Secondary memory is where programs and data are kept on a long-term basis. Common secondary storage devices are the hard disk and optical disks. The hard disk has enormous storage capacity compared to main memory. The hard disk is usually contained inside the case of a computer.
You can present like this :
Good to all
I am --
going to present a presentation on Computer c.p.u
We all know that cpu consist of three elements
C.U,ALU,MU ___ Explain little all because are main focus on secondary memory
FOUND ANY ERROR PLEASE COMMENT
Thank you
RAM(Random Access memory) is a volatile memory.RAM is our working memory storage. All the data, which the PC uses and works with during operation, are stored here. Data are stored on drives, typically the hard drive. However, for the CPU to work with those data, they must be read into the working memory storage, which is made up of RAM chips.
Historical review:
Back in the 80's, PC's were equipped with RAM in quantities of 64 KB, 256 KB, 512 KB and finally 1 MB. Around 1990, advanced operating systems, like Windows, appeared on the market, that started the RAM race. The PC needed more and more RAM. That worked fine with the 386 processor, which could address larger amount of RAM. The first Windows operated PC's could address 2 MB RAM, but 4 MB soon became the standard. The race has continued through the 90's, as RAM prices have dropped dramatically. Today it would be foolish to consider less than 64 MB RAM in a PC. The OS like windows Xp requires better than this.
CPU-Central Processing Unit (With History and Complete Detail)Adeel Rasheed
CPU is the heart and brain of a computer. It receives data as input.The Central Processing Unit (CPU) is simply the central processor or the processor where most calculation takes places.
Secondary memory is where programs and data are kept on a long-term basis. Common secondary storage devices are the hard disk and optical disks. The hard disk has enormous storage capacity compared to main memory. The hard disk is usually contained inside the case of a computer.
You can present like this :
Good to all
I am --
going to present a presentation on Computer c.p.u
We all know that cpu consist of three elements
C.U,ALU,MU ___ Explain little all because are main focus on secondary memory
FOUND ANY ERROR PLEASE COMMENT
Thank you
RAM(Random Access memory) is a volatile memory.RAM is our working memory storage. All the data, which the PC uses and works with during operation, are stored here. Data are stored on drives, typically the hard drive. However, for the CPU to work with those data, they must be read into the working memory storage, which is made up of RAM chips.
Historical review:
Back in the 80's, PC's were equipped with RAM in quantities of 64 KB, 256 KB, 512 KB and finally 1 MB. Around 1990, advanced operating systems, like Windows, appeared on the market, that started the RAM race. The PC needed more and more RAM. That worked fine with the 386 processor, which could address larger amount of RAM. The first Windows operated PC's could address 2 MB RAM, but 4 MB soon became the standard. The race has continued through the 90's, as RAM prices have dropped dramatically. Today it would be foolish to consider less than 64 MB RAM in a PC. The OS like windows Xp requires better than this.
CPU-Central Processing Unit (With History and Complete Detail)Adeel Rasheed
CPU is the heart and brain of a computer. It receives data as input.The Central Processing Unit (CPU) is simply the central processor or the processor where most calculation takes places.
Primary memory (main memory)
complete knowledge about main memory Ram Rom and its kinds
with history and pictures
try it to believe it
Main memory refers to physical memory that is internal to the computer
A full ppt about computer memory.It will contain all data about computer memory like types of memory,ram and rom, types of ram and rom and cache memory.
Primary memory (main memory)
complete knowledge about main memory Ram Rom and its kinds
with history and pictures
try it to believe it
Main memory refers to physical memory that is internal to the computer
A full ppt about computer memory.It will contain all data about computer memory like types of memory,ram and rom, types of ram and rom and cache memory.
Study on Cyber Security:Establishing a Sustainable Cyber Security Framework f...Rihab Rahman
The research proposal is about my current research project titled "Study on Cyber Security: Establishing a Sustainable Information Security Framework for University Automation System"
Presentation on House Rent Management SystemRihab Rahman
The broad objective of this project is to develop software to maintain the track records of
renter info, owner info monthly rent info, receipts, rent advances made, maintenances and
other related issues.
