1.
Properly arranged data is called
Correct Answer
C. Information
Explanation
Properly arranged data is commonly referred to as information. Information is organized, structured, and meaningful data that can be easily interpreted and used for various purposes. It is the result of processing and analyzing data to derive insights and make informed decisions. Therefore, out of the given options, "Information" is the correct term to describe properly arranged data.
2.
A physical connection between the microprocessor memory and other parts of the microcomputer is known as
Correct Answer
B. Address Bus
Explanation
The correct answer is Address Bus. In a microcomputer, the address bus is responsible for carrying the memory addresses from the microprocessor to the memory and other peripheral devices. It serves as a physical connection that allows the microprocessor to communicate with different parts of the microcomputer system. The address bus is crucial for the microprocessor to access and retrieve data from specific memory locations.
3.
The brain of any computer system is
Correct Answer
C. CPU
Explanation
The brain of any computer system is the CPU (Central Processing Unit). The CPU is responsible for executing instructions, performing calculations, and coordinating the activities of all the other hardware components in the computer. It acts as the control center of the computer system, processing data and performing operations based on the instructions stored in memory. The ALU (Arithmetic Logic Unit) is a component of the CPU that performs arithmetic and logical operations, while memory stores data and instructions for the CPU to access. The Control Unit manages the execution of instructions and coordinates communication between different components. However, it is the CPU that ultimately controls and executes all the operations in a computer system.
4.
Each model of a computer has a unique
Correct Answer
B. Machine Language
Explanation
Each model of a computer has a unique machine language. Machine language is a low-level programming language that consists of binary code and is specific to a particular computer architecture. It is the most basic form of programming language that directly communicates with the computer's hardware. Each computer model has its own machine language instructions that are designed to work with its specific hardware components. Therefore, the correct answer is machine language.
5.
Interface electronic circuit is used to interconnect i/o devices to a computer's CPU or
Correct Answer
B. Memory
Explanation
An interface electronic circuit is used to connect input/output devices to a computer's CPU or memory. This allows the CPU to communicate with the devices and exchange data. The memory is responsible for storing and retrieving data, so it makes sense for the interface circuit to be connected to the memory. By connecting the devices to the memory, the CPU can access and manipulate the data stored in memory, enabling the computer to perform various tasks and operations.
6.
One of the main feature that distinguishes microprocessors from micro-computers is
Correct Answer
C. Microprocessor does not contain I/O devices
Explanation
Microprocessors are the central processing units (CPUs) of computers and are designed to perform a specific set of tasks. Unlike micro-computers, which are complete computer systems with input/output (I/O) devices such as keyboards, monitors, and storage devices, microprocessors do not have built-in I/O devices. They are only responsible for executing instructions and performing calculations, relying on external devices for input and output operations. This feature distinguishes microprocessors from micro-computers.
7.
The arranging of data in a logical sequence is known as
Correct Answer
A. Sorting
Explanation
Sorting is the correct answer because it involves arranging data in a logical sequence. It is the process of organizing data in a particular order, such as ascending or descending, based on certain criteria. This allows for easier retrieval and analysis of the data. Classifying refers to categorizing data into different groups or classes, reproducing refers to creating copies of data, and summarizing involves condensing data into a concise form.
8.
Central Processing Units is a combination of
Correct Answer
D. Arithmetic logic and control unit
Explanation
The correct answer is Arithmetic logic and control unit. The Central Processing Unit (CPU) consists of multiple components, including the Arithmetic Logic Unit (ALU) and the Control Unit. The ALU performs mathematical and logical operations, while the Control Unit manages and coordinates the activities of the other components of the CPU. Therefore, the combination of the Arithmetic Logic Unit and the Control Unit forms the Central Processing Unit.
9.
The brain of any computer is
Correct Answer
C. Central Processing Unit
Explanation
The brain of any computer is the Central Processing Unit (CPU). The CPU is responsible for executing instructions and performing calculations. It acts as the control center of the computer, coordinating and managing the activities of all other hardware components. The CPU contains the Control Unit, which directs the flow of data and instructions, and the Arithmetic Logic Unit, which performs mathematical and logical operations. The Storage Unit, on the other hand, is responsible for storing and retrieving data, while the CPU processes it. Therefore, the correct answer is Central Processing Unit.
10.
.Pick the one that is used for logical operations or comparisons such as less than or equal to or greater than
Correct Answer
A. Arithmetic and Logic Unit
Explanation
The correct answer is Arithmetic and Logic Unit. The Arithmetic and Logic Unit (ALU) is responsible for performing logical operations and comparisons such as less than or equal to or greater than. It is a component of the central processing unit (CPU) that carries out arithmetic and logical operations on binary numbers. The ALU performs tasks such as addition, subtraction, multiplication, division, and logical operations like AND, OR, and NOT. It is an essential part of the CPU that enables the execution of logical operations and comparisons in a computer system.
11.
Analog computer works on the supply of
Correct Answer
A. Continuous electrical pulses
Explanation
An analog computer works by continuously processing and manipulating continuous electrical pulses. These pulses represent and manipulate continuous physical quantities, such as voltage or current, in order to perform calculations and solve mathematical problems. Unlike digital computers that use discrete binary values, analog computers work with continuous signals to provide real-time and precise results. This continuous nature of electrical pulses is essential for the functioning of an analog computer.
12.
