Preview

RAM & ROM

Satisfactory Essays
Open Document
Open Document
273 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
RAM & ROM
Difference between RAM and ROM
RAM(Random Access Memory)
ROM(Read only Memory)
1.
RAM is Random Access Memory.
1.
ROM is Read Only Memory
2.
RAM is the memory available for the operating system, programs and processes to use when the computer is running
2
.
ROM is the memory that comes with your computer that is pre-written to hold the instructions for booting-up the computer.
3.
RAM requires a flow of electricity to retain data (e.g. the computer powered on).
3
.
ROM will retain data without the flow of electricity (e.g. when computer is powered off).
4.
RAM is a type of volatile memory. Data in RAM is not permanently written. When you power off your computer the data stored in RAM is deleted.
4
.
ROM is a type of non- volatile memory. Data in ROM is permanently written and is not erased when you power off your computer.

Types of RAM and ROM

ROM

Programmable Read Only Memory (PROM)
Erasable Programmable Read Only Memory (EPROM)
Electronically Erasable Programmable Read Only Memory (EEPROM)

RAM
Synchronous Dynamic Random Access Memory (SDRAM)
Double Data Rate Synchronous Dynamic Random Access Memory (DDR-SDRAM)
Double Data Rate Revision 2 Synchronous Dynamic Random Access Memory (DDR2-SDRAM)
Double Data Rate Revision 3 Synchronous Dynamic Random Access Memory
Parts on the Motherboard

BIOS (Basic Input Output System) Chip
IDE connector
Floppy Drive Connector
PCI (Peripheral Component Interconnect) slot
Motherboard Battery
USB 2.0 header
Serial Chipset - South Bridge
ATA Connector
Motherboard controls
DIMM (Double Inline Memory Module) slots
CPU (Central Processing Unit) socket
ATX Power connector
Chipset - North Bridge (with heatsink)
PCI Express 1x Slot
PCI Express 16x slots
Firewire header

By: Harshavardhan Rajagopal

Class:9 Divison:N

You May Also Find These Documents Helpful

  • Satisfactory Essays

    SD1230 Lab 1

    • 239 Words
    • 2 Pages

    1. What happens to the volatile memory when the power is lost? –RAM is deleted…

    • 239 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    RAM is the random access memory and it is volatile. It holds program instructions and data. The CPU can find…

    • 204 Words
    • 1 Page
    Satisfactory Essays
  • Satisfactory Essays

    Nt1310 Unit 5 Essay

    • 437 Words
    • 2 Pages

    Nothing like the main memory (RAM), ROM remembers its data even when the computer is powered off.…

    • 437 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    the memory as it holds the absolute basic boot settings for the system. The typical size…

    • 281 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    It 240 Appendix F

    • 301 Words
    • 2 Pages

    |ROM |ROM is short for Read Only Memory and is memory that cannot be modified in any |…

    • 301 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    The CMOS memory is a 64 or 128 bytes of RAM that is part of the system clock chip or one of the chipset chips. The information stored in CMOS is required by your computer's Basic Input/Output System, or BIOS. The system BIOS is stored in a 64K by 8 bit wide ROM on the System Board. If the System BIOS was actually accessed from this ROM during normal operation the PC's speed would be greatly reduced. This is overcome by copying the contents of the BIOS ROM into some RAM where it is accessed 32 or 64 bits at a time, at far greater…

    • 317 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    BTEC ICT Unit 2 P1

    • 944 Words
    • 4 Pages

    RAM stands for random access memory; this is used to save applications, it stores programs and also the data being used by the computer. The higher the RAM storage the more application can be opened up without it affecting the speed of how the programs are run.…

    • 944 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Random-access-memory (RAM) is a very important specification of the computer. By ensuring you have enough RAM, the faster your system processes, you can store more data, and allow more programs to run at the same time. As the OS allows the different task to complete for the processor, the RAM is used as temp storage, when the processor no longer needs them the OS clears it. Virtual memory is the hard drive space borrowed to use if there isn’t enough…

    • 580 Words
    • 3 Pages
    Good Essays
  • Good Essays

    Revision Gcse Ict

    • 1310 Words
    • 6 Pages

    * Memory: RAM (random access memory), the higher the RAM the more programs you can access and open at once.…

    • 1310 Words
    • 6 Pages
    Good Essays
  • Powerful Essays

    Cache Memory-Cache Memory this is the memory in which your computer has. The bigger the memory the faster the computer will run. The cache memory is used to reduce the average time to access memory. The more memory you have the less your computer has…

