2. Give an accurate translation of the words and word expressions:

1) alphanumeric
2) an electronic switch
3) to set up a computer
4) to power on/off
5) to change settings
6) a stylus
7) precision
8) barcode readers
9) to enter stock
10) retina scanners
11) to improve accuracy
12) password authentication
13) leaked passwords
14) biometric authentication

3. Make up your own sentences with the verbs in bold type from the text.

4. Choose the right answer:

1. What is the best definition of 'touchscreen'?

1. an input device using a light-sensitive pen shaped handle which can be used to draw on the computer screen;

2. the ability of a computer to convert spoken words from a user into usable data;

3. a display that also acts as an input device by allowing a user to navigate a program by pressing specific locations of the screen.

2. What is the best definition of 'touchpad'?

1. an input device consisting of a sensitive rectangular area in which one uses a finger to move a cursor on a display;

2. the ability of a computer to determine standard letters and numbers based on fuzzy logic;

3. an input device with a vertical rod mounted on a base used to control pointing devices or on-screen objects; normally with one or more buttons.

3. What is the best definition of 'speech recognition'?

1. a handheld input device used to move an onscreen pointer by means of sliding on a flat surface;

2. the ability of a computer to convert spoken words from a user into usable data;

3. an input device using a light-sensitive pen shaped handle which can be used to draw on the computer screen.

4. What is the best definition of 'graphics tablet'?

1. a device which forms a digitised image of a human finger print for the purpose of biometric authentication;

2. an input device using a light-sensitive pen shaped handle which can be used to draw on the computer screen;

3. an input device or mouse alternative using a sensitive rectangular surface and a stylus.

5. What is the best definition of 'input device'?

1. a special icon (normally an arrow) which indicates the current location of the mouse on the desktop screen;

2. a handheld input device used to move an onscreen pointer by means of sliding on a flat surface;

3. any peripheral used primarily to enter data into a computer.

(based on: http://www.english4it.com)

5. Read the information file and do the tasks below: The keyboard

A standard PC keyboard has various groups of keys. Alphanumeric keys - these represent letters and numbers, arranged as on a typewriter. A numeric keypad appears to the right of the main keyboard and contains numeric and editing keys; the Num Lock key is used to switch from numbers to editing functions. Function keys appear at the top of the keyboard and can be programmed to do special jobs. Cursor keys include 'arrow keys' which move the insertion point, and keys such as Home, End, Page Up, and Page Down, which let you move around documents.

Dedicated keys are used to issue commands or produce alternative characters. For example: Ctrl changes the functions of other keys (e.g. Ctrl + X cuts the selected text). Caps Lock sets the keyboard in 'CAPITALS' mode; it only affects letters. Enter (or Return) is pressed to select options from a menu or to start a new paragraph. Backspace deletes the character to the left of your current position.

Below is a list of key vocabulary terms related to a keyboard:

&(ampersand)

a key which is used in many languages to mean 'and'

*(asterisk)

the character which often means "multiply" in a math equation or "match all" in a RegEx wildcard

@(at sign)

the sign often used in email addresses to separate usernames from domain names

\(back slash)

a key used for separating files and folders, normally in a Windows file system.

brackets

the punctuation marks '{' and '}' used in pairs to set apart or interject text within other text

case

in typography, this is the distinction between capital (big) and lower (small) letters

/(forward slash)

a key used to separate folders and files, often used in Unix file systems

>(greater than sign)

the sign which means that the value on the right is less than the value on the left

5 > 3

<(less than sign)

the sign which means that the value on the left is smaller than the value on the right

3 < 5

-(minus sign)

The operator sign often indicating the process of subtraction or difference

Parentheses

the punctuation marks '(' and ')'used in pairs are often used to group values in an equation.

%(percent sign)

the sign meant to show a common measurement based on a fraction of 100

+(plus sign)

the operator sign normally indicating the operation of addition

square brackets

the punctuation marks '[' and ']' used in pairs to set apart or interject text within other text

~(tilde)

this key normally means "approximately" in mathematics; in Unix systems this character is used to represent a home directory

_(underscore)

a character often used in file names to join words without using a space; originally used on typewriters to make underlined text