### Definitions of Key Computer Technology Terms**1. Computer:**A computer is an electronic device that manipulates information or "data." It has the ability to store, retrieve, and process data. Computers can be used to type documents, send emails, play games, and browse the Web. They are also used to handle complex calculations, data analysis, and simulations for scientific research.**2. Hardware:**Hardware refers to the physical components of a computer system. This includes the central processing unit (CPU), monitor, keyboard, mouse, hard drives, and other components like graphic cards, memory sticks, and power supply units. Essentially, hardware encompasses everything you can touch in a computer system.**3. Memory:**Memory in computers usually refers to physical devices used to store information for use in a computer or other digital electronic devices. It is a crucial component that enables a computer to store temporary (RAM) and permanent (ROM) data. Memory can be volatile, meaning it requires power to maintain the stored information (RAM), or non-volatile, meaning it retains data even when no power is supplied (ROM).**4. Read-Only Memory (ROM):**Read-Only Memory (ROM) is a type of non-volatile memory used in computers and other electronic devices. Data stored in ROM can only be read; it cannot be modified or erased easily. ROM is typically used to store firmware, which is the software that runs low-level operations of the hardware. This makes ROM critical for the boot-up processes of computers and other devices.

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How would you define computer, hardware, memory, and read-only memory (ROM)? What are the definitions of these terms?

Database System Concepts

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Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

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Chapter1: Introduction

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Concept explainers

Computer Fundamentals

The computer is termed computation. For calculating or computing something the device that has been used is known as the computer. Or we can say that for performing a fast arithmetic operation the device that has been used is a computer. Storing, processing, and retrieving are the main features of a computer. 

Question

### Definitions of Key Computer Technology Terms

**1. Computer:**
A computer is an electronic device that manipulates information or "data." It has the ability to store, retrieve, and process data. Computers can be used to type documents, send emails, play games, and browse the Web. They are also used to handle complex calculations, data analysis, and simulations for scientific research.

**2. Hardware:**
Hardware refers to the physical components of a computer system. This includes the central processing unit (CPU), monitor, keyboard, mouse, hard drives, and other components like graphic cards, memory sticks, and power supply units. Essentially, hardware encompasses everything you can touch in a computer system.

**3. Memory:**
Memory in computers usually refers to physical devices used to store information for use in a computer or other digital electronic devices. It is a crucial component that enables a computer to store temporary (RAM) and permanent (ROM) data. Memory can be volatile, meaning it requires power to maintain the stored information (RAM), or non-volatile, meaning it retains data even when no power is supplied (ROM).

**4. Read-Only Memory (ROM):**
Read-Only Memory (ROM) is a type of non-volatile memory used in computers and other electronic devices. Data stored in ROM can only be read; it cannot be modified or erased easily. ROM is typically used to store firmware, which is the software that runs low-level operations of the hardware. This makes ROM critical for the boot-up processes of computers and other devices.

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