READ the text and choose the correct answer. When you have answered the last question you will see the result of your test. If your score is less than 80%, repeat the Unit 2.
Computers
"A computer is a machine that can handle huge amounts of information at an incredible speed. Computers do not have brains, feelings, or the ability to solve their own problems; they can only solve problems they have been programmed to solve. A typical computer system might have a monitor, keyboard, printer, internal disk drive, hard disk drive, CD-ROM drive, and speakers. A computer performs four tasks : Receiving input such as figures, facts, or sets of instructions; Storing information by placing it in its memory; Processing the data by acting on the information; and Outputting the information by generating the results of the processing." (From http://human.riu.ac.th)
Are computers fast or slow in manipulating information?
They are fast.
They are slow.
They are.
It is fast.
Can computers handle big quantities of data?
No, they can handle exclusively small quantities of data.
No, they can't.
Yes, they can handle very big amounts of data.
Yes, they can but only in the morning.
Do computers have brains?
No, they don't.
No, they aren't.
Yes, they do.
Yes, they are.
Can computers feel emotions?
No, they can't because they are machines.
Yes, they can because they are machines.
No they can't because they don't have time.
Yes, they can because they have a lot of free time.
Can computers solve a problem without a program?
Yes.
No.
Sometimes.
Always.
What is the name of the person who creates a program?
Leader.
Hacker.
Manager.
Programmer.
What is the opposite of input?
Output.
Put-in.
Push.
Pull.
Where does a computer store information?
In its keyboard.
In its monitor.
In its memory.
In its mouse.
Are outputs the results or the initial data of the processing?
They are the results of the processing.
They are the initial data inserted into the computer.
They are the initial information typed into the computer.
They are the data cancelled during the processing.
What are the four fundamental tasks that a computer performs?
A computer 1) enters data and/or instructions, 2) processes them, then 3) stores and/or 4) sends data out as a result of the processing.
A computer 1) writes information and instructions, 2) sends them to the monitor, 3) memorizes them in an electronic diary and 4) reads them.
A computer 1) draws pictures, 2) writes documents, 3) records music, and 4) translates from English into Italian and vice versa.
Computers' fundamental tasks are only two: writing and printing fast.