Match the definitions to the notions.

Pacemaker	the combination of persistent memory and program code and data stored in it
Microprocessor	a medical device that uses electrical impulses, delivered by electrodes contacting the heart muscles, to regulate the beating of the heart
ROM	multipurpose, programmable device that accepts digital data as input, processes it according to instructions stored in its memory, and provides results as output
Embedded software	a class of storage medium used in computers and other electronic devices
Firmware	computer software, written to control machines or devices that are not typically thought of as computers

4. Answer the following questions:

1) What is embedded software?

2) What is firmware?

3) Where do manufacturers build in embedded software?

4) Is this software simple or sophisticated?

5) What operating systems does embedded software come in?

6) What does embedded software have unlike application software?

7) What does embedded software need to include?

8) What is embedded software highly dependent on?

Read the information and put 4 questions to your friends.

Web applications are rarely used, although XML files and other output may be passed to a computer for display. File systems with folders are typically absent as are SQL databases.

Software development requires use of a cross compiler, which runs on a computer but produces executable code for the target device. Debugging requires use of an in-circuit emulator, JTAG or SWD. Software developers often have access to the complete kernel (OS) source code.

Size of the storage memory and RAM can vary significantly. Some systems run in 16 KB of Flash and 4 KB of RAM with a CPU operating at 8MHz, other systems can rival contemporary computers. These space requirements lead to more work being done in C or embedded C++, instead of C++. Interpreted languages like BASIC and Java are not used.

SPEAKING ENGLISH

Practise the dialogue with your friend.

Supper

- At what time do you usually have your supper?

- Well, I usually have my supper at seven o'clock.

- What do you have for supper.

- I eat either a slice of meat with some vegetables, or some meat salad, or a sausage sandwich, or some pudding and then I have a glass of tea with a piece of pie.

- Do you like your tea strong or weak?

- I don't have strong tea in the evening. And what about you?

- As for me, I eat almost nothing in the evening as I dine rather late.

- What does your supper consist of then?

- Oh, nothing substantial. It consists only of two cups of tea with milk and some toast or bread and butter. Sometimes I take either a cheese or a ham sandwich with my tea.

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