what is ram in the context of computer? why is it needed?what is sram and its role in a computer? a computer has primary memory still it requires hard disk?why explain the storage organisation of hard disk and access time for it?
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RAM is the random access memory that stores temporary data of the computer.
It is needed to remember the data and necessary functionality required in the performance of some task
SRAM is the static random access memory that uses bi-stable latching circuitry to store each bit.
Because RAM size is very small and it can only store data for a short period of time, say till the computer is not shut down. After that all the data on RAM will be erased, so it requires some permanent hard disk
Hard disk form sectors and tracks to store data. It keeps tracks of the data and keeps the corrupt areas in notice. It can give the access time of 9-15 millisecond.
It is needed to remember the data and necessary functionality required in the performance of some task
SRAM is the static random access memory that uses bi-stable latching circuitry to store each bit.
Because RAM size is very small and it can only store data for a short period of time, say till the computer is not shut down. After that all the data on RAM will be erased, so it requires some permanent hard disk
Hard disk form sectors and tracks to store data. It keeps tracks of the data and keeps the corrupt areas in notice. It can give the access time of 9-15 millisecond.
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Hi Friend,
RAM (pronounced ramm) is an acronym for random access memory, a type of computer memory that can be accessed randomly; that is, any byte of memory can be accessed without touching the preceding bytes. RAM is the most common type of memory found in computers and other devices, such as printer.
SRAM (static RAM) is random access memory (RAM) that retains data bits in its memory as long as power is being supplied. Unlike dynamic RAM (DRAM), which stores bits in cells consisting of a capacitor and a transistor, SRAM does not have to be periodically refreshed.
Primary memory is computer memory that a processor or computer accesses first or directly. It allows a processor to access running execution applications and services that are temporarily stored in a specific memory location. Primary memory is also known as primary storage or main memory.
whereas , A hard disk is part of a unit, often called a "disk drive," "hard drive," or "hard disk drive," that stores and provides relatively quick access to large amounts of data on an electromagnetically charged surface or set of surfaces
.
Access time is the time from the start of one storage device access to the time when the next access can be started. Access time consists of latency (the overhead of getting to the right place on the device and preparing to access it) and transfer time.
wish it helps ^_^
.
RAM (pronounced ramm) is an acronym for random access memory, a type of computer memory that can be accessed randomly; that is, any byte of memory can be accessed without touching the preceding bytes. RAM is the most common type of memory found in computers and other devices, such as printer.
SRAM (static RAM) is random access memory (RAM) that retains data bits in its memory as long as power is being supplied. Unlike dynamic RAM (DRAM), which stores bits in cells consisting of a capacitor and a transistor, SRAM does not have to be periodically refreshed.
Primary memory is computer memory that a processor or computer accesses first or directly. It allows a processor to access running execution applications and services that are temporarily stored in a specific memory location. Primary memory is also known as primary storage or main memory.
whereas , A hard disk is part of a unit, often called a "disk drive," "hard drive," or "hard disk drive," that stores and provides relatively quick access to large amounts of data on an electromagnetically charged surface or set of surfaces
.
Access time is the time from the start of one storage device access to the time when the next access can be started. Access time consists of latency (the overhead of getting to the right place on the device and preparing to access it) and transfer time.
wish it helps ^_^
.
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