Apple II (Computer) 32 Programming 32 BASIC (Computer program language) 14 Apple IIe (Computer) 4 Computer graphics 4 LOGO (Computer program language) 4 Data processing 2 Pascal (Computer program language) 2 Apple II Plus (Computer) 1 Business 1 Business BASIC (Computer program language) 1 Computer programs 1 Computers 1 Engineering 1 Geometry 1 Juvenile literature 1 Macintosh (Computer) 1 Minicomputers 1 PET (Computer) 1 Programming (Computers) 1 Science 1 TRS-80 computers 1