- •Language work: Articles
- •Listening
- •What can computers do?
- •Language work: The Present Simple Passive
- •Living with computers
- •Other applications
- •In pairs, discuss the elements of a simple computer system.
- •Read the text, translate it and get ready to do the exercises after the text.
- •Unit 3 Types of computer system reading material
- •Study in the table the details of different types of computer.
- •Find the answers to these questions. Which type of computer is:
- •From mainframes to wearable computers
- •Language work: Comparison
- •Aids to communication
- •Problem-solving
- •Writing
- •Language work: Compound Adjectives
- •Wearable computers, aren’t they chic?
- •Inside the system reading material
- •What's inside a pc system?
- •Language work: Relative Clauses
- •Vocabulary quiz
- •Processors and memory.
- •Your ideal computer system
- •Unit 5 units of memory reading material
- •Bits - basic units of memory
- •Bytes and characters
- •The ascii code
- •Kilobytes, megabytes and gigabytes
- •Word building
- •Bits for pictures
- •Buying a computer.
- •Input devices-1 reading material
- •Work in pairs.
- •About the keyboard
- •The mouse
- •Voice input
- •Input devices-2 reading material
- •Word building
- •Language work: Instructions and Advice
- •Unit 10 magnetic drives
- •Technical details
- •World building
- •What are the advantages and disadvantages of optical disks?
- •Read the text to check your answer.
- •Connectors and modifiers
- •Products available
- •Iomega's removable drives
- •Unit 12 operatung systems and database sytems reading material
- •What is the function of os?
- •How many parts does it consist of?
- •Operating Systems
- •Language work: Countable and Uncountable Nouns
- •Systems Programs and Databases
- •Writing
- •Unit 13 The Graphical User Interface reading material
- •Language work: The Passive Voice (Present, Past)
- •Writing
- •Graphics and design
- •Writing
- •Unit 14 Word-processing facilities reading material
- •Word-processing facilities
- •Language Work: -ing forms
- •Unit 15 Databases reading material
- •Basic features of database programs
- •Unit 16 faces of the internet
- •Internet software
- •Irc, audio and video chatting
- •Unit 17 Programming languages reading material
- •Algorithm
- •Flowchat
- •Programming languages
- •Language work: Infinitive constructions.
- •Make a list of as many computer languages as you can think of.
- •Language work: The passive
- •A short description of Visual Basic
- •What is Java?
- •Language work: The Past Simple
- •Read the text and do the following exercises.
- •Support
- •Charles Graham
- •Language work: Past Activities.
- •Animator
- •Video game creator
- •Network security administrator
- •Webmaster
- •Unit 20 Electronic communications reading material
- •How can a pc be connected to another computer?
- •What data communication systems can you think of? Make a list.
- •Channels of communication
- •Word building: Prefixes
- •If you are not sure, look them up in a dictionary.
- •Unit 21
- •Internet issues reading material
- •Security and privacy on the Internet
- •Security on the Web
- •Network security
- •Virus protection
- •Preventative tips
- •Internet security
- •Internet crime
- •Hackers!
- •Language work: The Past Simple (revision)
- •Unit 22 laNs and waNs reading material
- •Network configurations
- •Language work: Predicting Consequences
- •WaNs and worldwide communications
- •Read the following text.
- •Mobile phones: definition and technology
- •A brief history
- •Features and functions
Language work: Comparison
Ex. 1. Study this comparison of three types of computer.
|
Mainframes |
Minicomputers |
Microcomputers |
Size |
+ + + |
+ + |
+ |
Power |
+ + + |
+ + |
+ |
Cost |
+ + + |
+ + |
+ |
We compare things using adjectives in two ways.
1. We can compare one type of computer with another.
Minicomputers are bigger than microcomputers.
Mainframes are more expensive than microcomputers.
For negative comparisons, we can say:
Microcomputers are not as big as minicomputers.
Microcomputers are not as powerful as mainframes.
2. We can compare mainframes to all other types of computer.
Mainframes are the biggest computers.
Mainframes are the most powerful computers.
Mainframes are the most expensive computers.
With short adjectives (big, small, fast), we add-er and -est (faster, fastest).
With longer adjectives (powerful, expensive), we use more/less and the most/the least before the adjective (more powerful, the most powerful).
Remember these two exceptions:
good – better – the best
bad – worse – the worst
far – farther/further – the farthest/furthest
much/many/a lot of – more – the most
little – less – the least
Ex. 2 Choose the correct adjective. Then fill in the gaps with the correct form of the adjective.
-
light/heavy Laptops are … than desktop computers, but … than notebooks.
-
large/small The mainframe is the … type of computer. A minicomputer is … than a microcomputer.
-
common/good Personal computers are … than mainframes but mainframes are … than personal computers at processing very large amounts of data.
-
powerful/expensive Minicomputers are … than mainframes but they are also … .
-
fast/cheap New computers are … and sometimes … than older machines.
-
powerful/expensive Laptops are often … than PCs but they are not as … .
Aids to communication
Here are some phrases to use when agreeing or disagreeing with someone.
A: (I think) The best computer for a … is … .
B: I agree. / I think so too.
C: I disagree. / I don’t think so.
Problem-solving
Ex. 1. In pairs, decide what sort of computer is best for each of these users.
-
John Wilmott is a salesperson and he spends a lot of time visiting customers. He wants a computer to carry with him so he can access data about his customers and record his sales.
-
Pal Nye is a personnel officer. She needs a computer to keep staff records and to keep a diary of appointments. She also needs a computer for writing letters.
-
The University of the North needs a computer to look after its accounts, its network, the records of all students and staff, and to help with scientific research.
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The James family want a computer for entertainment, writing letters, the Internet and for calculating tax.