16 Flashcards Preview

Science > 16 > Flashcards

Flashcards in 16 Deck (18)
Loading flashcards...
1

Explain a triode tube

It's just like crackers to it has a negative side on the positive side but in the middle is a tube that block some of the negatives from getting over to the positive side and it's just like a start stop button it's called in and PN junction controls of the electrons can jump over to the other side this is also Morse code.Dass and in computers 01

2

Silicon

a semi conductor because it conducts electricity but not well electrons jump to silicon but they leave a hole where they once were in the electron behind it jumps into that spot but jumps to silicon and leaves a hole and that is why silicon on a semi conductor because it has missing electrons

3

Another name for npn junction

Transistor

4

Led

Light emitting diode

5

Mores law

Every two years you can double number of transistors same size as ice crystals

6

Babbage

Mechanical calculator

7

Slide rule

3 decimal place Calculator

8

ENIAC

Electronic numerical integrator calculated
Used deforest triode tube

9

Bits

8 digits

10

We count in base ten but calculators are

Base 2 (binary)
256 possibilities

11

Kilobyte

1,024 megabytes

12

ASCII

First programming language

13

C++

Today's most common programming language

14

Server sided vs Client sided

Server side it is one another company saves your information for you also called cloud computing the benefits is that it's easier and your computer doesn't need to be powerful but there's also a privacy concern they usually use a redundant server which means it saves your information at two different locations

Client side of computing is the machine you are using does everything this is good privacy wise but it's also bad if you were to have a fire something and that's why you can you stuff like memory card

15

LAN vs WAN

local area network
Wide area network

16

Why are weather forecasts only right 2 days in advance

Because the chaos theory says that there's too many changing variables in weather so it can never be accurate

17

DARPA

Darker was a government industry that start of the Internet in the 1980s looking for a way to see if atomic bomb's for possible they ended up making the Internet and everything to do an Internet gets chopped the tiny little pieces and put back together when they arrive a little pieces will always find them their way by themselves so if it's going from New York to Los Angeles but Chicago is down they could go to Texas and then to Los Angeles but it always find its way

18

Explain crookes tube
CRT?

There is a battery leading up to a glass tube and the negative electrons from the negative side all start going towards a target and the electrons that missed the target cause a shadow on the glass called photo chemical code
Cathode Ray Tubes