A fast file system for unix presentation by parang saraf (cs5204 VT)Parang Saraf
This is the presentation of the paper "A fast file system for unix"
In case if you need a copy of these slides feel free to contact me at parang[DOT]saraf[AT]gmail
DriveInfo Class
Computers often have several drives. On Windows, these use letters such as C or D as names.
In the .NET Framework, the DriveInfo class provides helper methods for checking these drives. We can get all drives.
computer notes - Introduction to operating systemecomputernotes
The primary need for the OS arises from the fact that user needs to be provided with
services and OS ought to facilitate the provisioning of these services. The central part of a
computer system is a processing engine called CPU
A fast file system for unix presentation by parang saraf (cs5204 VT)Parang Saraf
This is the presentation of the paper "A fast file system for unix"
In case if you need a copy of these slides feel free to contact me at parang[DOT]saraf[AT]gmail
DriveInfo Class
Computers often have several drives. On Windows, these use letters such as C or D as names.
In the .NET Framework, the DriveInfo class provides helper methods for checking these drives. We can get all drives.
computer notes - Introduction to operating systemecomputernotes
The primary need for the OS arises from the fact that user needs to be provided with
services and OS ought to facilitate the provisioning of these services. The central part of a
computer system is a processing engine called CPU
The Dining Philosophers problem in BanglaSifat Hossain
The dining philosophers problem is an example problem often used in concurrent algorithm design to illustrate synchronization issues and techniques for resolving them.
Can be built on top of base methods
General involve creation of an index for the file
Keep index in memory for fast determination of location of data to be operated on (consider UPC code plus record of data about that item)
If too large, index (in memory) of the index (on disk)
IBM indexed sequential-access method (ISAM)
Small master index, points to disk blocks of secondary index
File kept sorted on a defined key
All done by the OS
VMS operating system provides index and relative files as another example .
A file system is used to control how data is stored and retrieved.
A filesystem is the methods and data structures that an operating system uses to keep track of files on a disk or partition; that is, the way the files are organized on the disk.
A file allocation table (FAT) is a table that an operating system maintains on a hard disk that provides a map of the clusters (the basic units of logical storage on a hard disk) that a file has been stored in.
File Allocation Table (FAT) is a computer file system architecture and a family of industry-standard file systems utilizing it. The FAT file system is a legacy file system which is simple and robust.
Today, FAT file systems are still commonly found on floppy disks, USB sticks, flash and other solid-state memory cards and modules, and many portable and embedded devices.
In a computer, a file system (sometimes written filesystem) is the way in which files are named and where they are placed logically for storage and retrieval.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
2. Secondary Storage Management
“Portion”: a group of contiguous blocks
File Allocation Table (FAT)
Keeps track of portions assigned to a file
Must also keep track of the space available for new
allocations
2
3. Secondary Storage Management
“Preallocation”
Requires maximum size for the file to be known at the
time of file creation
Facilitates allocation of entire file as one portion on the
same cylinder
Difficult to reliably estimate the maximum potential size
of the file
File size is usually overestimated so as to not run out of
space
“Dynamic allocation”
Allocates new portions to a file as needed
3
4. File allocation methods
Contiguous allocation
One portion is used
For each file, the FAT contains the starting block and
the number of blocks
Requires preallocation
Gives great performance for sequential access
For “random” access, it is easy to calculate the disk
location
External fragmentation will occur
Need to perform compaction
Note the memory analogy with dynamic partitioning
4
7. File allocation methods
Chained allocation
Allocation on basis of individual blocks
Each block contains a pointer to the next block in the
chain
FAT is same as for contiguous allocation
Starting block and number of blocks
No external fragmentation
Only sequential access is possible with poor
performance
No accommodation of the principle of locality
7
9. “Consolidation” makes
sequential access
more efficient
and accommodates
the principle of locality
9
10. File allocation methods
Indexed allocation
For each file, the FAT contains a separate one-level
index table
The index table has one entry for each portion allocated
to the file
Entry consists of the starting block and number of
blocks
The index table is usually on disk
10
11. File allocation methods
Indexed allocation
Allocation can be by . . .
single blocks
• 1-block portions
• no fragmentation
variable-sized portions
• better performance
Popular method for both sequential and indexed access
11
14. Free space management
A disk allocation table records which blocks are
available
Implementation techniques are as follows . . .
Bit table
One bit per block
Compact representation – can be kept in RAM
Easy to find contiguous blocks
14
15. Free space management
Chained free portions
File of chained portions
Only need the location and size of the first portion
Indexing
One entry for each free portion
Treats free space as a file of variable-sized portions
15
