Computer System Components :
Computer System Components Input
Keyboard, Mouse, Camera, Touch Pad
Processing
CPU
Output
Monitor, Printer
Storage
Floppy, Hard Drive, CD, DVD, Flash Drive
Generations :
Generations
The Binary System :
The Binary System Bits – Binary digits, or 0,1.
Bytes (8 bits) – ASCII, EBCDIC
One byte is the space needed to store one character, like the letter “A”.
Kilobyte (KB) – 1000 (actually, 1024)
Megabyte (MB) – 1,000,000
Gigabyte (GB) – 1,000,000,000
Terabyte (TB) – 1,000,000,000,000
Connecting Input Devices :
Connecting Input Devices Analog to Digital Conversion
Ports (gateways to the computer) – serial and parallel, USB.
Use of interrupts to alert CPU
Processing – CPU components :
Processing – CPU components Control Unit
Clock cycle regulates all operations
Arithmetic-Logic Unit (ALU)
Add Gates – Half adder, full adder
AND/OR/NOT gates
Memory
RAM –
Static (faster, less compact)
Dynamic
ROM
Output :
Output Conversion from Digital back to Analog
Video
Printers - Ink Jet, Laser
Sound
Controlling Devices (e.g. antilock brakes)
Storage :
Storage Hard Drive
160 GB on upwards today
As low as 256 KB less than 20 years ago!
CD-ROM
600-700 MB
DVD-ROM
4 GB - Red Laser, 27 GB- Blue Laser
Flash Drives
From 256 MB up to 100+ GB
Related Fields of Study :
Related Fields of Study Computer Science
Software development
Computer Engineering
Hardware design and development
Computer Information Systems
Management of technology in organizations.