Compared with the floppy disk and hard disk of the microcomputer, the characteristics of the hard di

1. The capacity is different. The capacity of the hard disk is relatively large, which means that it can record more information, and it is generally installed in the chassis. Diskette.

The capacity is relatively small, and it is generally placed outside the chassis. Now the average hard disk capacity.

All of them have reached N GB, and the capacity of floppy disks is more, and the maximum capacity of optical discs is about 650MB.

The hard disk is responsible for storing data in the chassis, while the floppy disk is used to carry data, the capacity of the hard disk is large, the capacity of the floppy disk is small, this is the difference between them, and the access speed of the hard disk is much faster than that of the floppy disk.

2. The access speed is different. Access speed is how quickly we store data to and from disk, and the faster we are, the less time we have to wait. Hard disks can access information much faster than floppy disks, and memory access information is much faster than hard disks.

The speed of the hard disk is expressed in the number of revolutions per minute, and the unit is expressed as rpm, which is the abbreviation of revolutions per minute. The higher the rpm value, the faster the internal transfer rate, the shorter the access time, and the better the overall performance of the drive. The speed of ordinary hard disks at home is generally 5400rpm and 7200rpm.

Floppy disks have small capacity, high cost per capacity, slow speed, and poor reliability. In the past, there were rewritable removable media such as ZIP and LS-120 with larger capacities, but they were actually USB flash drives.

flash disk) has gradually replaced the time-honored floppy disk.

Answer: Regarding the comparison between microcomputer hard disk and floppy disk, the following statement is correct stupid return ( )aFloppy disks have a smaller capacity while hard disks have a larger capacity.

b.Floppy disks have faster read and write speeds, while which gear drives are slower.

c.Floppy disks are external memory, while hard disks are memory.

d.Floppy disks are internal memory, while hard disks are external memory. Answer: a

Regarding the comparison of microcomputer hard disk and floppy disk, the following statement is true that the floppy disk has a smaller capacity and the hard disk has a larger capacity.

Answer]: From the perspective of computer structure, memory is divided into two categories: internal memory and external memory. The internal memory is directly connected to the CPU and is responsible for the operation of various software.

External memory is a large amount of data storage used outside a computer, including floppy disks, hard disks, optical discs, etc. Hard disks and floppy disks are very similar, and they work in much the same way, except that the floppy disks are separated from the floppy disk drives, while the hard disks are housed together with the hard drives. In addition, when used, the data processing speed and capacity of the two vary greatly.

The hard disk is composed of several parts, such as a platter, a magnetic head, a platter shaft and a control motor, a magnetic head controller, a data converter, an interface and a state-blue cache. All the platters in the hard disk are mounted on a rotating axis, each platter is parallel to each other, there is a magnetic head on each platter storage surface, the distance between the magnetic head and the platter is smaller than the diameter of a human hair, all the magnetic heads are connected to a magnetic head controller, and the magnetic head controller is responsible for the movement of each magnetic head. The magnetic head can move along the radius of the platter, and the platter rotates at a high speed of several thousand revolutions per minute, so the magnetic head can be positioned at the designated position of the platter for data reading and writing operations.

Because the structure of the hard disk is relatively complex and the volume is relatively large, it is inconvenient to carry, when it has the characteristics of fast speed and large capacity.

Answer]: a, d

Hard disk memory is referred to as hard disk, which is usually fixed in the main chassis. The capacity of the hard disk is large, and the capacity of the hard disk of the microcomputer is generally in the tens of GB, and the read and write speed is fast. The hard disk has good dustproof performance and high reliability, and does not sell high environmental requirements.

However, when the hard disk is working in high concealment, be careful not to vibrate to avoid damage.

d That one of our teachers has approved!! It's all you, I'm wrong!!

Floppy disks, that is, inch disks, are now basically eliminated by U disks.

A hard disk is a CFFG disk in your computer.

Floppy disks: Generally there are inches on the market, and there were 5-inch hard disks a long time ago: IDE hard disks, SATA hard disks, SCSI hard disks, and Zip hard disks by interface type.

Disk: All floppy disks and hard disks that store data in magnetic tracks are collectively referred to as optical discs: all laser track-based read, readable and writable and read-only CDs, ***.

Floppy disks were the earliest removable media used in personal computers (PCs). The reading and writing of floppy disks is done through floppy disk drives. Floppy disk drives are designed to receive removable floppy disks, and the most commonly used ones are inch-sized floppy disks.

Floppy disks have slow access speed and small capacity, but they can be loaded and detached and easy to carry. As a removable storage method, it is ideal for small files that need to be physically moved. Floppy disks are eight inches, five and a quarter of an inch, and three and a half inches.

Hard disk (called hard disk in RTHK) is one of the main storage media of computers, which is composed of one or more aluminum or glass discs. These discs are covered with ferromagnetic material. The vast majority of hard drives are fixed hard drives that are permanently sealed and fixed in the hard drive.

Tape-like devices are also used in the external memory of computers, and the most commonly used one is called disk.

The round magnetic platter is packed in a square, sealed box to prevent scratches on the surface of the disk that could lead to data loss.

Compared with floppy disks, hard disks have the characteristics of large capacity, fast speed, inconvenient portability, and high performance.

At the same time, the hard disk has the following characteristics.

1. Mechanical hard disk is the most common and widely used computer storage device, which is composed of disk, magnetic head, magnetic head controller, disk motor, serial interface and other mechanical hardware.

The advantages are large storage space, mature technology, low technology, can be rewritten many times, long service life, and the deleted data ear can be recovered by misoperation; The disadvantages are slow read and write speed, high power consumption, high heat generation, noise, and poor shock resistance.

2. The solid-state disk is composed of an electronic memory chip control unit and a storage unit, and there is no mechanical movement in the process of reading and writing data.

The advantages are fast data read and write speed, strong shock resistance, low power consumption, no noise, and light weight; The disadvantage is that the storage capacity is small, high, and unrecoverable after data loss.

3. Hybrid hard disk is a new type of hard disk, which can not only read and write as quickly as a solid-state drive, but also store massive data like a mechanical hard disk.

The advantage is that it is both fast and cheap; The disadvantage is that the structure is complex and not practical.

Hard disks have a higher storage capacity than floppy disks, and they can read data faster.