The HARDWARE 1 course IT YBET

YBET

Hardware course on line

1. Introduction

2. Base of electronics

3. Processor assembly

4. Improvement of the processor based systems.

5. Processor PC - dedicated servers processors

6. Internal bus PC

7. Internal structure of processors - Athlon 64 and XP structure

8. Chipset

9. Memories (RAM)

10. IDE and SATA hard-disk

11. Floppy drive

12. Interruptions, addresses, parallels, series - 12.A Phone modem

13. Parameters color

14. Graphics card

15. Summary of the evolution of computer PC

16. Monitor (LCD - TFT - Plasma, LED and CRT)

17. Types of printers

18. Acquisition image

19. Sound card

20. Peripherals for backup

21. Power supply, motherboard's format.

22. Motherboard connection: processor installation, ventilator, memory...

23. Bios and setup, UEFI

24. Upgrade and repair

25. Notebook, netbook, tablet PC

11. Floppy disk drive

This chapter is obsolete, Floppy are not manufactured still 2008. As of the first PC, the floppy drive was installed. Indeed, the first XT did not comprise hard disks.

A floppy disk drive is made up:

• a rotation motor which enters in action only at the time of the access
• 1 or 2 read/write heads
• 1 element of translation of the heads
• the electronics for control.

One finds two formats of readers and 5 capacities (formatted) according to the format.

• 5"1/4300K (simple face, simple density)
• 1,2 MB (double face, double density)
• 3"1/2 720 K (double face)
• 1,44 MB (double face, high density) (called HD)
• 2,88 MB (disappeared special diskettes)

One can install two disk drives on only one controller (and only one controller). The readers are connected to the controller by a cable 34 wire. At the end of the cable, two wire are reversed. Reader called a: puts itself at the end, the reader B (second reader) in the central connector. This can nevertheless be reversed in the BIOS. Two types of connectors are generally established with each connections, for a reader 3"1/2 and for a reader 5"1/4. The use of the readers 5"1/4 disappeared since first 486.

Somme ZIP 100 MB of Iomega of the first generation use the controller of diskette. Moreover, the first tape readers (backup, safeguard) also used this controller. Currently, Zip are connected on the hard disk controller IDE (possibly SCSI). The bands use either a controller owner, or an interface SCSI, the latter being reserved for the safeguard network (on server) with the sights of the capacities of these bands (several tens of GB) for speed and as controller SCSI is already established at the beginning...

The floppy disks must also be announced in the setup PC (according to the type and the capacity). Attention that 486 and the lower uses a reader 5"1/4 in a: by default.

In relation:

• Hardware course: Hard drive Operating of Hard drive IDE and S-ata
• Hardware course: CD, DVD, Reader - Writer... Peripherals of current loading and safeguard
• Tape backup: Technologies for backup hard disk by tapes.

IT course 2: network, server and communication

Competences with the service of quality in data-processing