InstituteName: S.J.V.P.M,PolytechnicPresented By: Amey.V.Deshpande Under Guidence: Tingre S.S.Branch: CO6C

Wall Paintings.Written Format.Voice Recording.

In the forties, fifties, and sixties, everyone who took a computer course used punched cards.

In 1956, IBM developed RAMAC (Random Access Method of Accounting and Control).

After a Punch Card developer were developed electronic circuits, magnetic media like hard disks and tape, and optical media such as compact disks for storing a data.

Incredibly cheap way of delivering data to desktops.

With desktop CD-ROM recorders, individuals are able to publish their own CD-ROMs.

Protien-based memory to compete with the speed of electronic memory

Bacteriorhodopsin utilizing the two photon for read and write method it is a three Dimensional-Optical memory device.

Matrix can build with the help of Protein.

Photons are used to store the data.

Bacteriorhodopsin Store large data in small space than that of SIMM and DIMM.

Bacteriorhodopsin is Faster than SIMM and DIMM…….But it is theoretically only.

Use of Photons instead of Electrons.

Holography.

1970 a Protein found :- Dieter Oesterhelt , Rockefeller University

Rhodopsin a name after human eye.

Halobacterium halobium:-It is a Bacteria and Bacteriorhodopsin is a protein which found in this Bacteria.

Halobacterium halobium live in salt marshes.

This is the Halobacterium halobium molecule.

Disadvantages:- 1)Light Affects The Memory 2)The performance is

Theoretical.

Advantage:-1)Large data in small space. 2)Speedy System. 3)Use of photons. 4)Easy Data Erase.

A use of biological element may causes a costly system.

This System is under construction, so it is on trial and error method.

Thank You