Chapter 10A-10G Computers

ENIAC

Electronic Numerical Integrator and Computer

peripheral

external computer device

input device

any device putting data into a computer

output device

any device that presents/extracts data from the computer

operating system

the software that supports a computer's basic functions

What was the ENIAC known for

Being the first large scale computer

Where was ENIAC created?

University of Pennsylvania Moore School of Electric Engineering

What are the dimensions of the ENIAC?

100ft long 3ft wide 8 ft high

What was inside the ENIAC that represented on and off/ bite

17,468 vacuum tubes

The 17,468 vacuum tubes represented what?

On and off and a bite

Everything stored in a computer is

1's and 0's

What are the two types of computers?

Analog and digital

digital

computer that functions on 0's and 1's

analog

a device or system that represents changing values; signals

Two types of memory

RAM and ROM

An application

A program designed to do a particular job.

What do computers only know?

1's and 0's + doing the programmers command

decimal system

Base 10

binary system

Base 2; 1's and 0's

Hexidecimal

Base 16

mother board

the main circuit board for a computer everything attaches to

hard disk

A data storage unit inside a computer that can store a large quantity of data (60GB or more)

CPU

Central Processing Unit; the brain of the computer.

RAM

Random Access Memory

Bus

a bunch of wires that connects a device to the mother board

Megahertz

A measure of speed, one million cycles per second.

cycle

time to complete instruction

Examples of operating systems

Windows, DOS

What is flowcharting?

a graphical way to logically solve problems