Answer:
1.84
Explanation:
Operation on old system
Add operation = 50% = 0.5
Multiply = 30% = 0.3
Divide = 20% = 0.2
T = total execution time
For add = 0.5T
For multiplication = 0.3T
For division = 0.2T
0.5T + 0.3T + 0.2T = T
For new computer
Add operation is unchanged = 0.5T
Multiply is 10 times faster = 0.3T/10 = 0.03T
Divide is 15 times faster = 0.2T/15= 0.0133T
Total time = 0.5T + 0.03T + 0.0133T
= 0.54333T
Speed up = Old time/ new time
= T/0.54333T
= 1/0.54333
= 1.84
The question above contains multiple choices;
<span>a.
</span>Application
<span>b.
</span>Recovery
<span>c.
</span>Backup
<span>d.
</span>System
The answer is d) System software.
The system software consists of the
operating systems and utility programs which are usually preinstalled. The
operating system controls how a PC system functions. Utility programs, on the
other hand, perform general tasks for the computer like system maintenance and
file compression.
There are lots of different peripherals of computer systems. Some examples are listed below:
Input:
Keyboard
Mouse
Video Camera
Microphone
Joystick
Scanner
Output:
Monitor
Projector
Printer
Speakers
Any external device that gives input to or gets output from the computer is a peripheral.
Answer:
C
Explanation: This is because not every area is structured on the same ground as other places.
D tab that is the key you would need to use in order to do that
