1.
The First Computer invented
Correct Answer
B. 1942
2.
Microphone is a
Correct Answer
A. Input device
Explanation
A microphone is classified as an input device because it is used to capture sound and convert it into an electrical signal that can be processed by a computer or audio device. It allows users to input their voice or any other sound into a computer or recording device for various purposes such as communication, recording, or voice recognition. Therefore, a microphone is an input device that enables the user to input audio into a computer system.
3.
ROM is permanent memory and cannot be erased.
Correct Answer
A. True
Explanation
ROM, or Read-Only Memory, is a type of memory that is programmed during manufacturing and cannot be altered or erased by normal computer operations. It contains instructions and data that are permanently stored and can only be read by the computer. Unlike other types of memory, such as RAM, ROM retains its contents even when the computer is powered off. Therefore, the statement that ROM is permanent memory and cannot be erased is true.
4.
1 GB is equal to
Correct Answer
B. 1024 MB
Explanation
1 GB is equal to 1024 MB because in computing, the binary system is used to calculate memory sizes. In this system, each unit is a power of 2. 1 GB is equal to 2^30 bytes, and 1 MB is equal to 2^20 bytes. Therefore, to convert from GB to MB, we multiply by 1024 (2^10) to account for the difference in units.
5.
What is folder?
Correct Answer
B. Folder is the collection of files
Explanation
A folder is a collection of files. Folders are used to organize and store related files in a hierarchical structure. They provide a way to group and manage files, making it easier to locate and access them. Folders can contain various types of files, such as documents, images, videos, and more. By organizing files into folders, users can maintain a systematic and structured approach to file management.
6.
Windows is an operating system that runs the computer.
Correct Answer
A. True
Explanation
Windows is indeed an operating system that is designed to run on computers. It provides a user-friendly interface and manages various hardware and software components of the computer system. Windows is developed by Microsoft and is one of the most widely used operating systems globally.
7.
Start Menu changes can be done through
Correct Answer
C. Task Bar
Explanation
The correct answer is Task Bar because changes to the Start Menu can be made by customizing the Task Bar settings. The Task Bar provides options to modify the appearance and behavior of the Start Menu, such as adding or removing shortcuts, rearranging tiles, and adjusting the size and position of the Start button. The Task Bar acts as a central hub for managing various aspects of the Windows operating system, including the Start Menu.
8.
Network is:
Correct Answer
B. Network is collection of computers and devices connected together
Explanation
The correct answer is "Network is collection of computers and devices connected together". This answer accurately describes a network as a system where multiple computers and devices are interconnected, allowing them to communicate and share resources. This definition aligns with the commonly understood concept of a network in the field of computer science and information technology.
9.
BCC means Back-Up Carbon Copy.
Correct Answer
B. False
Explanation
BCC actually stands for "Blind Carbon Copy". It is a feature in email that allows the sender to send a copy of the email to recipients without the knowledge of other recipients. This is often used to protect the privacy of recipients or to send the same email to multiple recipients without revealing their identities to each other. Therefore, the given statement is incorrect.
10.
Yahoo is a
Correct Answer
B. Website
Explanation
Yahoo is a website because it is a collection of web pages that are interconnected and accessed through the internet. It provides various services and features such as search engine, email, news, and entertainment. Users can access Yahoo by typing its URL in a web browser and navigate through its pages using hyperlinks. It is designed to be publicly accessible and can be accessed by anyone with an internet connection.
11.
CC means Carbon Copy.
Correct Answer
A. True
Explanation
CC stands for Carbon Copy, which is a term commonly used in email communication. When you add someone's email address in the CC field, it means that you are sending them a copy of the email for their information. Therefore, the given statement that CC means Carbon Copy is true.
12.
How to change your Password of Yahoo Mail?
Correct Answer
C. Go Through Your Account info and change your password
Explanation
The correct answer is "Go Through Your Account info and change your password." This option is the most logical and common way to change a password for any online account. By accessing the account info, users can find the necessary settings to change their password. The other options mentioned, such as going through mail, profile, or privacy, do not specifically indicate the process of changing the password.
13.
What does WWW stand for?
Correct Answer
A. World Wide Web
Explanation
The correct answer is "World Wide Web." The acronym WWW stands for World Wide Web, which refers to the system of interconnected hypertext documents accessed through the internet. It is a global network of information that allows users to navigate and access various websites and web pages. The World Wide Web revolutionized the way people communicate, share information, and conduct business online.
14.
Generally how many types of computer do we have?
Correct Answer
C. 3
Explanation
There are generally three types of computers: desktop computers, laptop computers, and mobile devices. Desktop computers are larger and designed to stay in one place, while laptops are portable and can be easily carried around. Mobile devices, such as smartphones and tablets, are small and portable computers that can be used on the go. Therefore, the correct answer is 3.
15.
One of below companies made PC computer for the first time?
Correct Answer
D. IBM
Explanation
IBM is the correct answer because they were the first company to create and introduce a personal computer (PC) to the market. In 1981, IBM released the IBM 5150, which became widely successful and set the standard for future PC designs. This innovation revolutionized the computer industry and paved the way for the modern PC we use today. Dell, Compaq, and HP are all well-known computer companies, but they entered the market after IBM had already established the PC.