Pengantar Teknologi Informasi

1
Pengantar Teknologi Informasi
4. Secondary Storage

• Fakultas Ekonomi
• UNPAR

2
Pengertian

• Storage tempat penyimpanan
• Secondary Storage
• Storage Media

3
Tujuan

• Menyimpan data dan program
• Permanen, tidak tergantung pada catu daya
• Backup, cadangan, keamanan
• Distribusi, memindahkan

4
Jenis

• Media penyimpanan
• Magnetic
• Optical disk
• (Removable) Solid-state Storage Device

5
Magnetic

• Magnetic Tape
• Magnetic Disk

6
Magnetic Tape

• Sequential Access Storage Device (SASD)
• Biasa dipakai untuk backup

7
Magnetic Disk

• Floppy disk (diskette)
• Hard disk

8
Magnetic Disk diskette

• Bahan
• Bagian
• Track
• Sector

9
Floppy Disk (1)

• Ukuran

10
Floppy Disk (2)

• Formatting
• Soft-sector
• Hard-sector
• Kepadatan rekam
• Single Density
• Double Density
• Quad Density
• High Density
• Sisi rekam
• Single Side
• Double Side

11
Floppy Disk (3)

• Cluster beberapa sector sebagai satu blok data
• Seandainya 1 cluster 4 KB, maka
• File 3 KB memerlukan 1 cluster (4 KB)
• File 5 KB memerlukan 2 cluster (8 KB)
• Standard
• FAT16 (DOS, Win31, Win95) 32 KB
• FAT32 (Win98, XP) 4 KB

12
Floppy Disk (3a)

• Diketahui disket, free space 100 KB
• Seandainya 1 cluster 4 KB
• Disimpan file ukuran 5 KB
• Free space saat ini menjadi 92 KB

13
Floppy Disk (4)

• High-capacity floppy disk
• Zipdisk (Iomega)
• Superdisk (Imation)
• HiFD disk (Sony)

14
Hard Disk (1)
15
Hard Disk (2)

• Seperti floppy

16
Hard Disk (3)

• Seperti floppy, bahan logam

17
Hard Disk (4)

• Seperti floppy,
• Beberapa piringan, cylinder

18
Hard disk (5)

• Speed revolutions per minute (rpm)
• Capacity Giga Byte (GB)
• Transfer rate Mega bit per second (Mbps)
• Controller IDE, ATA, EIDE ...

19
Hard disk varian (5)

• Removable hard disk
• Redundant Array of Inexpensive Disks (RAID)
• Small Computer System Interface (SCSI)

20
Hard disk, removable

• bracket

• USB v1.1 data transfer 12Mbits/sec.
• Compatible with almost every 2,5" hdd.
• Hot swappable function. Included Win98/98se
  driver. Works without driver direct with Win
  ME/2000/XP, linux.

21
Hard Disk raid 5

• High capacity
• Mirroring
• Fault tolerant
• Stripping

22
Optical Disk
23
Optical Disk

• ROM Read Only Memory
• WORM Write Once, Read Many
• CD-Recordable (CDR)
• Menulis CD dengan cara membakar (burn) permukaan
  piringan
• WMRM Write Many Read Many
• ReWrite CD (CDRW)

24
Optical Disk

• CD (Compact Disk)
• CD-ROM
• CD-R
• CD-RW
• mini-CD

• DVD (Digital Video Disk, Digital Versatile Disk)
  
• DVD-ROM
• DVD-R
• DVD-RAM

25
CD

• Format CD-Audio, CD-ROM (ISO), VCD, SVCD, CD-I,
  ..
• Kapasitas
• Mini CD 200 MB
• CD 650 700 MB
• DVD 4.7 GB 17 GB
• Transfer rate
• CD drive 1x 150 KBps
• DVD drive 1x 1.32 MBps

26
Fluorescent Multilayer Disk

• Capacity 20 GB 140 GB
• Transfer rate 1 GBps

27
Solid State
28
Holographic