1 Introduction
... crashes, can have the same effect. The result is that the file system is left in an inconsistent state. This can cause a variety of problems, such as drives reporting negative amounts of free space, system crashes, or an actual loss of data. Various programs exist to correct these inconsistencies, a ...
... crashes, can have the same effect. The result is that the file system is left in an inconsistent state. This can cause a variety of problems, such as drives reporting negative amounts of free space, system crashes, or an actual loss of data. Various programs exist to correct these inconsistencies, a ...
Computer Hardware Basics
... Floppy Drives – a floppy drive reads and writes to a 1.44MB magnetic floppy disk. It stores small amounts of data. CD-ROM Drive – (Compact Disk Read Only Memory Drive) A drive that can read large amounts of data from a CD-ROM using a laser beam of light. DVD Drive – (Digital Versatile Disk Drive) A ...
... Floppy Drives – a floppy drive reads and writes to a 1.44MB magnetic floppy disk. It stores small amounts of data. CD-ROM Drive – (Compact Disk Read Only Memory Drive) A drive that can read large amounts of data from a CD-ROM using a laser beam of light. DVD Drive – (Digital Versatile Disk Drive) A ...
A reporting system on the WEB
... WebAF® has been easy to use, and is rather intuitive ■ Most job is on the server side ...
... WebAF® has been easy to use, and is rather intuitive ■ Most job is on the server side ...
Hardware - e-library WCL
... (Redirected from Computer hardware) Personal computer hardware are component devices which are typically installed into or peripheral to a computer case to create a personal computer upon which system software is installed including a firmware interface such as a BIOS and an operating system which s ...
... (Redirected from Computer hardware) Personal computer hardware are component devices which are typically installed into or peripheral to a computer case to create a personal computer upon which system software is installed including a firmware interface such as a BIOS and an operating system which s ...
Operating Systems
... The basic unit of computer storage is the bit. A bit can contain one of two values, 0 and 1. All other storage in a computer is based on collections of bits. Given enough bits, it is amazing how many things a computer can represent: numbers, letters, images, movies, sounds, documents, and programs, ...
... The basic unit of computer storage is the bit. A bit can contain one of two values, 0 and 1. All other storage in a computer is based on collections of bits. Given enough bits, it is amazing how many things a computer can represent: numbers, letters, images, movies, sounds, documents, and programs, ...
File Systems
... – If a disk block was written every time a process executed a write statement the number of writes would increase greatly. ...
... – If a disk block was written every time a process executed a write statement the number of writes would increase greatly. ...
disk scheduling - Orgfree.com
... After partitioning, the second step is called logical formatting, or “making a file system.” In this step, the operating system stores the initial file-system data structures onto the disk. The data structures may include maps of free and allocated space (a FAT or inodes) and an initial empty direct ...
... After partitioning, the second step is called logical formatting, or “making a file system.” In this step, the operating system stores the initial file-system data structures onto the disk. The data structures may include maps of free and allocated space (a FAT or inodes) and an initial empty direct ...
IT Hardware - University of Baltimore Home Page web services
... etc). Especially important for a highly mobile workforce such as airline pilots. Remote access to corporate applications, important since increasingly more of the employee’s interaction is self-managed (payroll systems, expense reports, etc.) More productive time spent at customer locations and stre ...
... etc). Especially important for a highly mobile workforce such as airline pilots. Remote access to corporate applications, important since increasingly more of the employee’s interaction is self-managed (payroll systems, expense reports, etc.) More productive time spent at customer locations and stre ...
Computer Questions For Banking Exams
... o What a character or a string or a picture, is called, cursor takes shape of a hand, when placed over? – a ...
... o What a character or a string or a picture, is called, cursor takes shape of a hand, when placed over? – a ...
LiveBackup - 3CiME Technology Srl
... Supports mobile disconnected users Self-Serve easy recovery File, Bare-Metal and Disaster Recovery How valuable is your data? ...
... Supports mobile disconnected users Self-Serve easy recovery File, Bare-Metal and Disaster Recovery How valuable is your data? ...
chapter4
... 2) Buffer manager – software module in DBMS managing the allocation of buffer space Which sectors stays in buffer Which sector is removed when main memory runs out of space 3) Rules for transferring records in and out of buffer -> based on access pattern in queries a) Hot set: a set of pages which i ...
... 2) Buffer manager – software module in DBMS managing the allocation of buffer space Which sectors stays in buffer Which sector is removed when main memory runs out of space 3) Rules for transferring records in and out of buffer -> based on access pattern in queries a) Hot set: a set of pages which i ...
Electronic Media Disposal - University of South Florida
... for unwanted effects the use of this software may cause. Do not use the methods described below unless you are certain the data will no longer be needed. ...
... for unwanted effects the use of this software may cause. Do not use the methods described below unless you are certain the data will no longer be needed. ...
Data Challenges for 12 GeV
... tasks, file I/O operations – auto-retry on failed jobs – way to query (or see online) how much progress the workflow has achieved – add / remove tasks from workflow as it is running Write through disk cache – never fills, overflows to tape – can be used by Globus Online WAN file transfers to write t ...
