Mac OS 10 iOS (Electronic resource) 9 Macintosh (Computer) 7 Operating systems (Computers) 4 iPhone (Smartphone) 4 Computer programs 3 Computer networks 2 Electronic mail systems 2 Mobile apps 2 Mobile computing 2 Programming 2 Security measures 2 Word processing 2 Access control 1 Apple computer 1 Application software 1 Automatic speech recognition 1 Browsers (Computer programs) 1 Calendar 1 Cloud computing 1 Computers 1 Control (Psychology) 1 Data protection 1 Debugging in computer science 1 Digital techniques 1 Equipment and supplies 1 Information retrieval 1 Intelligent personal assistants (Computer software) 1 Internet 1 Maintenance and repair 1