COMPUTERS

COMPUTERS

1. HARDWARE

   • EXTERNAL COMPONENTS
     • Monitor
     • Keyboard
     • Mouse
     • Webcam
   • PHYSICAL PARTS
   • INTERNAL COMPONENTS
     • Main ports and connectors
       • Ports
         • are used to connect input/output peripherals to the motherboard
           • USB: permits interconnection with practically any device. USB connection carries data and electrical current
       • Connectors
         • RJ45: network connector VGA / DVI-VGA / HDMI: graphics connectors
     • Microprocessors
       • basically the brains of a computer, where all data is processed
     • Sound Card
       • a circuit board that deals with the input and output of the sound
     • Motherboard
       • main circuit board of a computer. It holds the CPU, the memory chips and various connections.Chipest
     • Backing Storage
       • Internal
         • Hard disk drive (HDD): uses a magnetic recording system and a moving head
         • solid State Disk (SSD): they don’t contain moving parts, so they are faster and more efficient. They have a limited number of read-write cycles. More expensive.
       • External
         • CDs, DVD, Blu-Ray, USB flash drives, memory cards,...
         • online Storage (Cloud)
     • Video Card
       • a circuit board that generates video output to the monitor. Video cards have their own processor and memory.
     • Internal Memory
       • is the area where the computer stores or remembers data.
   • physical parts of a computer and related devices (all the parts you can physically touch).

2. SOFTWARE

   • Programs
   • Computer Applications
   • Instructions
   • Operating System
   • the programs that a computer runs, such as operating system (e.g. Windows) and Application software (like Microsoft Word, games and so on).