C. Short answer questions.
1. What is the need of an operating system?
2. Name the types of operating systems.
3. Differentiate between copying and moving?
4. How do you search a file or folder from the Start Menu?
5. What is the possible cause of slowing down of computer?
6. Why do keyboard and monitor should be covered if not in use?
7. Can computer virus infect hardware?
8. What are the common signs of a virus attack?
Answers
Explanation:
1. An operating system is the most important software that runs on a computer. It manages the computer's memory and processes, as well as all of its software and hardware. It also allows you to communicate with the computer without knowing how to speak the computer's language
2. Types of Operating Systems
Batch Operating System – This type of operating system does not interact with the computer directly. ...
Time-Sharing Operating Systems – Each task is given some time to execute, so that all the tasks work smoothly. ...
Distributed Operating System – ...
Network Operating System – ...
Real-Time Operating System –
3. moving” and “copying” a worksheet? When “moving” a worksheet from a folder, you will not keep the copy in the original folder. “Copying” allows you to have a copy of the worksheet in both folders. ... You can only copy them
4. Open the Start menu and type a search term in the search field at the bottom. The Search field and results in the Start menu. ...
- Click the See More Results link. The Search Results in Indexed Locations window. ...
- When you locate the file you wanted, double-click it to open it.
5. Rachel told us that software and hard drive corruption are two reasons why your computer may slow down over time. ... Two other huge culprits are not having enough RAM (memory to run programs) and simply running out of hard disk space. Not having enough RAM causes your hard drive to try to compensate for a lack of memory.
6. With this said, people often assume that the air passes through the little gaps between the keyboard keys and once you put on a keyboard cover, that gap is covered. ... 99% of the laptops out there don't use the little gaps between the keyboard keys for ventilation.
7. As a computer virus is only code, it cannot physically damage computer hardware. However, it can create scenarios where hardware or equipment controlled by computers is damaged. For example, a virus may instruct your computer to turn off the cooling fans, causing your computer to overheat and damage its hardware.
8. Frequent pop-up windows. ...
- Changes to your homepage. ...
- Mass emails being sent from your email account. ...
- Frequent crashes. ...
- Unusually slow computer performance. ...
- Unknown programs that start up when you turn on your computer. ...
- Unusual activities like password changes