    • 1306 Words
    • 4 Pages
    Powerful Essays
  • Good Essays

    Exam 1

    • 6600 Words
    • 27 Pages

    1. Which of the following will not retain data after the computer is turned off?…

    • 6600 Words
    • 27 Pages
    Good Essays
  • Good Essays

    Computer Memory Hacking

    • 820 Words
    • 2 Pages

    Another reason a person or person(s) would want to access a computer systems RAM without…

    • 820 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    Video summary 4

    • 336 Words
    • 2 Pages

    BIOS is Firmware and the very first program initiated during the boot process of a PC. BIOS is a set of instructions written as ROM which is "Read Only Memory"; this means that it is permanent and cannot be edited although it can be changed by flashing or by installing an entirely new motherboard; in my opining that should be referred to as replacing, as I feel that term is more accurate when a new motherboard is required to change the BIOS: Bios also does not need a power supply to maintain. BIOS initiates POST which is "Power-On Self Test": POST checks basic systems, hardware, memory and assigns system resources; BIOS also checks CMOS settings. When comparing to POST which is RAM and therefore not permanent; it can be changed by the user: With CMOS being RAM and BIOS being ROM allowing CMOS editable. Although CMOS is RAM it is able to sustain memory and survive computer shutdown while RAM is normally lost during power failure; this is because CMOS uses a coin battery to maintain its configuration, so be on the look out of a dying batter. To change the permanent instructions by replacing them, the BIOS uses a technology known as EEPROM "Electronically Erasable Programmable" ROM. Moving onto the topic of System Resources, there are four; the four resources are IRQ, I/O and Memory addresses, and DMA. IRQ "Interrupt Request" communication channel from Hardware devices to CPU; each device has its own address. Most common conflicts are; IRQ 3-com 2, com 4; IRQ 4-com 1, com 3; IRQ 5-LPT2 or sound card, and IRQ7-LPT1 (printer). I/O has addresses are similar to the device name. Memory Address is used to communicate with the CPU, and lastly DMA "Direct Memory Access", which is a direct communication channel between a device and the system menu. DMA does not require a CPU, which reduces response time; yet not all devices use DMA, but a couple of devices that use DMA are sound cards and joysticks.…

    • 336 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    Memory and Forgetting

    • 1402 Words
    • 6 Pages

    Next is the actual storage, which simply means holding onto the information. For this to take place, the computer must physically write the 1’ and 0’s onto the hard drive. It is very similar for us because it means that a physiological change must occur for the memory to be stored. The final process is called retrieval, which is bringing the memory out of storage and reversing the process of encoding. In other words, return the information to a form similar to what we stored.…

    • 1402 Words
    • 6 Pages
    Powerful Essays
  • Satisfactory Essays

    Primary Memory

    • 716 Words
    • 3 Pages

    There are two kinds of computer memory: primary and secondary. Primary memory is accessible directly by the processing unit. RAM is an example of primary memory. As soon as the computer is switched off the contents of the primary memory is lost. You can store and retrieve data much faster with primary memory compared to secondary memory. Primary memory is more expensive than secondary memory. Because of this the size of primary memory is less than that of secondary memory. Computer memory is used to store two things: i) instructions to execute a program and ii) data. When the computer is doing any job, the data that have to be processed are stored in the primary memory. This data may come from an input device like keyboard or from a secondary storage device like a floppy disk. The following terms related to memory of a computer 1. Random Access Memory (RAM): The primary storage is referred to as random access memory (RAM) because it is possible to randomly select and use any location of the memory directly store and retrieve data. It takes same time to any address of the memory as the first address. It is also called read/write memory. The storage of data and instructions inside the primary storage is temporary. It disappears from RAM as soon as the power to the computer is switched off. The memories, which loose their content on failure of power supply, are known as volatile memories .So now we can say that RAM is volatile memory. 2. Read Only Memory (ROM): There is another memory in computer, which is called Read Only Memory (ROM). The storage of program and data in the ROM is permanent. The ROM stores some standard processing programs supplied by the manufacturers to operate the personal computer. The ROM can only be read by the CPU but it cannot be changed. The basic input/output program is stored in the ROM that examines and initializes various equipment attached to the PC when the switch is made ON. The memories, which do not…

    • 716 Words
    • 3 Pages
    Satisfactory Essays