Computer Systems

Computer Systems

1. Hardware amd Software

   • External
     • -Mouse -keyboard -printer -computer monitor -Processor and internal memory and storage devices
   • Internal
     • -The motherboard -Random access memory (RAM) -Read-only memory (ROM) -Video cards -Sound cards -Internal storage devices hard disk drive (HDD) and solid state drive (SSD)
   • Application soft ware
     • -Spreadsheet -Word processor -Control and measuring soft ware -Photo editing soft ware -Video editing soft ware -Graphics manipulation soft ware -Apps -Database

2. Impact of merging techaologies

   • -Virtual reality - 3-D and holographie -Computer-assisted translation -Quantum cryptography -Robotics -Vision enhancement -Artificial intelligence (AI) biometrics

3. Devices

   • Computers
   • Tablets
   • Mainframe
   • PC/desktop computers
     • Lap top computers
       • Mouse
   • Smart Phones
     • Smartwatches touchpade

4. Video camaras

   • Digital camaras
     • Webcams

5. Radio frequency identification (RFID) readers

   • RFID tag
     • antenna
       • Reader
         • Computer

6. Monitors

   • CRT (cathode ray tube monitors)
   • Thin film transistor (TFT)
   • LCD and LED monitors
     • (LCD) liquid crystal display
     • (LED) light emittingdiode

7. Optical character recognition

   • OCR AND OMR

8. (Codes QR)

   • Barcode readers

9. Safety and security

   • Hacking
   • Pharaning
   • Phishing
   • Cloud security
   • Authentication
   • Physical security
   • Encryption
   • Digital certificates
   • E-safety
     • Mobile phone
     • Computer or tablet
     • Games console
     • Wireless technology
   • Passwords
   • Security of data
     • -Hacking -phishing -Smishing -Vishing -Pharaing -Spyware -Viruses -Spam -Moderated and Unmoderated forums -Cooking