What is an operating system?
An operating system (OS) is the software that allows a user to run other applications on a computing device. It is the base infrastructure software component of a computerized system. It oversees and controls all major operations of the computer.
The most widespread computer operating systems are Windows from Microsoft and MacOS from Apples and Linux.
And the most popular operating system for mobile phones include Apple’s iOS and Google’s Android. We also have the RIM’s BlackBerry OS and Microsoft’s Windows Mobile.
The operating system manages a device’s hardware resources, including:
- Network devices such as modems, routers and network connections
- Storage devices such as internal and external drives
- Input devices such as a keyboard and mouse
- Output devices such as display monitors, printers and scanners
For large devices, the operating system has even greater responsibilities and powers. It is like a traffic warden — making sure that various programs and users running at the same time do not interfere with each other. The operating system secures a computer device or phone, making sure that unauthorized personnel or users do not access the system.
A-GPS (Assisted GPS) • A2DP (Advanced Audio Distribution Profile) • AAC (Advanced Audio Coding) Accelerometer • Airplane Mode • Alarm Clock • AMOLED (Active-matrix organic light-emitting diode) • Analog Technology • Android Operating System • ANT+ • Antenna • Aperture • APN (Access Point Name) • Apple iOS • Apple Pay • aptX • Autofocus • AVRCP (Audio/Video Remote Control Profile)
Calculator • Calendar • Camera • Call Alert • Capacitive Touchscreen • CDMA (Code-Division Multiple Access) • Cellular Network • Chipset • cHTML (Compact HyperText Markup Language) • Color • CPU (Central Processing Unit)
Earphone Jack • EDGE (Enhanced Data for Global Evolution) • EDR (Enhanced Data Rate) • EGPRS (Enhanced General Packet Radio Services) • EGSM (Extended GSM) • Emoji • EMS (Enhanced Message Service) • eSIM • EV-DO • External Display
Galileo (Global Navigation Satellite System) • GB (Gigabyte) • GBPS (Gigabits Per Second) • Geo-tagging • GLONASS (Global Navigation Satellite System) • GPRS (General Packet Radio Service) • GPS (Global Positioning System) • GPU (Graphics Processing Unit)
Maemo OS • mAh • Mass Storage • Material • MB (Megabyte) • Mbps (Megabit per second) • MeeGo OS • Megapixel • Megahertz • Memory Card Slot • microUSB • MMS (Multimedia Messaging Service) • Mobile Games • MHL (Mobile High-Definition Link) • MIM (Mobile Instant Messaging) • Mobile Application • Mobile Browser • Mobile messaging • Modem • MP3 (MPEG Layer 3) • MPEG (Motion Picture Experts Group) • MPEG-4 video • Multitouch • Music playback time (battery life) • Music Player
Screen Protection • Screen Resolution • Screen Size • Screen Type • Screen-To-Body Ratio • Secondary Camera • Sensor • Side keys • SIM Card • SIM Lock • Single-Band • Smart Watch • Smartphone • SMS (Short Messaging Service) • soft keys • Soft Reset • Special Dial • Stand-by time (battery life) • Stereo Speakers • Streaming • Stylus • SVGA (Super Video Graphics Array)