chapter 7,"Storage and Communication Hardware",Basic Information Technology
-
Upload
uzair-javed -
Category
Education
-
view
424 -
download
0
Transcript of chapter 7,"Storage and Communication Hardware",Basic Information Technology
![Page 1: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/1.jpg)
![Page 2: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/2.jpg)
SUBJECT : INFORMATION TECHNOLOGY
TEACHER : SIR ZEESHAN ABBAS
![Page 3: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/3.jpg)
Group Presentation:- Members:-
ANIS-UR-REHMAN SHAH (1421-315229) NOUMAN ZIAFAT (1421-315225) NOUMAN AKBAR (1421-315238) UMER MAQBOOL (1421-315226) TAMRAIZ SADIQUE ( 1421-315 ABDUL MANAN (1421-315
![Page 4: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/4.jpg)
CHAPTER : 07
"Storage and Communication Hardware"
![Page 5: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/5.jpg)
Presentation Contents:-
Hard & Floppy Disks Disk Storage Removable & Fixed
Disks Disk Controller Optical disk storage Recordable disk Ram Drives
Data Transmission Modes
Read Only Disks Mass storage Erasable Disks Tape Cartridges Flash Memory
![Page 6: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/6.jpg)
Data Transmission Modes
Transmission is a process of sending and propagating. There are three ways, modes for transmitting data from one point to another. These are simplex, Half-duplex and full-duplex.
![Page 7: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/7.jpg)
Transmission modes
• Simplex signal transmitted in one direction
e.g. Television. • half duplex both stations transmit, but only one at a time
e.g. police radio.• Full duplex
simultaneous transmission e.g. telephone.
![Page 8: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/8.jpg)
Hard and Floppy Disks
Hard disks: Hard disk provides users with fast access
to stores data. Storage capacities can exceed to 1 billion bytes (gigabyte). Hard dish comes in variety of sizes.
![Page 9: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/9.jpg)
Hard and Floppy Disks
Floppy Disks: Floppy disks, or diskettes, are round,
flat, flexible pieces of plastic used primarily for data storage and back up in personal computer system.
![Page 10: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/10.jpg)
Disk Storage
Disk Storage: Disk drives store data on disks in
concentric circles called disk tracks.
![Page 11: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/11.jpg)
Removable & Fixed Disks
Removable Disks: Disks packs can be inserted
into a disk drive for temporary use.
![Page 12: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/12.jpg)
Removable & Fixed Disks
Fixed Disks: Fixed disks are built inside the
computer case and sealed from the outside environment to protect the disk.
![Page 13: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/13.jpg)
Disk Controller
Disk Controller: A hard disk controller (HDC) is an
electrical component within a computer hard disk that enables the processor or CPU to access, read, write, delete and modify data to and from the hard disk.
![Page 14: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/14.jpg)
Optical disk storage
Optical disk storage:Optical storage techniques
used by computers are basically the same as those used to record music on compact disks. Optical disks differ from magnetic-disk storage. A laser beam is used to write and read data.
![Page 15: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/15.jpg)
Recordable disk
CD-R discs are blank CDs that can record data written by a CD burner. The word "recordable" is used because CD-Rs are often used to record audio, which can be played back by most CD players. However, many other kinds of data can also be written to a CD-R
![Page 16: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/16.jpg)
RAM Drives
![Page 17: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/17.jpg)
Flash Memory
![Page 18: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/18.jpg)
Tape Cartridges
![Page 19: chapter 7,"Storage and Communication Hardware",Basic Information Technology](https://reader031.fdocuments.in/reader031/viewer/2022022419/587f10021a28abc26f8b6c25/html5/thumbnails/19.jpg)
Erasable Disk