Conversion

Data Conversions

Binary - Decimal

Decimal - Binary

Binary - Hexa-decimal

Hexa-decimal - Binary

Decimal - Hexa-decimal

Hexa-decimal - Decimal

Data Representation

 Digitizing - process of inputting files then converting them into their respective binary form for the computer to analyze

Basic Devices for Storing Binary Info:

• Electronic
• Magnetic
• Optical

More Info: Bit is the smallest unit of data in a system

Byte is equal to 8 bits = 1 character

Data Cycle

The cycle is composed of:

• Input Device
• Main Memory (RAM)
• Central Processing Unit (CPU)
• Output Device

Data is plugged in with the input device then the RAM stores it. Next, the data goes to the CPU so that it will be processed and then goes back to the Main Memory. Lastly, data goes out via output device

Software

Software refers to a program which instructs the computer system on what to do

2 Types of Software:

1. System Software- manages,maintains,and controls computer resources
2. Application Software-performs specific personal, business, scientific processing tasks

Under System Software:

• System Management Software- Operating System (OS)
• System Development Programs- Compilers

Platforms- defined by a processor and an operating system

Hardware Specs

Hardware Specs or Hardware Specifications are guidelines used for knowing the limitations of a certain hardware device or gadget.

Here are the Basic Computer Hardware Specs:

• Main Memory   

• CPU Clockrate and Wordsize 

• Secondary Memory 

• Video Memory 

• GPU 

• Audio Adapter 

• Wireless/LAN Adapter 

• Display Adapter

The Final Countdown

4th Quarter = Last Chapter = The END

The end of the school year is nearing and also Summer but...

I CAN'T SMILE!

Why? because that means no more school, no more seeing your fiends, no more seeing your school, and most of all no COMPUTER SCIENCE!

But anyways...this quarter will be all about COMPUTERS/COMPUTER SYSTEM. 
Well I'll just hope this quarter will be worth it.....

Computer System

A Computer System is basically a combination of hardware and software. It processes inputs and creates a set of outputs.

There are 3 main types of Computers:

• Digital
• Analog
• Hybrid

And under DIGITAL there are 4:

1. Micro Computer
2. Mini Computer
3. Mainframe Computer
4. Super Computer