PTI

Computer Hardware

Posted: September 17th 2012
Computer Hardware terdiri dari :
  1. CPU (central processing unit)
  2. Memory (primary and secondary storage)
  3. Input devices
  4. Output devices

 

1. CPU terdiri dari :
A. Components

  • Processor
  • Memory
  • Adapter cards(Sound card, Modem card, Video card, Network card)
  • Ports
  • Drive bays
  • Power supply
B. Motherboard
  • Main circuit board in system unit
  • Contains adapter cards, processor chips, and
    memory chips
  • Also called system boar

2. Memory :

A. Primary Storage

  • Register –  berkecepatan tinggi; kapasitas terbatas
  • Random Access Memory (RAM) – volatile (jika cartur daya hilang, maka data akan hilang)
  • Cache Memory – penyimpanan sebelum ram RAM
  • Read-only Memory (ROM) – non volatile

B. Secondary Memory

  • Hard Disck
  • CD
  • DVD
  • Flas Disc
Bersifat non volatile, biasa nya di gunakan untuk menyimpan data
biasa nya di hitung menggunkan satuan “Kilobytes, Megabytes, Gigabytes, Terabytes”
8 bits =  byte

 Kilobyte  (KB or K)        1 KB  –> 1,000 bytes

Megabyte  (MB )            1 MB –> 1,000,000 bytes

Gigabyte  (GB )               1 GB –>  1,000,000,000 bytes

Terabyte  (TB)                1 TB –>  1,000,000,000,000 bytes


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