Regarding the information stored in the computer, how is the data stored in the computer?

The basic unit of data stored in a hard disk is a sector, which we can understand as a page of a book. When we install or buy a portable hard drive, the first step is to facilitate the management of partitions. No matter what kind of partition tool is used, the first sector of the hard disk will be marked with the number of partitions of the hard disk, the size of each partition, the starting position and other information, the term is called Master Boot Record (MBR), and some people call it the partition information table.

When we store a file on the hard disk, the system will first write the file name and size in the file allocation table, and continue to write the file content in the file allocation table at the beginning of the data area according to the free space in the data area. Then start to write the real content of the file to the data area, and the file storage operation is completed.

When we need to delete a file, the system just writes a delete flag in front of the file in the file allocation table, indicating that the file has been deleted and the space it occupies has been"Release", other files can use the space he occupies. So, when we delete a file and want to get it back (data recovery), we just need to use a tool to remove the deletion flag, and the data is restored. Provided, of course, that no new file is written and the space occupied by that file is not overwritten by new content.

This is what you call "deleted after deletion is not really deleted", but because there is a delete flag, the usual actions such as the link of the device, copy and paste after selecting all, etc., will not affect the deleted private information.

So you can rest assured

This software wants to store information on your computer.,This.,That's it.。 Adobe Flash Player is a network **device,Generally on the Internet**ahFlash,And so on have to rely on it**,**The principle is that FlashPlayer first**cache data and then**,This cache is in memory,Its size is what you see,If your memory is relatively large, set it more。 1M doesn't matter.,If the memory is small.,Or keep the default.。。。

I don't think so, you're not copying that privacy directly to your phone.

1. Binary

Binary is a number system widely used in computing technology, where two numbers can represent all numbers, binary numbers.

It is a number represented by two numbers, 0 and 1. Its cardinal number is 2, the carry rule is "every two into one", and the borrowing rule is "borrow one to become two", by the 18th century German mathematical philosophy master Leibniz.

Found. Current computer system.

The binary system is basically used, and the data is mainly stored in the form of complements in the computer. Binary in a computer is a very tiny switch, with "on" for 1 and "off" for 0.

2. Ternary

The ternary is a carry system with 3 as the base.

There are three digits in the ternary number, and every three is one. In the early days of computer development, a biased ternary system (symmetric ternary) was adopted, with -1 "generally used t to represent three numbers, this ternary is +-2 into one.

3. ** system

** System is a base 4 carry system, with four digits and 3 representing any real number. The system has many properties in common with all fixed-cardinality counting systems, such as the ability to represent any real number in a standard form, and the ability to represent rational and irrational numbers.

4. ** system

** The base number is a carry system with 4 as the base, and the four numbers of and 3 represent any real number. The system has many properties in common with all fixed base notation systems, such as the ability to represent any number in a standard form, and the ability to express the specificity of rational and irrational numbers.

5. Octadecimal system

Octal, abbreviated as OCT or O, is a counting method based on 8, using eight numbers 0, 1, 2, 3, 4, 5, 6, 7, every eight into 1. Some programming languages.

often starts with the number 0 to indicate that the number is octal. Octal numbers and binary numbers can be bitwise corresponded (octal one bit scatters and rises corresponds to binary three), so they are often used in computer languages. Middle.

Data structure. The way data is stored and organized for a computer. A data structure is a collection of data elements that have a specific relationship with each other, or a variety of specific relationships.

Often, a well-chosen data structure can lead to higher operational or storage efficiency. Data structures are often associated with efficient retrieval algorithms and indexing techniques.

Data storage objects include dataflows.

Temporary files generated during machining or information that needs to be found during machining. The data is recorded in some format on a computer's internal or external storage media. The data store should be named, and this naming should reflect the compositional meaning of the information hail companion.

The data flow reflects the data flowing in the system and exhibits the characteristics of dynamic data. Data storage reflects the data at rest in the system and exhibits the characteristics of static data.

In ancient times, information was recorded in the form of writing, printing, etc., on stone, bamboo, silk and paper, forming a book.

In modern times, it is recorded on paper in the form of writing, printing, etc. After the invention of photographic video technology, it was possible to record screen information.

Modern, mainly based on hard disk or cloud service storage for print and data.

The storage of information is an important aspect of the information system, if there is no information storage, it is not possible to make full use of the information that has been collected and processed, and at the same time, it will cost money, manpower and materials to organize the re-collection and processing of information. With information storage, it can be guaranteed to be available at any time, creating conditions for the multi-functional use of unit information, thus greatly reducing costs. The advantage is that the access speed is extremely fast and the amount of data stored is large.

Information storage should determine what information exists on which medium lines are appropriate. In general, voucher documents should be stored on paper media; storage of business documents on paper or tape; Master documents, such as archival materials on the structure and personnel of the enterprise, inventory accounts of equipment or materials, should be stored on disk for online retrieval and query.

All information in a computer is stored in binary.

Binary refers to a numerical system based on 2 in mathematical and numerical circuits, and the base number of 2 means that the system is binary. In this system, it is usually represented by two different symbols: 0 (for zero) and 1 (for one).

In digital electronic circuits, binary is used in the implementation of logic gates, which is why it is used in modern computers and computer-dependent devices. The binary counting system uses only two digits; In fact, there are many components with two apparent steady states, for example, the neon lamp is "on" and "off"; "On" and "Off" of switches.

The role of binary1. The circuit is easy to implement.

2. It is physically easiest to achieve storage.

3. It is convenient for addition and subtraction operations and counting coding.

4. It is convenient for logical judgment (yes or no).

5. The binary representation of data has the advantages of strong anti-interference ability and high reliability.

All the information in the computer is stored inside the computer in binary form.

The binary counting system uses only two digits; 0 and 1, so any component with two different steady states can be used to represent one of the digits of the number. In fact, there are many components that have two distinct steady states.

For example, the neon lamp is on and off; "On" and "Off" of switches. High and low, positive and negative voltage.

Holes and non-holes on paper tapes, signals and non-signals in circuits, south and north poles of magnetic materials, and so on. It's easy to use these disparate states to represent numbers. Not only that, but more importantly, the two completely different states are not only quantitatively different, but also qualitatively different.

In this way, the anti-interference ability of the machine can be greatly improved, and the reliability can be improved.

The role of binary form storage

Binary storage can help computers process all kinds of data efficiently. In the computer, all data is stored in the form of binary kernels, including numbers, text, images, sounds, and so on. This is because all operations in a computer are done by logic circuits, which can only handle the numbers 0 and 1.

As a result, converting data to binary storage allows computers to perform operations and processing faster. By converting data to binary storage, computers can store and read data more efficiently. In computers, data is stored in bytes, each byte consists of 8 binary bits that can represent 256 different characters or numbers.