... tasks, file I/O operations – auto-retry on failed jobs – way to query (or see online) how much progress the workflow has achieved – add / remove tasks from workflow as it is running Write through disk cache – never fills, overflows to tape – can be used by Globus Online WAN file transfers to write t ...
Computer Forensics Glossary - Information Security and Forensics
... Residual data. Residual data includes deleted files that have not been overwritten and/or file slack space that has not been wiped clean by specialized software. Also called "recoverable files." When a file is deleted, the data in that file is not erased. Rather, the computer marks the file space as ...
... Residual data. Residual data includes deleted files that have not been overwritten and/or file slack space that has not been wiped clean by specialized software. Also called "recoverable files." When a file is deleted, the data in that file is not erased. Rather, the computer marks the file space as ...
Multimedia Systems: ADCS 3
... drives, but are eventually migrated to tape if they are not used for a certain period of time, typically a few months. • If a user does reuse a file which is on tape, it is automatically moved back to disk storage. ...
... drives, but are eventually migrated to tape if they are not used for a certain period of time, typically a few months. • If a user does reuse a file which is on tape, it is automatically moved back to disk storage. ...
Chapter 3 Slides - Arkansas State University
... • Combines from 6 to more than 100 small hard disk drives into a single unit • Data are accessed in parallel over multiple paths from many disks • Redundant storage of data on several disks provides fault-tolerant capacity • Storage area networks can interconnect many RAID units ...
... • Combines from 6 to more than 100 small hard disk drives into a single unit • Data are accessed in parallel over multiple paths from many disks • Redundant storage of data on several disks provides fault-tolerant capacity • Storage area networks can interconnect many RAID units ...
Lesson 3 Quiz and Key
... True/False 1. Access is considered a relational database because the data actually connects to data in other tables. 2. The default font type in a table may not be changed. 3. Table gridline colors may be changed in the text formatting dialog box. 4. Data must be imported into Access prior to buildi ...
... True/False 1. Access is considered a relational database because the data actually connects to data in other tables. 2. The default font type in a table may not be changed. 3. Table gridline colors may be changed in the text formatting dialog box. 4. Data must be imported into Access prior to buildi ...
The Need for Backing Storage - it
... Backing storage allows data to be saved permanently. RAM is often not large enough to store large data files. Backing storage allows large quantities of data to be stored. It is most important that backups are made of important data in case it becomes lost or damaged. Backups will be saved on a back ...
... Backing storage allows data to be saved permanently. RAM is often not large enough to store large data files. Backing storage allows large quantities of data to be stored. It is most important that backups are made of important data in case it becomes lost or damaged. Backups will be saved on a back ...
application i/o interface
... Block-device: The block-device interface captures all the aspects necessary for accessing disk drives and other block-oriented devices. The device should understand the commands such as read () & write (), and if it is a random access device, it has a seek() command to specify which block to transfe ...
... Block-device: The block-device interface captures all the aspects necessary for accessing disk drives and other block-oriented devices. The device should understand the commands such as read () & write (), and if it is a random access device, it has a seek() command to specify which block to transfe ...
slides
... Queries have well-defined access patterns (such as sequential scans), and a database system can use the information in a user’s query to predict future references ...
... Queries have well-defined access patterns (such as sequential scans), and a database system can use the information in a user’s query to predict future references ...
Data Foresensics
... Use LiveCD to copy all files to another disk Can be avoided by proper disk partitioning Disk-level failure Compromised file system or disk partition Repair file system, partition table, master boot record Hard disk recovery – one time recovery Recovering deleted files Often data is n ...
... Use LiveCD to copy all files to another disk Can be avoided by proper disk partitioning Disk-level failure Compromised file system or disk partition Repair file system, partition table, master boot record Hard disk recovery – one time recovery Recovering deleted files Often data is n ...
12. Recovery LECTURE - NDSU Computer Science
... In other words, holographic memories can be searched extremely quickly for data patterns (associative memory). This would allow database searches using physics rather than software. Note that holographic storage may make the current access path technologies (indexes) obsolete. Why would anyone use i ...
... In other words, holographic memories can be searched extremely quickly for data patterns (associative memory). This would allow database searches using physics rather than software. Note that holographic storage may make the current access path technologies (indexes) obsolete. Why would anyone use i ...
Database (PowerPoint)
... Databases are BIG! E.g. a new Government database is called COINs: it's 120Gb Recently I've read the following about databases: “many of today's databases routinely grow into the 100-800 gigabyte (GB) range.” “databases of 400 GB or more are not uncommon” “Wal-Mart:- in 2004: at more than 500 ...
... Databases are BIG! E.g. a new Government database is called COINs: it's 120Gb Recently I've read the following about databases: “many of today's databases routinely grow into the 100-800 gigabyte (GB) range.” “databases of 400 GB or more are not uncommon” “Wal-Mart:- in 2004: at more than 500 ...
Windows Vista Performance Technologies
... Write-through cache allows user to remove device at any time No unique contents in the cache – always HDD-backed ...
... Write-through cache allows user to remove device at any time No unique contents in the cache – always HDD-backed ...