Question Discussion & Solution

In a certain code language, 'CUTE' is written as 'BTSD'.

Similarly, 'KIND' written in that code language as

KIND is written as JHMC.

Hence, "JHMC" is the correct answer.

S.I. Unit of Pressure is Pascal,

Similarly,

S.I. Unit of Current is Ampere.

Five friends: A, C, F, U and Z.

1) F is shorter than A who is shorter than Z.

F < A < Z

2) C is shorter than F but not as shorter as U.

This means U is shorter than C.

U < C < F

Combining 1) and 2), we get:

U < C < F < A < Z

Input Devices:

• Input devices are the component of the computer system that accepts incoming data and instructions.
• It converts them into a pattern of electrical signals in binary code that is understandable to a digital computer.

Output Devices:

• Output devices are the component of a computer system that converts the digitized signals into a form understandable to the user.
• The output devices are generally known as the reverse of input devices.
• Output devices also send data from one computer system to another.

Key Points

•  A Visual Display Unit (VDU) is also referred to as a Monitor and VDU (video display unit), a monitor is an output device that displays video images and text.
• A printer is an external hardware output device that takes the electronic data stored on a computer or other device and generates a hard copy.
• A floppy disk is a type of disk storage composed of a disk of thin and flexible magnetic storage medium, sealed in a rectangular plastic enclosure lined with fabric that removes dust particles. It can be both an input and output device.​

Important Points

The Central Processing Unit (CPU):

• The CPU is the brain of the computer.
• Sometimes referred to simply as the processor or central processor, the CPU is where most calculations take place.
• The CPU executes the programs and controls the operation of all the hardware.
• A central processing unit (CPU), also called a central processor, main processor, or just processor is the electronic circuitry that executes instructions comprising a computer program.
• The CPU performs basic arithmetic, logic, controlling, and input/output (I/O) operations specified by the instructions in the program.

​Thus, CPU is not a computer output device.

Mistake Points

• The question is "Which one is not a computer output device?"
• Floppy is both input and output.
• CPU is the only option that is not an output device.

Additional Information

The basic difference between Input and Output devices:

The correct answer is Red.

Key Points

• Sulphuric acid is also known as oil of vitriol.
• It is composed of sulfur, hydrogen, and oxygen element.
• The acid has a very strong acidic nature.
• It has several uses such as fertilizer manufacture, mineral processing, oil refining, and wastewater processing.
• It is also known by the name hydrogen sulfate.

Important Points 

• The litmus solution is a purple dye solution.
• It is extracted from the plant called " Lichen".
• It is used as an acid-base indicator.