Tell what sentences are true and what are false. 1) A computer contains several major subsystems such as

1) A computer contains two major subsystems. 2) The main active part of a computer is CPU. 3) Instructions and data are stored in CPU. 4) Peripheral device controllers look after input devices, output devices and storage devices like disks. 5) The CPU and peripheral controllers work together to transfer information between the computer and its users.

2. Choose the right answer:

1) A computer contains several major subsystems such as:

a) the CPU and peripheral device controllers;

b) the Central Processing Unit, memory and peripheral device controllers;

c) the Central Processing Unit and memory.

2) All the components of computer work together by transferring data over …

a) the CPU;

b) the bus;

c) the memory.

3) … fetches instructions and data from the main memory as needed.

a) the CPU;

b) the peripheral controllers;

c) the subsystems.

4) Peripheral device controllers look after input devices ….

a) like printers and graphics displays;

b) like keyboards and mice;

c) like disks.

5) To transfer information between the computer and its users we need

a) the CPU and peripheral controllers;

b) the CPU;

c) peripheral controllers.

3.Complete the sentences:

1) A computer contains several major subsystems such as …. 2) The bus is …. 3) Central Processing Unit is …. 4) The Central Processing Unit (CPU) contains …. 5) Instructions and data are stored (where?) …. 6) Peripheral device controllers look after (what?) …. 7) The CPU and peripheral controllers work together to transfer information between ….

4. Answer the questions:

1) What subsystems does a computer contain? 2) What is the bus? 3) What part does calculations and controls all the other parts? 4) What does the CPU contain? 5) Where are instructions and data stored? 6) What do controllers look after? 7) why do the CPU and peripheral controllers work together? 8) What will the CPU sometimes arrange for? 9) What route does data being output follow?

5. Find as quickly as possible and read out the sentences containing the following important information:

• the function of the bus
• the CPU and its components
• peripheral device controllers

*6. Try to tell the gist of the text.