A computer that processes both analog and digital is known as
Correct Answer
C. Hybrid Computer
Explanation
A computer that processes both analog and digital information is known as a hybrid computer. This type of computer combines the capabilities of analog computers, which work with continuous data and physical quantities, and digital computers, which process discrete data and perform calculations using binary digits. A hybrid computer is designed to handle a wide range of tasks, from complex scientific simulations that require analog processing to data analysis and computation tasks that require digital processing. It offers the advantages of both types of computers, making it a versatile and powerful computing system.
13.
Which of the following are the two main components of the CPU
Correct Answer
C. Control Unit and ALU
Explanation
The CPU, or Central Processing Unit, is responsible for executing instructions and performing calculations in a computer system. The two main components of the CPU are the Control Unit and the ALU (Arithmetic Logic Unit). The Control Unit is responsible for coordinating and controlling the operations of the CPU, while the ALU performs mathematical and logical operations. Together, these two components work in tandem to carry out the instructions and process data within the computer system. Therefore, the correct answer is Control Unit and ALU.
14.
The two basic types of record access methods are
Correct Answer
A. Sequential and Random
Explanation
The correct answer is Sequential and Random. These are the two basic types of record access methods. Sequential access involves accessing records in a sequential order, one after the other. Random access, on the other hand, allows direct access to any record in the file, without having to go through all the preceding records. Both methods have their advantages and are used in different scenarios depending on the requirements of the application.
15.
Different components on the mother board of a PC unit are linked together by sets of parallel electrical conducting lines. What are these lines called?
Correct Answer
C. Connectors
Explanation
The lines that link different components on the motherboard of a PC unit are called connectors. Connectors are used to establish electrical connections between various devices such as the CPU, memory, storage devices, and expansion cards. These connectors allow data and power to be transmitted between the different components, enabling them to communicate and work together effectively.
16.
Which of the following types of memories need a refresh
Correct Answer
B. DRAM
Explanation
DRAM (Dynamic Random Access Memory) is a type of memory that requires a refresh because it stores data in capacitors, which gradually lose their charge over time. In order to retain the stored data, DRAM needs to be refreshed periodically. On the other hand, SRAM (Static Random Access Memory) does not require a refresh as it uses flip-flops to store data, which do not lose their state. ROM (Read-Only Memory) is a non-volatile memory that does not need to be refreshed as it contains permanent data that is not altered during normal operation. Therefore, the correct answer is DRAM.
17.
Access time is
Correct Answer
A. seek time + latency time
Explanation
The access time of a storage device is the sum of the seek time and the latency time. Seek time refers to the time it takes for the read/write head of a disk to move to the desired location, while latency time is the time it takes for the desired data to rotate under the read/write head. Therefore, the correct answer is "seek time + latency time".
18.
Seek time is
Correct Answer
A. time to position the head over the proper track
Explanation
The seek time refers to the time it takes for the read/write head of a hard disk drive to move to the correct track on the disk. This means that the head is being positioned over the proper track before any data can be read or written. Therefore, the correct answer is "time to position the head over the proper track."
19.
Latency Time is
Correct Answer
A. time to spin the needed data under head
Explanation
The correct answer is "time to spin the needed data under head." This refers to the amount of time it takes for the required data to be positioned under the read/write head of a storage device, such as a hard disk drive. The latency time includes the time it takes for the disk to rotate and for the read/write head to move to the correct position.
20.
Which of the following is not a computer language
Correct Answer
B. Low level language
Explanation
The correct answer is "Low level language". Low level language refers to a programming language that is closer to machine code and is more difficult for humans to understand and write. It directly interacts with the hardware of the computer. High level languages, on the other hand, are more user-friendly and easier to understand and write. Medium level language is not a commonly used term in computer programming, so it is not a correct answer.
21.
Machine language is
Correct Answer
A. Machine dependent
Explanation
Machine language is the lowest level programming language that directly communicates with the hardware of a specific computer system. It is specific to the architecture and design of the machine it is programmed for, making it machine dependent. This means that machine language programs written for one type of computer system may not work on another type of computer system without modifications. Therefore, the correct answer is "machine dependent".
22.
A compiler is a translating program which
Correct Answer
D. All of these
Explanation
A compiler is a translating program that performs multiple tasks. It translates instructions of a high-level language into machine language, allowing the computer to understand and execute the program. It also translates the entire source program into a machine language program, ensuring that all the code is converted accurately. Additionally, a compiler is not involved in program execution itself; its main role is to convert the code into a format that can be executed by the computer. Therefore, the correct answer is "all of these" as it encompasses all the mentioned functions of a compiler.
23.
What statement is valid in case of an Interpretor
Correct Answer
A. It translates one instruction at a time
Explanation
An interpreter is a program that translates and executes one instruction at a time. Unlike a compiler, which translates the entire program into object code before execution, an interpreter works on a line-by-line basis. This allows for immediate feedback and debugging during the execution process. The other options, such as saving object code for future use and not requiring repeated interpretation, are not necessarily true for all interpreters.
24.
.A name or number that is used to identify a storage location device
Correct Answer
C. An Address
Explanation
An address is a name or number that is used to identify a storage location device. In computer systems, addresses are used to locate specific locations in memory or storage devices. Therefore, an address serves as a unique identifier for a storage location device.
25.
The basic difference between memory and storage is, While the memory is ____________ and storage is_________
Correct Answer
A. Temporary, permanent
Explanation
Memory refers to the temporary storage of data that is currently being used by the computer. It is volatile, meaning that its contents are lost when the power is turned off. Storage, on the other hand, refers to the permanent storage of data that is not currently being used. It is non-volatile, meaning that its contents are retained even when the power is turned off. Therefore, the basic difference between memory and storage is that memory is temporary, while storage is permanent.