Presentation on Transmission Media & SwitchingRihab Rahman
This presentation contains information about
Transmission media
Types of transmission media
Guided transmission media
Unguided transmission media
What is switching
Methods of switching
Structure of Switch
Presentation on Automated Prescription Management SystemRihab Rahman
The aim of the project is to develop an automated prescription system for the patients.
Because for every time visiting to doctor the patient has to bring all his medical records and those may lose easily. It becomes very troublesome for some cases. So, for solving this problem we have planned to develop the system so that the patient can get the prescription anytime and do not need to carry previous prescriptions. Doctors can also see the full medical history of any patient within a very short time. It will also help him to give a proper diagnosis to the patient. Along with prescription, this software will also maintain and track down the records of stuffs, doctors, patients, appointments, and other related issues.
Display Characters of a String one by One on a 7 Segment DisplayRihab Rahman
The presentation is about the introduction of Arduino UNO and a 7 segment display with their description and usage. It also contains the pin configuration of Arduino along with its programming structure to display character of a string one by one.
Display a Character on a 7 Segment DisplayRihab Rahman
The presentation is about the introduction of Arduino UNO, its description and usage. It also contains the pin configuration of Arduino along with its programming structure to implement a single blinking LED light.
Blinking LED's Animation Connected to a PortRihab Rahman
The presentation is about the implementation of LED's animation using Arduino UNO. It also contains the program to burn in the Arduino for implementation.
The presentation is about the introduction of Arduino UNO, its description and usage. It also contains the pin configuration of Arduino along with its programming structure to implement a single blinking LED light.
Bernard Matthews Communicating with StakeholdersRihab Rahman
Its a presentation on the importance of business communication with the stakeholder of Barnard Matthews brand. It contains the ways of communication, barriers and some solution to improve the business communication skill.
Building a Raspberry Pi Robot with Dot NET 8, Blazor and SignalR - Slides Onl...Peter Gallagher
In this session delivered at Leeds IoT, I talk about how you can control a 3D printed Robot Arm with a Raspberry Pi, .NET 8, Blazor and SignalR.
I also show how you can use a Unity app on an Meta Quest 3 to control the arm VR too.
You can find the GitHub repo and workshop instructions here;
https://bit.ly/dotnetrobotgithub
MATHEMATICS BRIDGE COURSE (TEN DAYS PLANNER) (FOR CLASS XI STUDENTS GOING TO ...PinkySharma900491
Class khatm kaam kaam karne kk kabhi uske kk innings evening karni nnod ennu Tak add djdhejs a Nissan s isme sniff kaam GCC bagg GB g ghan HD smart karmathtaa Niven ken many bhej kaam karne Nissan kaam kaam Karo kaam lal mam cell pal xoxo
2. 2Prepared For
Shahinur Alam
Assistant Lecturer
Department of Computer Science and Engineering
SN Name ID No
01 Rihab Rahman CONFIDENTIAL
02 Tasnia Tahsin CONFIDENTIAL
03 Kaisary Zaman CONFIDENTIAL
04 Jakia Sultana CONFIDENTIAL
05 Maseat Nahar CONFIDENTIAL
06 Md. Fahad CONFIDENTIAL
Prepared By
Group – The Glorious
27-Jul-192
3. • Introduction
• Classification of secondary memory
• Magnetic Tape
• Magnetic Disk - Hard Disk Drive, Floppy Disk, Zip Disk
• Optical Disk – CDR, CDRW, DVDR, DVDRW, Blue Ray
• Memory Storage Device - Pen drive, Memory Card
• Conclusion
• Q&A
Objectives
27-Jul-19 3Rihab Rahman
4. Introduction
• Memory : Computer memory is any physical device capable of
storing information temporarily or permanently. There are
two types of memory. Such as – Primary Memory and
Secondary Memory.
• Secondary memory is computer memory that is non-volatile
and persistent in nature and is not directly accessed by a
computer/processor. It allows a user to store data that may
be instantly and easily retrieved, transported and used by
applications and services.
• Secondary memory is also known as secondary storage.
