Secondary Storage

Descrição

Computing
izzykersley01
Mapa Mental por izzykersley01, atualizado more than 1 year ago
izzykersley01
Criado por izzykersley01 mais de 10 anos atrás
40
0

Resumo de Recurso

Secondary Storage
  1. Stores data and programs when the power is switched off
    1. Magnetic Hard Disk
      1. Stores the operating system, installed programs and user data
        1. Reliable
          1. High capacity
            1. Low Cost
            2. Optical Disk
              1. Transfers files or distributing software
                1. Good capacity
                  1. Low cost
                    1. Lightweight and portable
                      1. A CD can store 700 MB and DVD can store 4.7 GB
                      2. Flash Memory
                        1. Consumes little power
                          1. Good capacity (but less than a hard disk)
                            1. Used in hand held devices
                              1. More expensive than a hard disk
                              2. Main considerations when selecting storage
                                1. Capacity
                                  1. Speed of data transfer
                                    1. Portability
                                      1. Durability (how easily it's damaged)
                                        1. Reliability

                                        Semelhante

                                        STEM AND LEAF DIAGRAMS
                                        Elliot O'Leary
                                        GCSE Biology - Homeostasis and Classification Flashcards
                                        Beth Coiley
                                        Acids, Bases and Salts
                                        asramanathan
                                        FREQUENCY TABLES: MODE, MEDIAN AND MEAN
                                        Elliot O'Leary
                                        CUMULATIVE FREQUENCY DIAGRAMS
                                        Elliot O'Leary
                                        GCSE Biology AQA
                                        isabellabeaumont
                                        GCSE Biology B2 (OCR)
                                        Usman Rauf
                                        Maths GCSE - What to revise!
                                        livvy_hurrell
                                        Germany 1918-39
                                        Cam Burke
                                        GCSE Geography - Causes of Climate Change
                                        Beth Coiley
                                        French -> small but important words for GCSE
                                        georgie_hill