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Англійська мова для професійного спілкування (д...doc
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I. Match words in the text with their definitions.

1. To reside A. A seller of small articles that can

be carried about or pushed on a cart.

2. Option B. A variant, version, opportunity, or

a choice.

3. Vendor C. To belong to.

4. Software package D. The act of finding out, esp. by using

numbers.

5. Calculation E. A set of program media sold or offered

as a unit.

II. Identify whether the following statements are true or false. Use the model:

1) Student a: a computer is directed by a series of instructions called a computer program. – Student b: Yes, that is true.

2) Purchased programs often are referred to as system software packages. – s. B: No, that is false. These programs are referred to as application software packages.

1. Most computer users write their own programs.

2. Application software consists of programs that tell a computer how to produce information.

3. A window is a small picture that is used to represent processing options.

4. One of the more common user interfaces is the graphical user interface, which makes the software easier to use.

5. Programs required for common business and personal applications can be easily written by any PC user.

6. An important part of the application software is a set of programs called the operating system.

III. Complete the following sentences using words and expressions given below.

1. A window is a rectangular … of the screen that is used to present information.

2. Purchased programs often are referred to as ... software packages.

3. Some instructions allow data in memory to be used in calculations such as adding a series of numbers ... a total.

4. The graphical user interface combines text and ... to make the software easier to use.

5. Before computer programs can be ... , the program instructions must be loaded from disk into the memory of the computer.

6. Many different operating systems are … for computers.

available application to obtain performed graphics area

IV. Read and the text. Define what parts of speech the words in bold type are. Translate them into Ukrainian.

We see an operating system as the programs that make the hardware useable. In brief, an operating system is the set of programs that controls a computer. Some examples of operating systems are UNIX, Mach, MS-DOS, MS-Windows, Windows/NT, Chicago, OS/2, MacOS, VMS, MVS, and VM.

Controlling the computer involves software at several levels. We will differentiate kernel services, library services, and application-level services, all of which are part of the operating system. The core of the operating system is the kernel, a control program that functions in privileged state (an execution context that allows all hardware instructions to be executed), reacting to interrupts from external devices and to service requests and traps from processes. Generally, the kernel is a permanent resident of the computer. It creates and terminates processes and responds to their request for service.

Operating Systems are resource managers. The main resource is computer hardware in the form of processors, storage, input/output devices, communication devices, and data.

Some of the operating system functions are: implementing the user interface, sharing hardware among users, allowing users to share data among themselves, preventing users from interfering with one another, scheduling resources among users, facilitating input/output, recovering from errors, accounting for resource usage, facilitating parallel operations, organizing data for secure and rapid access, and handling network communications.