1. What is hardware? 2. What is the definition of software? 3. What are
the types of software? 4. What are systems software? 5. What kind of tasks
do systems software perform? 6. Who prepares systems software? 7. What
are aplications software? 8. What problems do applications software solve?
9. What is firmware? 10. How can a computer system architect use firmware?

1)dad is angry. sister-yes,he has lost his mobile. это

everyone agrees that unless tiger population is protected ,they will become extinct.if it were not the efforts made by international campaigns the extinction would already have become a fact.it is time to cooperate and help to animals otherwise the future will be sad.supposing there were no tigers left in the world: how would we all feel? !

1. my sister is leaving to her place at the moment

2.i read this book yesterday

3. you are playing the piano tomorrow

4.we are returning from   the museum now.

5. our friends didn't see mary every day

6. the new school began to work last year

7. he often speaks to me

8. he was discussing the problem the whole morning yesterday

9.i will not be reading this article at 2 o'clock tomorrow.