Computer | MCQs

Explanation

In computer science, the levels of representation are typically shown from high-level to low-level as:

• High-level: Software (e.g., C++, COBOL, JAVA)
• Low-level: Hardware (e.g., machine code, assembly language)

Explanation

The CPU (Central Processing Unit) executes instructions and performs calculations.

This making it the primary component responsible for processing data in a computer.

Explanation

The Control Unit (CU) is the part of the computer's central processing unit (CPU) that executes instructions.

It retrieves instructions from memory, decodes them, and then carries out the required actions.

The Control Unit manages the flow of data between different parts of the computer, including the Arithmetic Logic Unit (ALU) and Main Memory.

Explanation

Numeric Pad is in Keyboard.

It is a section on the right side of a standard keyboard that contains numbers and arithmetic operators for quick data entry.

Explanation

BIOS is a type of firmware used to initialize hardware and start the boot process when a computer is powered on.

It resides on a chip on the motherboard.

Explanation

If a computer virus corrupts the File Allocation Table (FAT) on a DOS system, the operating system will be unable to retrieve any data from the disk.

The FAT is a critical data structure that keeps track of the location of files on the disk, and if it becomes corrupted, the system will not be able to access the data.

Explanation

The digital computer, capable of processing data in binary code (0s and 1s), was primarily developed in the USA.

John Vincent Atanasoff, an American-Bulgarian physicist, invented the first electronic digital computer in the 1930s at Iowa State College.

Explanation

Input, processing, output, and storage are the four primary components of the information processing cycle.

It is also known as the data processing cycle or the computer processing cycle.

Explanation

 One megabyte, or MB, is equivalent to 1024 kilobytes, or KB, in digital units of measurement.

The smallest piece of data is the bit.

The data will be transformed to its binary form.

Explanation

C++ is a high-level general-purpose programming language 

Character,  Boolean & Unsigned are most common used data types in C++.

AGM 24-12-2022