- Fault (e.g. a page fault or some other exception caused by executing an instruction)
- Interrupt (e.g. a keyboard interrupt or I/O finishing)
- Trap (e.g. a system call)
<h3>How do I switch from user mode to kernel mode?</h3>
- The mode bit is set to 0 in the kernel mode. It is changed from 0 to 1 when switching from kernel mode to user mode.
- In the above image, the user process executes in the user mode until it gets a system call.
- Then a system trap is generated and the mode bit is set to zero.
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The toupper function will change a character argument from lowercase to uppercase.
<h3>What is toupper function?</h3>
The toupper() function exists utilized to convert the lowercase alphabet to uppercase. i.e. If the character passed exists in a lowercase alphabet then the toupper() function converts a lowercase alphabet to an uppercase alphabet. It exists represented in the ctype. h header file. The toupper() function in C++ converts a provided character to uppercase. It exists defined in the ctype header file.
The toupper() function transforms the lowercase letter c to the corresponding uppercase letter. Both functions return the transformed character. If the character c does not include a corresponding lowercase or uppercase character, the functions return c unchanged.
Hence, The toupper function will change a character argument from lowercase to uppercase.
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Answer:
B
Explanation:
you can sometimes drag and drop pieces of content
Answer:
A power supply tester is specifically designed to test DC voltage on most connectors coming from a PC power supply. A multimeter measures electrical properties such as voltage, amps, and resistance.
Answer:
Consumer connected devices include smart TVs, smart speakers, toys, wearables and smart appliances. Smart meters, commercial security systems and smart city technologies -- such as those used to monitor traffic and weather conditions -- are examples of industrial and enterprise IoT devices.