Answer:
All of the above.
Explanation:
An operating system is a system software pre-installed on a computing device to manage or control software application, computer hardware and user processes.
This ultimately implies that, an operating system acts as an interface or intermediary between the computer end user and the hardware portion of the computer system (computer hardware) in the processing and execution of instructions.
Some examples of an operating system on computers are QNX, Linux, OpenVMS, MacOS, Microsoft windows, IBM, Solaris, VM etc.
Hence, the operating system (OS) provides utility software designed to perform specific tasks. Some of the tasks it performs are;
A. Establishing an Internet connection.
B. Coordinating tasks between programs.
C. Configuring peripheral devices.
D. Monitoring security.
A virus or malware appearing/pretending to be a legitimate program is called a Trojan.
Answer:
for(var i=0; i<3; i++) {
penUp();
moveTo(100,120);
turnTo(180);
penDown();
moveForward(25);
}
Explanation:
The i variable is the loop dummy. The code block will be executed 3 times.
Answer:
In these conditions sampling becomes necessary or convenient as it allows data collection within time limit and with less efforts.
Answer: (A) Executive level
Explanation:
The executive level is basically involve with the decision as, the most elevated level officials in senior administration for the most part have titles starting with "head" framing what is regularly known as the C-suite.
The CEO (chief executive officers), CFO ( Chief financial officer and the COO (Chief operation officer), these are the main three traditional officers and these are essentially engaged with the future arranging of association and the organization monetary status.