Exercise 2. Rewrite these sentences to emphasize the underlined words.
· These days you never know when your computer system will go down due to viruses, sabotage or natural disaster.
· We suggest that everyone back-up their files regularly.
· Over the past 10 years ECO Data Recovery has saved many individuals and companies by retrieving their lost data!
· The installation of a firewall coupled with anti-virus protection will greatly reduce your chances of becoming a hacker's next victim.
· In early 2000 most people became aware of the dangers of distributed denial of service (DDoS) attacks when a series of them knocked such popular Web sites as Yahoo, CNN, and Amazon off the air.
· Spindle motor failure can result from excessive heat due to a bearing failure.
· Everyone knows that computers are constantly getting faster, more powerful, and less expensive.
· Most sound cards give you the power to plug in speakers and a microphone.
· Movies on DVD can also have more than one sound track.
· Most computer users never change how their file and folder windows look.
Exercise 3. Complete the sentences using the following -ize verb forms:
computerize , randomize, categorize, minimize, unauthorized, personalize, customize, specialize.
· The real value of a good software application is often its ability … information in a way that facilitates easy extraction and analysis by people.
· People are using biometric software, such as fingerprints and facial recognition, to prevent … logging onto their computer systems.
· Even though the majority of PC software has the flexibility to generate, store and distribute data formatted to the users requirements, … applications are still favored by businesses.
· It could be said that computer programmers working on medical research projects are highly … .
· Manually kept records such as patient medical histories can be … for quick and easy access.
· You can … the screen by clicking on the box icon beside the white X in the top right hand corner of this screen.
· Users will want … their systems for a number of reasons, these include becoming more productive, solving the problem particular to their needs.
· Most people do not really understand that computers cannot actually … anything; the best thing they can do is to simulate the generation of random information to humans.
WRITING
Projects. Choose and perform one of the projects given.
1. A friend wants to create a table to store information about a collection of old books. List the fields you might include in the table to store information about the book. For each field, specify the field name, data type (text, numeric, date, etc) and field length. Indicate primary key(s) and describe in writing how you would sort and/or index the data.
|
|
|
2. Computer databases often store personal information about the citizens of more than one country, yet privacy expectations and laws differ. For this project, explore the differences in privacy laws around the globe. Which countries have the strongest privacy laws and which have the weakest? Which laws would govern the data stored by multinational companies? As a global consumer, which databases would concern you most for potential privacy violations? Consolidate your thoughts into one- to two-page paper and submit to your instructor.
UNIT 22
MoBILITY
Vocabulary Bank Unit 22
Task 1. Read, write the translation and learn the basic vocabulary terms:
1. “in-the –field” activities
2. authentication
3. backlit
4. brain damage
5. brainwave-based computer
6. combo
7. conduit
8. consuming media
9. cornerstone
10. corporate policy
11. corporate training
12. durable
13. e-learning
14. explored
15. eye strain
16. fingerprint recognition
17. GPS (Global Positioning System)
18. grindstone
19. handheld
20. ingenious
21. instructor-led training
22. lithium battery
23. Location-based services
24. losing battle
25. mentally
26. milestone
27. NFC (Near field communication)
28. pedestrian
29. pocket-sized devices
30. proliferation
31. refresh rate
32. script-enabled web pages
33. solid-state drives
34. superior
35. test score
36. tethered
37. to ban
38. to be physically absent
39. to be tuned
40. to challenge
41. to come along
42. to lower
43. to predict
44. to prohibit
45. to question
46. to regard
47. to stream video
48. to utilize
49. touch keyboard
50. touch-sensitive
51. treatment
52. ubiquitous
53. unveiled
54. wirelessly
TEXT 22 A. MOBILE DEVICES
A mobile device is a small computing device, typically small enough to be handheld (and hence also commonly known as a handheld computer or simply handheld) having a display screen with touch input and/or a miniature keyboard and weighing less than 2 pounds (0.91 kg Samsung, Sony, HTC, LG, Motorola Mobility and Apple are just a few examples of the many manufacturers that produce these types of devices).
|
|
|
A handheld computing device has an operating system (OS), and can run various types of application software. Most handheld devices can also be equipped with Wi-Fi, Bluetooth, NFC and GPS capabilities that can allow connections to the Internet and other devices, such as an automobile or a microphone headset or can be used to provide Location-based services. A camera or media player feature for video or music files can also be typically found on these devices along with a stable battery power source such as a lithium battery. Mobile devices may provide biometric user authentication, such as using the built-in camera for face recognition or using a fingerprint sensor for fingerprint recognition.
Tablet computers. Like laptops, tablet computers are designed to be portable. However, they provide a different computing experience. The most obvious difference is that tablet computers don't have keyboards or touchpads. Instead, the entire screen is touch-sensitive, allowing you to type on a virtual keyboard and use your finger as a mouse pointer.
Tablet computers are mostly designed for consuming media, and they are optimized for tasks like web browsing, watching videos, reading e-books, and playing games. For many people, a "regular" computer like a desktop or laptopis still needed in order to use some programs. However, the convenience of a tablet computer means it may be ideal as a second computer. Below are some of the main features you can expect with a tablet computer:
· Mobile OS: different types of tablets use different operating systems. Examples include Android and iOS. You'll usually be able to download free updates to your OS as they become available.
· Solid-state drives: tablet computers usually use solid-state drives, which allow the computer to boot upand open programs more quickly. They are also more durable than hard disk drives.
|
|
|
Because they are optimized for Internet use, tablet computers have built-in Wi-Fi. For a monthly fee, you can also purchase Internet data plan, allowing you to get access from almost anywhere. In order to save space, tablet computers have very few ports. If you want to use an external keyboard or other peripherals, they will often use a wireless Bluetooth connection.
E-book readers (also called e-readers) are similar to tablet computers, except they are mainly designed for reading e-books (digital, downloadable books). E-book readers have either an e-paper display or an LCD:
E-paper - short for electronic paper, this type of display can usually only display in black and white. It is designed to look a lot like an actual page in a book. Unlike an LCD, it is not backlit, so the text stays readable even outdoors in full sun. Many people consider e-paper to be more pleasant to read because it causes less eye strain. However, it generally can't be used for videos or other applications because the refresh rate is too low.
LCD: This is the same type of screen found on tablet computers and laptops. It's more versatile than e-paper, but it's often more difficult to view in bright sunlight, as the image becomes washed out. Since an LCD screen can display colors, this type of e-reader is better for viewing magazines or books with photos. Many LCD e-readers are basically tablet computers, as they can perform many different tasks in addition to displaying e-books.
You don't need an e-reader to read an e-book. E-books can usually be read on tablet computers, smartphones, laptops, and desktops.
A smartphone is a powerful mobile phone that is designed to run a variety of applications in addition to providing phone service. Smartphones are basically small tablet computers, and they can be used for web browsing, watching videos, reading e-books, playing games, and more.
A personal digital assistant (PDA) is a mobile device that is used for managing phone numbers, addresses, calendars, and other information. Before smartphones existed, a PDA was usually a separate device. Today, smartphones combine the functionality of a PDA and a mobile phone.
Дата добавления: 2018-10-26; просмотров: 487; Мы поможем в написании вашей работы! |
Мы поможем в написании ваших работ!