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grigory [225]
3 years ago
6

A power supply serves as both a rectifier and transformer to convert AC house current to DC and to step down voltage from 110 V

or 220 V to 50, 30, or 20 volts.
Computers and Technology
1 answer:
ohaa [14]3 years ago
8 0

Answer:

True

Explanation:

A computer can be defined as an electronic device that is capable of receiving of data in its raw form as input and processes these data into information that could be used by an end user.

Generally, a computer is composed of five (5) main components and these include;

I. Input unit.

II. Output unit.

III. Central processing unit (CPU).

IV. Storage (memory) unit.

V. Power supply unit (PSU).

A power supply also referred to as power supply unit (PSU) can be defined as a hardware component of a computer that converts and step-down the domestic alternating current (AC) electrical power to a low-voltage regulated direct current (DC) power, so that the internal components of a computer can be supplied with power.

Hence, the power supply unit (PSU) serves as a rectifier by converting alternating current (AC) house current to direct current (DC) and as a transformer to step-down voltage from 220 Volts or 110 Volts to 50, 30, or 20 Volts depending on the requirements of a computer.

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Certain files, such as the ____ and Security log in Windows, might lose essential network activity records if power is terminate
Hoochie [10]

Answer:

The answer to this question is a. Event log

Explanation:

Event log in Windows is a comprehensive record of security,system and application notifications stored by the Windows and it is used by administrators to determine problems in the system and foretell issues that going to happen in future.

Operating system and the Apps use event logs to keep account of important software and hardware activity that administrator can use to correct issues with the operating system.

7 0
3 years ago
The isometric projection camera technique provides an illusion of perspective by using things like parallax scrolling to create
Oksi-84 [34.3K]

Answer:

False.  

Explanation:

In this question some information is missing the question does not mention which type of question is this. This question is a true/false type question.

isometric projection camera is an engineer or the technical drawing in which we represented the 3D(three dimensional) objects in the 2D(Two dimensional) objects. This camera representing the object in a visual manner. isometric projection is also known as Isometric drawing, In the isometric projection camera, all the angles are equal. It does not provide an illusion perspective by using parallax scrolling to create the illusion of 3D in a 2D game.

3 0
3 years ago
You are going to write a program for Computer test which will read 10 questions from a file, order them randomly and provide the
ollegr [7]

Answer:

from pprint import pprint

import random

match = {

   "mcq1": "a",

   "mcq2": "c",

   "mcq3": "c",

   "mcq4": "d",

   "mcq5": "a",

   "mcq6": "a",

   "mcq7": "a",

   "mcq8": "b",

   "mcq9": "d",

   "mcq10": "a"

}

file = open("test","r")

questions = set()

for i in range(10):

   ques = []

   for line in file:

       if "-" in line:

           break

       else:

           ques.append(line)

   questions.add(tuple(ques))

def quiz(questions, match):

   questions = list(questions)

   marks = 0

   for i in range(10):

       pprint(questions[i])

       mcq = "mcq",str(i+1)

       mcq = list(mcq)

       answer = input("enter your answer: ")

       if answer == match["".join(mcq)]:

           marks += 1

   return marks

print("Your score is: ",quiz(questions, match))

Explanation:

the file which has been loaded is test, and its data is provided below...

mcq1. The device which converts analog signals to digtital signals and vice versa is called.

a) mother board

b) TAP

c) Modem

d) I/O device

-

mcq2. The main components of a computer system are.

a) TAP, CPU, Printer

b) CPU, Input device

c) CPU, ALU, CU

d) CPU , Output device , Memory unit, Control unit

-

mcq3. A source program is a program.

a) writter in machine laguage

b) translated in machine langaue

c) written in high level language

d) required to boot a computer

-

mcq4.Which image format supports transparency in images.

a) PNG

b) GIF

c) JPG

d) A & B

-

mcq5. (10111) 2 = (?) 10.

a) 23

b) 50

c) 24

d) 89

-

mcq6. UNICODE is an example of.

a) character encoding set

b) driver

c) software

d) database

-

mcq7. (10111) 2 = (?) 10.

a) 23

b) 50

c) 24

d) 89

-

mcq8. NTFS stand for.

a) Network File Saving

b) New Technology File System

c) Newt Trend File Saving

d) Non Technology File System

-

mcq9. FF is example of.

a) Octal number system

b) Binary Number System

c) Decimal Number System

d) Hexadecimal number system

-

mcq10. Emails are sent with the help of ?

a) SMTP

b) FTP

c) HTTP

d) UDP

-

3 0
3 years ago
Which of these is NOT a standard part of the outro of a podcast?
Lisa [10]

Answer:

final thoughts

Explanation:

it is generally what we should do so that people can know what your opinion on it at the end

7 0
3 years ago
Assuming dataFile is an ofstream object associated with a disk file named payroll.dat, which of the following statements would w
svet-max [94.6K]

Answer:

dataFile << salary;

Explanation:

To write salary to a file (payroll.dat) using ofstream, you make use of the following instruction:

<em>ofstream dataFile; </em>

<em>myfile.open ("payroll.dat"); </em>

<em>myfile <<salary; </em>

<em>myfile.close();</em>

<em />

This line creates an instance of ofstream

<em>ofstream dataFile; </em>

This line opens the file payroll.dat

<em>myfile.open ("payroll.dat"); </em>

This is where the exact instruction in the question is done. This writes the value of salary to payroll.dat

<em>myfile <<salary; </em>

This closes the opened file

<em>myfile.close();</em>

<em />

<em />

8 0
3 years ago
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