![]() Control/Data cable For transferring data and control signals. Requires 2 voltages: +5v for logic circuits. Power cable To connect floppy drive to power supply unit. 3 different controller speeds are: 250 kbps:supports high density 5.25”,double density 3.5” disks 500kbps:supports all disks except 2.88MB 3.5” disks. Floppy controller speed is rate at which data is transferred between processor and floppy disk. It is integrated to mother board using super I/O chip. ![]() It is used for the communication between processor and floppy drive. It also controls the stepper-motor control circuits used to move the read/write heads to each track, as well as the movement of the read/write heads toward the diskette surface. An external button allows the diskette to be ejected, at which point the spring-loaded protective window on the diskette closes.Ĩ Circuit Board Contains all of the electronics to handle the data read from or written to the diskette. The read/write head assembly is fastened to the stepper motor shaft.ħ 4.Mechanical Frame A system of levers that opens the little protective window on the diskette to allow the read/write heads to touch the dual-sided diskette media. 2.Drive motor It spins at 300 rpm.Ħ 3.Stepper motor This motor makes a precise number of stepped revolutions to move the read/write head assembly to the proper track position. The major parts of a floppy drive are 1.Read/Write head Located on both sides of a diskette. 51/4” comes in two varieties-high density(360KB) & double density(1.2 MB) 31/2” comes in 3 varieties-double density(740KB),high density(1.44MB) & very high density(2.88MB)ĥ Floppy drive It is a device which reads or write data to and from floppy disks. Presentation on theme: "Floppy disks."- Presentation transcript:Ģ The floppy disk drive (FDD) was invented at IBM by Alan Shugart in 1967.įloppy disk is a round ,flat, thin sheet of flexible Mylar impregnated with magnetic particles on both sides and permanently shielded in a plastic case.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |