase.
What we will do
If, during the period of warranty, this product proves defective under normal use and service due to improper materials or workmanship, the company will repair or replace the defective item with a new or factory rebuilt replacement.
(Taken from Ericsson - One yearWarranty and ServiceAgreement)
And congratulations on your new purchase. You’re now entitled to an unsurpassed service and a number of benefits as part of the Ericsson warranty and service program. Your Ericsson mobile phone was designed to offer you the ultimate in quality, convenience and performance. And of course, we guarantee it. From now on, as the new owner of an Ericsson mobile phone, you’ll have access to a number of exclusive advantages such as: a vast network of Ericsson service centers; a limited 1 year warranty and service agreement, and a toll-free customer service hotline.
WARRANTY CONDITIONS
Dear Customer,
If your Ericsson product needs warranty service, you should send the product to any company authorized service facility. For information contact the store from which you purchased the product. The product in all cases must be accompanied by the following items: your name, address, telephone number, warranty card, bill of sale bearing the serial number, date of delivery, or reasonable proof of these dates, and a detailed description of the problem.
Our warranty
This warranty is extended by Ericsson Inc. (“The Company”) to the original purchaser for use only. Ericsson warrants this product to be free of defects in material and workmanship at the time of its original purchase and for the subsequent period of one (1) year. All accessories for the product are covered for a period of one (1) year fromthe date of purchase.
What we will do
If, during the period of warranty, this product proves defective under normal use and service due to improper materials or workmanship, the company will repair or replace the defective item with a new or factory rebuilt replacement.
(Taken from Ericsson - One yearWarranty and ServiceAgreement)


Judge the following items, according to the text above.


According to the text above, judge the following item.