Common Problem
What is the memory called that can store the basic programs needed to start a computer?
What is the memory called that can store the basic programs needed to start a computer?
The memory that can store the basic programs required to start the computer is called read-only memory (ROM). The main function of the read-only memory is to complete the power-on self-test of the system, initialization of each functional module in the system, basic input/output driver of the system and boot operating system.
Read-Only Memory (ROM) works in a non-destructive readout mode and can only read information but cannot write it. Once the information is written, it is fixed and will not be lost even if the power is turned off, so it is also called fixed memory. The data stored in ROM is usually written before being loaded into the whole machine. It can only be read out during the operation of the whole machine. Unlike random access memory, the stored content can be rewritten quickly and conveniently. The data stored in ROM is stable and will not change after a power outage. It has a simple structure and is easy to use, so it is often used to store various fixed programs and data.
Except for a few types of read-only memories (such as character generators) that can be used universally, different types of read-only memories have different functions. In order to facilitate user use and mass production, different types such as programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), and electrified erasable programmable read-only memory (EEPROM) have been further developed. ROM is widely used. The hardware used in the startup program (operating system) of early personal computers such as Apple II or IBM PC XT/AT or the firmware in various other microcomputer systems is ROM.
The characteristic of read-only memory is that it can only read information but cannot write information. Usually, a basic input/output system is solidified in the ROM of the computer motherboard, called BIOS (Basic Input Output System). Its main function is to complete the power-on self-test of the system, initialization of each functional module in the system, basic input/output driver of the system and boot operating system.
For more related knowledge, please visit: PHP Chinese website!
The above is the detailed content of What is the memory called that can store the basic programs needed to start a computer?. For more information, please follow other related articles on the PHP Chinese website!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
What is the main difference between semiconductor read-only memory and semiconductor random access memory?
Dec 09, 2020 am 09:57 AM
The main difference is that semiconductor read-only memory ROM can store information permanently, while semiconductor random access memory RAM will lose information when the power is turned off. The characteristic of ROM is that it can only read information but cannot write information; and the content will not be lost after power is turned off, and it will automatically restore after powering on. The characteristic of RAM is its fast reading and writing speed. Its biggest disadvantage is that the contents inside it disappear immediately after the power is turned off.
What are the characteristics of cache, rom and ram?
Aug 26, 2022 pm 04:05 PM
Characteristics of cache: A one- or two-level high-speed, small-capacity memory set between the CPU and the main memory. The information is naturally lost when the computer is powered off. Characteristics of ROM: it can only read data from the memory, but cannot write information into it. The data will still exist after the computer is powered off. Characteristics of ram: it can read data from the memory and write information to the memory; it is used to store commands, programs and data required to run the program; information is naturally lost when the computer is powered off.
What are the characteristics of rom memory
Nov 29, 2022 am 11:29 AM
The characteristic of ROM memory is that it can only read data from the memory, but cannot write information into it. The data will still exist after the computer is powered off. ROM read-only memory can only read information but cannot write information. Usually a basic input/output system is solidified in the ROM of the computer motherboard, called BIOS (Basic Input Output System); its main function is to complete the automatic power-on of the system. Inspection, initialization of each functional module in the system, basic input/output driver of the system and booting the operating system.
What kind of memory is rom?
Dec 09, 2020 am 11:04 AM
rom is read only memory. Read-only memory works in a non-destructive read-out manner and can only read information but not write it. Once the information is written, it is fixed and will not be lost even if the power is turned off, so it is also called fixed memory.
The difference between ram and rom
Jan 08, 2024 am 10:51 AM
Difference: 1. RAM is random access memory, which is a kind of memory used to temporarily store data and instructions in computers, while ROM is read-only memory, which can only read pre-stored data but cannot write data. Memory; 2. RAM is mainly used to store programs and data used during short-term operation, while ROM is often used to store fixed programs and data, such as operating system boot programs, important parameter settings, etc.; 3. RAM can For reading and writing, the stored content can be changed at any time, while the data in ROM can only be read and cannot be modified.
What is the main difference between RAM and ROM?
Feb 24, 2024 pm 11:09 PM
RAM and ROM are two common types of memory in computers. Although their names are similar, their functions and features are quite different. First, RAM (Random Access Memory) is a type of temporary memory used to store and retrieve data while the computer is running. It is called "random access" because it can randomly access any location in memory. RAM generally has faster read and write speeds and shorter access times, allowing the computer to execute programs and manipulate data faster. However, RAM data is volatile and also
What cannot be modified using instructions in the microcomputer's internal memory
Jan 15, 2021 pm 02:17 PM
In the internal memory of a microcomputer, instructions cannot be used to modify the storage contents of the ROM part. The data stored in read-only memory ROM is usually written before being loaded into the whole machine. Once the information is written, it is fixed and can only be read out during the operation of the whole machine. Unlike random access memory, the storage content can be quickly and easily rewritten. The data stored in ROM is stable and will not change after a power outage. It has a simple structure and is easy to use, so it is often used to store various fixed programs and data.
What memory are ram and rom?
Feb 20, 2024 am 09:32 AM
RAM (RandomAccessMemory, random access memory) and ROM (ReadOnlyMemory, read-only memory) are common memory types in computers. Although they are both used to store data, they have some significant differences in functionality and features. RAM (Random Access Memory): RAM is a type of volatile memory, which means that the data in it is lost when the power is turned off. This is because RAM uses capacitors to store data, and capacitors can only store data when current