Computer History

# What is the Z1?

###### Wiki User

###### June 15, 2009 10:15PM

The Z1 was probably to be the 1st electronic computer and was

invented by Konrad Zuse.

## Related Questions

###### Asked in Mobile Phones, T-Mobile

### How do you convert Pi-network to T-network?

Any pi network can be transformed to an equivalent T network.
This is also known as the Wye-Delta transformation, which is the
terminology used in power distribution and electrical engineering.
The pi is equivalent to the Delta and the T is equivalent to the
Wye (or Star) form.
Pi NetworkT Network
The impedances of the pi network (Za, Zb, and Zc) can be found
from the impedances of the T network with the following
equations:
Za = ( (Z1*Z2)+(Z1*Z3)+(Z2*Z3) ) / Z2
Zb = ( (Z1*Z2)+(Z1*Z3)+(Z2*Z3) ) / Z1
Zc = ( (Z1*Z2)+(Z1*Z3)+(Z2*Z3) ) / Z3

###### Asked in Complex Numbers

### Given the three numbers z1 z2 z3 show that these complex numbers are vertices of an equilateral triangle inscribed in a circle?

An equilateral triangle is always inscribed in a circle.
This means that if you can prove that z1, z2 and z3 are the
vertices of an equilateral triangle, they automatically lie on a
circle subscribing it.
Compute |z1-z2|, |z1-z3| and |z2-z3|. These need to be equal for
z1, z2 and z3 to lie on an equilateral triangle. If not, they
aren't lying on an equilateral triangle.
for z=a+ib, |z| = (a^2+b^2)^(1/2).
To find the center c of the circle, note that
(z1-c)+(z2-c)+(z3-c) = 0, hence,
c = (z1+z2+z3)/3.

###### Asked in Computers

### What did the Z1 do?

###### Asked in Car Computers and Sensors

### How do you reset PC1555rkz?

Partition reset:
1. Push hash (#) for 5 seconds
2. Push number 1 for 5 seconds
If this is not successful, try a whole system reset:
Turn off the AC and remove battery
Remove Z1 wiring
connect PGM1 and Z1 with a piece of wire
Turn on AC
Wait until Z1 red LED starts flashing
Turn off AC
Remove PGM1 Z1 shortcut
Rewire Z1
Put back the battery
Turn on AC