27-Jul-19 4Rihab Rahman
5. Classification of Secondary Memory
Secondary
Memory
Sequential Access
Device
Magnetic
Tape
Direct
Access Device
Magnetic
Disk
Hard Disk
Floppy
Disk
Zip Disk
Optical
Disk
CD-R CD-RW
DVD-R DVD-RW
Memory Storage
Device
Pen Drive
Memory
Card
27-Jul-19 5Rihab Rahman
6. Magnetic Tape
❖Oldest storage device
❖Used for large computer
❖Used in Mainframe Computers
❖Made of plastic coated with
magnetic material
❖Used to read and write data
❖Cost of storing data is expensive
❖Used in reels Fig: MagneticTape
27-Jul-19 6Maseat Nahar
7. Magnetic Disk
A magnetic disk is a storage device that uses a
magnetization process to write, rewrite and access data. It
is covered with a magnetic coating and stores data in the
form of tracks, spots and sectors.
There are three main types of magnetic disk:
❖Hard Disk
❖Floppy Disk
❖Zip Disk
27-Jul-19 7Maseat Nahar
8. Hard Disk
❖Usually used as a secondary storage
❖Also called fixed disk
❖Consists of one or more metal Plates
❖Used for long term storage data
Fig: Hard Disk
27-Jul-19 8Maseat Nahar
9. Floppy Disk
❖A small plastic plate coated with
magnetic material.
❖Stored data in magnetic spots.
❖Used to transfer data from
one computer to another
❖Presently used in airlines.
Fig: Floppy Disk
27-Jul-19 9Jakia Sultana
10. Zip Disk
❖ Similar to 3 ½ inch FLOPPY disk.
❖ Can store 100 MB or more data.
❖ Used to read and write data.
Fig: Zip Disk
27-Jul-19 10Jakia Sultana
11. CD-R: CD Recordable or WORM
❖Compact disc recordable.
❖An optical secondary storage device.
❖Invented by SONY and PHILIPS.
❖Also known as a WORM
Write Once Read Many
❖Can store data on it only once.
Fig: CD-R
27-Jul-19 11Jakia Sultana
12. CD-RW: Rewriteable Compact Disk
❖A CD-RW disc is coated with a metal alloy
❖ Can be written to many times.
❖CD-RW drive has a laser that
❖ has three different power settings
❖CD-RW discs usually hold
❖ 74 minutes (650 MB) of data,
❖ although some can hold up to
❖ 80 minutes (700 MB) of data.
Fig: CD-RW
27-Jul-19 12Kaisary Zaman
13. DVD-R: Recordable DigitalVersatile Disk
❖Can store approximately 7 times more data than a CD-ROM
❖Stores around 4.38 GB of data
❖DVD uses light of 650 nm wavelength
❖Access rate is 600 KBps to 1.3 MBps.
27-Jul-19 13
Fig: DVD-R
Kaisary Zaman
14. DVD-RW: Rewriteable DVD
❖Introduced by coalition of corporations
❖Can write data many times by
erasing the old data.
❖Discs need to be blanked before reuse
27-Jul-19 14
Fig: DVD-RW
Md. Fahad
15. Blue Ray
❖ Digital Optical disc data storage format
❖Developed by Blu-ray Disc Association
❖storing hours of video in high definition
❖Used to read and write
❖ single-layer disc and dual-layer disc
27-Jul-19 15
Fig: Blue Ray
Md. Fahad
16. Pen Drive
❖A small piece of equipment that we connect to a computer or
other piece of electronic equipment to copy and store
information.
27-Jul-19 16
Fig: Pen Drive
Tasnia Tahsin
17. Memory Cards
❖A memory card, flash card or
memory cartridge is an electronic
flash memory data storage device
used for storing digital
information.
❖It uses nonvolatile
semiconductor memory to store
data on portable or remote
computing devices. Such data
includes text, pictures, audio and
video.
27-Jul-19 17
Fig: Memory Card
Tasnia Tahsin
18. Conclusion
The primary memory is costly, not a permanent storage
media and has limited capacity. The secondary memory is
the storage other than main memory and used to store
large data, files, system program and the like which are
not continuously required by the CPU.
27-Jul-19 18Tasnia Tahsin