1.
Which one of the following is the main memory?
Correct Answer
A. RAM
Explanation
RAM (Random Access Memory) is the correct answer because it is a type of computer memory that is used to store data that is being actively used by the computer's processor. It is volatile memory, meaning that its contents are lost when the computer is powered off or restarted. RAM is the main memory because it is responsible for temporarily holding the data and instructions that the CPU needs to perform tasks in real-time.
2.
2^50 is referred as____________
Correct Answer
C. Peta
Explanation
2^50 is referred to as "Peta" because in the International System of Units (SI), the prefix "Peta" represents 10^15. Therefore, 2^50, which is equal to 1,125,899,906,842,624, can be expressed as 1.1259 Peta.
3.
Identify the output device.
Correct Answer
C. Monitor
Explanation
The correct answer is "Monitor." A monitor is an output device that displays visual information from a computer. It allows users to see the output of their actions, such as text, images, videos, and graphics. Keyboards and mice are input devices used to input data into a computer, while memory refers to the storage component of a computer system. Therefore, the monitor is the only option that fits the description of an output device.
4.
Which one of the following is used in ATM machines?
Correct Answer
A. Touch screen
Explanation
ATM machines commonly use touch screens as an input method for users to interact with the machine. This allows users to easily navigate through the options and select their desired transactions by simply touching the screen. Touch screens provide a user-friendly and intuitive interface, making it convenient for users to access their bank accounts and perform various transactions without the need for physical buttons or keypads.
5.
Name the volatile memory.
Correct Answer
C. RAM
Explanation
RAM stands for Random Access Memory, which is a type of volatile memory. Volatile memory refers to a type of computer memory that requires power to retain stored data. RAM allows data to be read from and written to by the computer's processor, making it a crucial component for running programs and storing temporary data. Unlike ROM (Read-Only Memory), PROM (Programmable Read-Only Memory), and EPROM (Erasable Programmable Read-Only Memory), RAM can be both read from and written to, making it the correct answer for the given question.
6.
Which refers to the number of bits processed by a computer's CPU?
Correct Answer
C. Word Length
Explanation
The word length refers to the number of bits processed by a computer's CPU. It determines the maximum size of data that can be processed in a single operation by the CPU. A larger word length allows for the processing of larger amounts of data at once, which can result in faster and more efficient computations.
7.
Which amongst this is not an octal number?
Correct Answer
C. 876
8.
Data means?
Correct Answer
A. Raw fact
Explanation
In the given options, "Raw fact" is the closest definition to the term "Data". Data refers to raw, unprocessed information or facts that are collected and analyzed to derive meaningful insights. It can be in various forms such as numbers, text, images, etc. Therefore, "Raw fact" is the correct answer as it aligns with the definition of data.
9.
Radix of Hexadecimal number is
Correct Answer
C. 16
Explanation
The radix of a hexadecimal number is 16. The term "radix" refers to the base or the number of unique digits used in a number system. In the hexadecimal system, there are 16 unique digits, which are 0-9 and A-F. Therefore, the radix of a hexadecimal number is 16.
10.
Expand POST
Correct Answer
C. Power on Self Test
Explanation
The correct answer is "Power on Self Test". This refers to the diagnostic testing that a computer performs on itself when it is powered on. It checks the hardware components to ensure they are functioning properly before the operating system is loaded.