'Average seek time' presentation slideshows

CS450/550 Operating Systems Lecture 1 Introductions to OS and Unix

CS450/550 Operating Systems Lecture 1 Introductions to OS and Unix. Palden Lama Department of Computer Science. 1.1 What is an operating system 1.2 History of operating systems 1.3 The operating system zoo 1.4 Computer hardware review 1.5 Operating system concepts 1.6 System calls

791 views • 63 slides

Disk Management

operating systems. Disk Management. operating systems. Goals of I/O Software. Provide a common, abstract view of all devices to the application programmer (open, read, write) Provide as much overlap as possible between the operation of I/O devices and the CPU. operating systems.

765 views • 54 slides

CH06 External Memory

CH06 External Memory. Magnetic Disk RAID Optical Memory Magnetic Tape. TECH Computer Science. CH05. Types of External Memory. Magnetic Disk RAID Removable Optical CD-ROM CD-Writable (WORM) CD-R/W DVD Magnetic Tape. Magnetic Disk.

635 views • 44 slides

CS 405G: Introduction to Database Systems

CS 405G: Introduction to Database Systems. 25 Exercise Chen Qian University of Kentucky. Project presentation. Demonstrate all functionalities of your application Complete some requests Introduce any additional features. The bonus part, if you have completed it. 4/24 Thursday.

637 views • 34 slides

Lecture 8. Storage and I/O

COMP212 Computer Architecture. Lecture 8. Storage and I/O. Prof. Taeweon Suh Computer Science Education Korea University. A Computer System. CPU. Main Memory (DDR2). FSB (Front-Side Bus). North Bridge. Graphics card. DMI (Direct Media I/F). I/O devices. South Bridge. Hard disk.

373 views • 25 slides

306 views • 23 slides

238 views • 23 slides

Disk Average Seek Time

Disk Average Seek Time. Multi-platter Disk. read/write head. read/write arm. Disk. platter. track. cylinder. sector. Multi-platter Disk. Seek Time. measures the amount of time required for the read/write heads to move between tracks over the surface of the platters. 0.0 ms. 0.8 ms.

514 views • 20 slides

Introduction to I/O

Introduction to I/O. Where does the data for our CPU and memory come from or go to? Computers communicate with the outside world via I/O devices. Input devices supply computers with data to operate on. Results of computations can be sent to output devices.

174 views • 17 slides

Components of the Virtual Memory System

virtual page number (VPN). page offset. virtual address. TLB. physical address. page offset. page table. block offset. index. tag. disk. cache. data. memory. Components of the Virtual Memory System. Arrows indicate what happens on a lw. PPN. I/O Performance.

177 views • 9 slides

Disk Based Storage

Disk Based Storage. Define the terms track, sector, and seek as pertaining to a nonvolatile storage medium. Calculate the average rotational for a disk given disk performance criteria. Calculate the disk read time for a hard drive given performance characteristics for the disk.

271 views • 9 slides