Miyerkules, Disyembre 17, 2014

Oooohh! CPU has a components! Their are 3 . First is the Control units , it control all parts of computer system.Second is the Arithmetic logic unit, it performs logical operations and the last, the Registers, its just a temporarily stores the most frequently used instructions and data.



And about the control units, it manage for basic operations ,cool isnt?. Its a machine cycle Hahaha! Control units have two cycles, one is the Instruction cycle,in this it has two . The fetch and the Decode. Fetch gets the program instruction from the memory f computer Nd Decode ,figures out, what the prog is telling to do from computer. The second control unit is the execution cycle, in this we have an execute that performs the requested actions ,and the arithmetic Logic Unit (ALU) that performs a basic logic and arithmetic operations like adding,subtrating, dividing and multiplying also it compares alphanumeric data. 

For the Microprocessor Performance, it has three kinds : Data bus width, Word size , system clock and operation cycle. First lets talk about Data bus width, so they measured in bits ,isnt?  It is the number of path ways within the CPU that transfer data. Second is Word size, the CPU can process at one time ,and it is the maximum data.Third is system clock,it is the electronic circuit who generates pulses at rapid rate and it synchronizes the computers internal activities. And the last a operation cycle, also called clockspeed, so it is the number of clock cycles per second measured in megahertz or gigahertz. In Operation cycle it has two: the Superscalar operation and Pipelining operation

COMMUNICATION

Communication wich a computer transfers data, instruction and information to another computers. Its a sending and recieving device.Conversations through signals and signal to data. The Uses of communications are: E-mail,voice e-mail,fax,telecommuting,videoconferencing, groupware,global positioning system,bulletin board system and Internet. Use of communications at internet are: The web,E-commerce,telephony,structure of the internet animation. About channels it has "transmission media"in this there are two: Physical and wireless.In physical their are 3 cables :Twisted pair ,Coaxial
and Fiber optic.In wireless there are 5:Broadcast radio,Cellular radio,microwaves,communication satellite and infrared.

The transmission characteristic are:Signal type: analog or digital,Transmission modes:Asynchronous or Synchronous,Transmission direction:Simplex, half duplex and full duplex,and Transmission rates 

COMMUNICATION NETWORK (PART 2)
About the computer device first the modem, it has internal , external and fax.Second cable modem,it has CATV,External,Internal and Set-top box.Third is Multiplexers,combines a lot of data streams in one..The fourth is Network Interface card,enabling a PC or printer to connect a network.The fifth is connecting network,it has Hub ,repeater, bridge,gateway and router.

COMPONENTS on the motherboard

The Motherboard Components are:Back Panel Connectors & Ports,PCI Slots,PCI Express x16 Slot,Northbridge,CPU Socket,ATX 12V Power Connector,Front Panel USB 2.0 Connectors,Front Panel Connectors,IDE Connector,CMOS Battery,Southbridge13. SATA Connectors, Fan Headers, RAM Slotsandbout and  ATX Power Connector.

COMPONENTS INSIDE THE SYSTEM UNIT

System unit has a CPU,memory and other important pieces of hard ware.The components inside the system units are: CPU,Power Supply,Fan ,Hard Drive,Storage bays, DVD drive, Floppy drive,memory slots ,memory (RAM)modules,Motherboard, Expansion slots and Expansion cards. 

HOW COMPUTERS REPRESENT DATA

Computers represent 3 things: 1. Binary numbers 2. Binary Number system and 3. Bits and bytes.All computer data was converted to a series of binary numbers 1 and 0.The computer sees each as a collection 1s and 0s ,and we see a sentence as a collection of letters.

First is the Bits and Bytes, single unit of data called "Bit" is having a 1 or 0 value. Work with collection of bits ,grouping them to represent larger pieces of data.The Eight bits make up one byte.To represent state as you use 0 or 1 bit.

Second , Binary numbers represent numeric values using 0 and 1 symbols