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Is hard disk random access memory or sequantial access memory?
Wiki User
∙ 10y ago
A hard disk is a Sequential Access Memory device or SAM
Wiki User
∙ 10y ago
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What company introduced using a hard disk for accounting projects in 1956?
The first commercial hard disk drive (HDD) was launched by IBM in September 1956. Designated the IBM 350 RAMAC (random access method of accounting and control), it had a capacity of about five megabytes, which was attained by using 50 platters, each 24 inches in diameter. The average data access time was very slow by today's standards, largely because there was only a single head to access to all the platters. IBM's 3340 Winchester disk system, introduced in 1973, was the first HDD to use a sealed head/disk assembly, which substantially improved performance and is now standard.IBM
Which type of memory is primarily used in cache memory?
Cache memory is composed of 2 types of memory:RAM (Random Access Memory) this is used to store the data copied from main RAM as a series of Cache LinesCAM (Content Addressable Memory) this is used to store the main RAM address for each Cache Line, so the data in Cache Memory can be found and associated with main RAM. The CAM also typically contains special flags (e.g. the "dirty" bit - indicating that the Cache Line has been modified and will have to be written back to main RAM).Cache memory also contains controller logic to coordinate the necessary actions.The first computer built to have what we now call Cache memory was the IBM Stretch 7030 introduced in 1961. However IBM at the time called this feature "Virtual memory". (Confusing isn't it?)
How is magnetism used in a computer?
Magnetism is used to operate the fan motors and the disk drive motors as well as operating the "voice coil" that causes the disk read/write heads to move. The surfaces of the hard disk "media" is magnetized to represent data. The hard disk read/write heads are nothing more than small electromagnets and as the heads move across the spinning disk media, magnetic data is sent or received by the disk heads. Older computers used a magnetic "core" to store data. That's the origin of the term, "core memory". With the decrease in cost ind incredible speed of transistor based memory, nobody uses magnetic core any more.
What are the features of computer?
Following are the features of PC (computer)Processorspeedreliabilityaccuracyautomationdiligenceconsistencyno.feelingsRandom access memory (RAM)Operating systemGraphics adapter and video RAMMonitor
What do the computer words Ram and Rom stand for?
"RANDOM ACCESS MEMORYData is loaded into RAM from long-term storage (ie- the hard-disk drive) for execution/processing by the CPU. Having too little RAM can lead to performance problems as data is paged back to the hard drive in order to make space for data that is being loaded into RAM.""ROM = Read Only Memory. Though a CD-R can be written to, generally, it's only once. Then the CD can only be read and being a form of memory, can be called ROM or CDROM when applied to a CD. All music CDs are basically ROM. Even an LP record could be considered a form of ROM as its content cannot be changed. But in general, ROM refers to electronic devices"
Hardware that stores information is?
RAM (Random Access Memory), ROM (Read Only Memory), Flash Memory, or Disk
What the full form of SDRAM?
full form of SD-RAM is static disk random access memory..............................
What was full name RAM?
Random Access Memory, as verses Sequential Access Memory (delay lines, magnetic tape, magnetic drum, magnetic disk, etc.)
What RAM stand for in computers?
RAM is Random Access Memory. They're designed to be fast and temporary, ideal for storing programs and data that the computer is currently working on. Once the power is off, the contents of RAM will be erased.
Difference between voltaile and non-voltaile memory?
Volatile Memory requires power to maintain the stored memory. Eg. Random Access Memory (RAM) Non-Volatile Memory does not require poer to maintain the stored memory. Eg. Hard Disk, Compact Disk, Flash memory.
Why do you need both Disk Storage and RAM?
Disk storage is used for storing data and RAM (Random Access Memory) is used for running applications and computer services
What is 2 type of memory?
For Human Memory:1)Short-term2)Long Term3) SensoryFor Computers(Internal Memory):1)Random Access Memory2)Hard Disk Drive
What is computer circuitry that temporarily holds data waiting to processed known as?
The Ram - Random Access Memory temporarily holds programs and data while the computer is on and allows the computer to access that information randomly.
What is the meaning of ram in a computer and how it works?
RAM stands for Random Access Memory. It is physical memory installed in a computer or storage device as silicon chips, hard disk, floppy disk, CD, etc., that is addressable by, and is directly accessible to, a computer (CPU) in a non-sequential (random) manner.
What is main memory in computer architecture?
main memory is RAM.The words Memory,Buffer,Cache are all refers Ram. Which is Nearly 11,000 times faster than secondary memory (Hard Disk) in Random Access.
Computer memory that is volatile?
If you want an example, all 'RAM' (Random Access Memory) is volatile - once power is removed the data is lost. Compare this to a CD or your hard disk drive.
What does RAM mean in talking about a computer?
RAM stands for Random Access Memory.The term Random Access refers to the fact that the computer can read or write to any specific addresses in any order required. It does not have to be gone through sequentially. This is the memory the computer works with when it is running a program ... as opposed to the storage memory of disk drives. While disk drives are also random access, they are not referred to as such. Disk drives are much slower, so the code the computer is working with is copied into RAM while it is using it, along with any data it might be working with.
