Computer Knowledge Test For Students! Trivia Quiz

2.

Which is a unit of measurement used with computer systems?

1) Byte
2) Kilobyte
3) Megabyte
4) Gigabyte
5) All of the above

Correct Answer

A. 5) All of the above

Explanation

The answer is "All of the above" because all the options listed (Byte, Kilobyte, Megabyte, and Gigabyte) are units of measurement used with computer systems to measure storage capacity. Each unit represents a different magnitude of data storage, with Byte being the smallest unit and Gigabyte being the largest. Therefore, all of these units are commonly used in computer systems.

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3.

A character is represented in EBCDIC by

1) one bit
2) four bits
3) eight bits
4) sixteen bits
5) None of the above

Correct Answer

A. 3) eight bits

Explanation

In EBCDIC, a character is represented by eight bits. EBCDIC (Extended Binary Coded Decimal Interchange Code) is an 8-bit character encoding used mainly on IBM mainframe and IBM midrange computer systems. It was widely used in the past, but has been largely replaced by ASCII (American Standard Code for Information Interchange) in modern computing systems.

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4.

Which is a secondary memory device?

1) CPU
2) ALU
3) Floppy disk
4) Mouse
5) None of the above

Correct Answer

A. 3) Floppy disk

Explanation

A floppy disk is a secondary memory device because it is used for long-term storage of data. It is a portable storage medium that can be read from and written to, making it ideal for transferring and storing files. Unlike primary memory devices like the CPU and ALU, which are responsible for processing and executing instructions, a floppy disk is used solely for storage purposes. Similarly, a mouse is an input device and not a memory device. Therefore, the correct answer is 3) Floppy disk.

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5.

Which is the computer memory that does not forget?

1) ROM
2) RAM
3) PROM
4) All of the above
5) None of the above

Correct Answer

A. 1) ROM

Explanation

ROM stands for Read-Only Memory, which is a type of computer memory that retains its data even when the power is turned off. It is non-volatile memory, meaning it does not forget the stored data. Unlike RAM (Random Access Memory), which is volatile and loses data when power is lost, ROM is used to store permanent instructions or data that should not be changed. PROM (Programmable Read-Only Memory) is a type of ROM that can be programmed once, while RAM is temporary memory used for data storage during the operation of a computer. Therefore, the correct answer is ROM.

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6.

The most common binary code in use today is the 8 bit ASCII code. What do the letters ASCII stand for?

1) American Standard Code for International Interchange
2) American Standard Code for Information Interchange
3) American Standard Code for Intelligence interchange
4) American Scientific Code for Information Interchange
5) None of the above

Correct Answer

A. 2) American Standard Code for Information Interchange

Explanation

ASCII stands for American Standard Code for Information Interchange.

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7.

A computer derives its basic strength from

1) Speed
2) Accuracy
3) Memory
4) all of the above
5) None of the above

Correct Answer

A. 4) all of the above

Explanation

A computer derives its basic strength from its speed, accuracy, and memory. Speed refers to the ability of a computer to process instructions and perform tasks quickly. Accuracy refers to the computer's ability to perform tasks without errors or mistakes. Memory refers to the computer's ability to store and retrieve data. All of these factors contribute to the overall strength and effectiveness of a computer system.

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8.

A collection of eight bits is called

1) Byte
2) Word
3) Record
4) file
5) None of the above

Correct Answer

A. 1) Byte

Explanation

A collection of eight bits is called a byte. A byte is the basic unit of storage in computer systems and is commonly used to represent a single character of text or a small amount of data. It is composed of eight bits, each of which can be either a 0 or a 1. Bytes are widely used in computer programming and data storage, and multiple bytes are often used to represent larger units of information.

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9.

A BIT represents a

1) Decimal digit
2) Octal digit
3) Binary digit
4) Hexadecimal digit
5) none of these

Correct Answer

A. 3) Binary digit

Explanation

A BIT represents a binary digit. In computing, a bit is the basic unit of information and can have two possible values, 0 or 1. It is used to represent the smallest unit of data in a computer system and is the foundation of all digital data processing. The other options, such as decimal digit, octal digit, and hexadecimal digit, are not correct because they do not specifically represent the binary system.

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10.

Which can read data and convert them to a form that a computer can use?

1) Logic
2) Storage
3) Control
4) Input device
5) Output device

Correct Answer

A. 4) Input device

Explanation

Input devices are hardware devices that allow users to input data into a computer. These devices can read data from external sources and convert them into a form that a computer can understand and process. Examples of input devices include keyboards, mice, scanners, and microphones. These devices play a crucial role in enabling users to interact with a computer and provide the necessary input for various tasks and operations. Therefore, option 4) Input device is the correct answer as it accurately describes the function of devices that can read data and convert them into a usable form for a computer.

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Computer Knowledge Test For Students! Trivia Quiz

The daily processing of corrections to customer accounts best exemplifies the processing mode of:

Quiz Preview

Which is a unit of measurement used with computer systems?

A character is represented in EBCDIC by

Which is a secondary memory device?

Which is the computer memory that does not forget?

The most common binary code in use today is the 8 bit ASCII code. What do the letters ASCII stand for?

A computer derives its basic strength from

A collection of eight bits is called

A BIT represents a

Which can read data and convert them to a form that a computer can use?