Architecture Diagram Explanation

Input Devices:
1. Graphics Tablets
2. Cameras
3. Barcode Reader
4. Keyboard
5. Trackpad
6. Microphone
7. Mouse
8. Scanner

Output Devices:
1. Monitor
2. Printers
3. Projectors
4. Speakers

Both Input & Output Devices:
1. Network Cards
2. Touch Screen
3. USB
4. Headsets
5. FAX

Program
Ask student for name, scores
Save the name & scores
Add scores
Save scores in sum
Calculate average
save average
print name, scores, average

Name 99, 93, 92

this is all stored in Random Access Memory (RAM)
RAM is a volatile memory - when the power is off, everything that is stored in RAM is erased (temporary memory)

Central Processing Unit
Control Unit and ALU (Arithmetic Logic Unit)
ALU - arithmetic operations and evaluates logical statements
Control Unit - sees through the execution line by line statements of the program (resource management)

Computer Architecture Diagram

Fundamentals of Computer Architecture

Only thing it responds to is an electrical pulse or no electrical pulse
2 states it responds too, so we use a binary system
0-bit
1-bit
Combination of 8 bits is called a byte (megabyte, gigabyte, terabyte, etc...)
byte is a unit of memory
every symbol on a keyboard is called a character
each character is represented by a combination of bits
A - 01010011
Compiler
entire code translation
takes a source code, points out any errors, and when the entire code is correct, it converts the source code into a machine language/binary code/binary language/object code
Interpreter
line by line translation

source code --> compiler/interpreter --> object code
java, c++, etc...                                         01010011010

operating system is a system's program that helps us to work with all the resources of the machine
application software - third party apps that have a specific purpose