16. The microelectronics is the technology of

A. microwaves
B. microcomputers
C. chips
D. automatic processing
E. None of the above

17. Who developed the first personal computer spreadsheet package called Visicalc?

A. Niklaus Wirth
B. Dan Bricklin
C. Bob Frankston
D. both (b) and (c)
E. None of the above

18. When was the X Window System born?

A. 1984
B. 1989
C. 1988
D. 1990
E. None of the above

19. A double sided magnetic disk pack has six disks. Can you tell how many surfaces of this pack are normally used?

A. 10
B. 12
C. 6
D. 9
E. None of the above

20. The Santa Clara Valley, California is popularly known as Silicon Valley of America because

A. huge deposits of silicon are found there
B. many silicon chip manufacturing firms are located there
C. Santa Claus visits it every Christmas
D. it is full of large grain sand
E. None of the above