IT puzzle: journey back in time

Telephone

What was the number for getting information at ETH until 1993?

  • 01 256 00 00
  • 01 256 11 11
  • 01 44 22 22

Until 1993, the main number of ETH Zurich was 01 256 11 11.

Further information can be found in the ITS Blog.

Telephone

What is the minimum number of wires needed to make a phone call?

  • 4 wires
  • 1 wire
  • 2 wires

To make a call, you need at least two wires on the telephone.

Further information can be found in the ITS Blog

What is this device?

  • acoustic coupler
  • analogue answering machine
  • telephonograph

This item is an acoustic coupler type TC301.

Further information can be found in the ITS Blog

What was the biggest disadvantage of core memory?

  • Not scalable
  • No non-destructive reading possible
  • The data becomes weaker after a short amount of time and disappears

No non-destructive reading possible

Further information can be found in the ITS Blog.
 

This storage might have cost around $ 250,000 at the time. How much would it have cost at today’s prices?

  • 3,000 CHF
  • 3 CHF
  • 0.03 CHF

0.03 CHF

More information on the ITS Blog

What is this device?

  • Coil of one of the first vaporizers VAPORETH
  • ERMETH module
  • Geodetic binoculars INFRARETH

ERMETH module

More information on the ITS Blog

What is this device?

  • Video player
  • Shredder
  • Tape eraser

Tape eraser

More information on the ITS Blog

When was this Apple Macintosh first produced?

  • 1976
  • 1981
  • 1984

1984

More information on the ITS Blog

JavaScript has been disabled in your browser