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inessss [21]
3 years ago
14

What is the purpose of system calls, and how do system calls relate to the OS and to the concept of dual-mode (kernel-mode and u

ser-mode) operation?
Computers and Technology
1 answer:
barxatty [35]3 years ago
4 0

Answer:

With the use of API.

Explanation:

The computer system is an electronic device that comprises of the interaction of the hardware and software components of its system. The software component of the system controls all activities of the hardware and other application software interface.

The operating system is that software in the system that controls all system activities. It uses the kernel interface to connect directly to the hardware and create a platform for running application or user softwares.

The user software is used to run one specific task on the system. Sometimes, it seeks to kernel mode from the operating system, to use a hardware component, by the use of API or application program interface.

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An index purports to speed data retrieval. you, therefore, index every attribute in each table. select the likely consequence.
stira [4]

Answer:

b. data entry slows as every INSERT , UPDATE, or DELETE statement must also update every index.

Explanation:

This process help to improve the speed of get data , it takes each element in the indexed column and save the location to get faster the data. But if you index every attribute in a table it going to take a lot of time locating each column in the respective index in each query(update, delete and insert). For that reason is necesary be carefull with this process and only put index in the relevant columns

4 0
3 years ago
Paragraph on how atms work
Natalija [7]
ATM (Automatic Teller Machine) is a banking terminal that accepts deposits and dispenses cash. ATMs are activated by inserting cash (in cases of ATM Depositing) or debit /credit card that contain the user's account number and PIN on a magnetic stripe (for cash withdrawals)
7 0
3 years ago
William found out that someone used his report on American culture without his permission. What is William a victim of?
Mnenie [13.5K]

He is a victim of plagiarism.

Plagiarism is when someone steals someone else's work, to help benefit themselves. Taking credit for the other person work.

Hope this helps!

3 0
3 years ago
Read 2 more answers
Three healthcare firms jointly own and share the same cloud resources to meet their computing needs. Which cloud model does this
Stels [109]

Answer:

yes

Explanation:

yall share the same thing

5 0
2 years ago
If i don't update my computer what threat does my computer face?
Nadusha1986 [10]
Hey there! Hello!

Computer updates, especially smaller security updates, contain security information for new bugs, malware, viruses, etc. that have been written since your last update. So many of these are written for computers at any given time, meaning that keeping your computer updated is a significant step in keeping your computer's defense systems working. Paired up with legit anti-malware, virus protection software, good computer knowledge, and common sense, your computer can remain very safe from these viruses. 

Otherwise, there might be some bug or irregularity within your computer's system itself that was accidentally released an update or two ago by the creators of your computer's software, which may also pose a threat for your computer system. Updating your computer can most likely fix problems like these. But, more commonly, they just keep your computer up to date on the vicious computer threats that are now available for it since the previous update. 

Hope this helped you out! Feel free to ask me any additional questions if you have any. :-)

8 0
3 years ago
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