Quick Answer: What Is Meant By Serial Access?

What is the meaning of direct tax?

Definition: Direct tax is a type of tax where the incidence and impact of taxation fall on the same entity.

These are largely taxes on income or wealth.

Income tax, corporation tax, property tax, inheritance tax and gift tax are examples of direct tax..

What are five common storage devices?

Five common storage devices are:USB flash drives.Hard disks.Optical disk.RAM (volatile memory)Floppy disk.

What is direct access and serial access?

Direct Access is required if transaction processing is taking place. Serial Access. When a serial access medium is being used, the head that reads data from the storage medium has limited freedom of movement. The only serial access medium is magnetic tape.

What is the difference between sequential access and random access?

Sequential Access to a data file means that the computer system reads or writes information to the file sequentially, starting from the beginning of the file and proceeding step by step. On the other hand, Random Access to a file means that the computer system can read or write information anywhere in the data file.

Can CD Roms record data over and over again?

CD-ROMS can record data over and over again – You selected which is INCORRECT. … DVD-R discs can store more than CD-R discs – You selected which is INCORRECT.

What are the 3 types of storage?

There are three main categories of storage devices: optical, magnetic and semiconductor. The earliest of these was the magnetic device. Computer systems began with magnetic storage in the form of tapes (yes, just like a cassette or video tape). These graduated to the hard disk drive and then to a floppy disk.

How is data stored and read?

When your computer stores data on its hard drive, it doesn’t just throw magnetized nails into a box, all jumbled up together. The data is stored in a very orderly pattern on each platter. Bits of data are arranged in concentric, circular paths called tracks. Each track is broken up into smaller areas called sectors.

What is an example of serial access?

Examples of storage medium that use serial access are: Video cassettes. Music cassettes. Backup tape cartridges(hold lots of tape for backing up large amounts of data).

What is serial access memory explain?

In computing, sequential access memory (SAM) is a class of data storage devices that read stored data in a sequence. This is in contrast to random access memory (RAM) where data can be accessed in any order. Sequential access devices are usually a form of magnetic storage or optical storage.

Which of the following is serial access memory?

Discussion ForumQue.Which of the following is serial access memory?b.Flash memoryc.Shiftersd.ROMAnswer:Shifters1 more row

What is another name for direct data access?

Sometimes referred to as machine access or random access, direct access is a term used to describe a computer’s ability to immediately locate and retrieve data from a storage device.

Is an example of sequential access device?

A common example of sequential access is with a tape drive, where the device must move the tape’s ribbon forward or backward to reach the desired information. The opposite would be RAM (Random Access Memory) going anywhere on the chip to access the information.

Is magnetic tape serial access?

Magnetic tape uses ‘serial access’ to find a piece of data. This means that to find a specific piece of data, the tape reader has to start at the beginning of the tape and continue fast forwarding until it gets to the piece of data that needed.

What is serial access in ICT?

Serial access is where data records are stored one after the other with no regard to the order. This is usually an unprocessed file. Serial files are read by starting at the beginning and reading through every record until you find the one that you want. … Magnetic Tape and disks can be used to store serial files.

Why do major devices use direct access?

Direct-access storage devices allow the host computer to access data directly from wherever it is stored within the storage device because each data chunk is saved in a discrete and separate location from other chunks, complete with a unique address.

How is data recorded on a CD ROM?

Data is stored on the disc as a series of microscopic indentations. A laser is shone onto the reflective surface of the disc to read the pattern of pits and lands (“pits”, with the gaps between them referred to as “lands”). … This is converted into binary data.

What is the meaning of direct access?

In computer storage, direct access is the ability to obtain data from a storage device by going directly to where it is physically located on the device rather than by having to sequentially look for the data at one physical location after another.

What is Direct Access Method provide an example?

Direct Access – The direct access is based on the disk model of a file since disk allows random access to any file block. For direct access, the file is viewed as a numbered sequence of block or record. Thus, we may read block 14 then block 59 and then we can write block 17.