Macbook Repair - Mecnote

COMPUTER ARCHITECTURE

Komputer merupakan antara peranti yg paling penting dalam dunia teknologi sekarang ni, tapi masih ramai diantara kita yg hanya tahu menggunakan Komputer tanpa mengetahui komponen2 asas yg terdapat dalam sesebuah peranti komputer. Di sini Abg Job nak kongsikan dengan pembaca semua ttg basic sesebuah peranti Komputer atau dalam bahasa inggeris dikenali sebagai 'Computer Architecture'. Haa utk artikel kalini juga special sbb kita kongsikan dalam bahasa inggeris, sbb Abg Job yakin ramai yg biasa dgan istilah2 bahasa inggeris, so lebih mudah utk faham.

A computer is a complex device containing many sub-systems. Each sub-system is a piece of computer hardware (or part of a piece of computer hardware.) How these pieces interact is called the "Computer Architecture". The hard of a computer includes:

• CPU - known as the brain of the computer
• Motherboard - The spine of the computer
• Power Supply - the stomach of the computer
• BUS - "trucks" data around the computer
• Clock - tells the CPU to start the next instruction
• Network Card - the cell phone of the computer
• Monitor - the face of the computer
• Fans - computers can cook food, they are so hot. We must cool them down.
• Memory:
  Layers:
  
  1. Registers (1 clock cycle)
  2. Primary Cache: ~1 nano-second cache primary
  3. Secondary Cache: 10 nano-seconds
  4. fast RAM: 70 nanoseconds or less
  5. fast disk: 10 milliseconds (10,000,000 nanoseconds)
  6. CD/DVD: 160 milliseconds (160,000,000 nanoseconds)
  Memory Acronyms you should know:
  
  1. ROM - Read Only Memory
     ROM is memory that is "hard coded" from the manufacturer and never changes, such as the instruction to "boot" up your computer.
  2. RAM - Random Access Memory
     Ram is the core memory you buy for any machine. It is often sold (today) in .5, 1, and 2 GIG boards.
• IO Devices
• Graphics Card / Monitor
• Keyboard
• Disk Drive
• Tape Backup
• CD ROM

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