7CSC 134

COMPUTER & INFORMATION PROCESSING

SYSTEM UNIT

ADAPTER CARD

& BUSES

PROCESSOR

DATA REPRESENTATION &

the cleanliness

DRIVE BAY & POWER SUPPLY

MEMORY

PORT & CONNECTOR

question

SYSTEM UNIT- Case that contain electronic component of computer used to process data.

MOTHERBOARD- Main circuit board.

PROCESSOR- Known as central processing unit (CPU)- Interpret and carries out the basic instruction that operate computer.

Processor 2 types of instruction:

Control Unit and Arithmetic Logic Unit (ALU)

Offers multi-core processor

Processor cooling head sink and liquid cooling technology

Methods use multiple processor Parallel processing and massively parallel

processing (super computer)

Register

The system clock MACHINE CYCLE

Step 1: fetch

Step 2: Decode

Step 3: execute

Step 4: store

Fetch Decode Execute

Store

INSTRUCTION 1

INSTRUCTION 2

INSTRUC. 3

I. 4

Fetch

Decode

Execute Store Fetch

Decode

Execute Store

INSTRUCTION 1 INSTRUCTION 2

MC : 4 BASIC OPERATIONMC : WITH PIPELINING

MC : WITHOUT PIPELINING

MEMORY

3 Basic categories of items: operating system & other softwareApplication programThe data being processed by application and resulting info.

VOLATILE NON-VOLATILE

RAM :(DRAM, SRAM, MRAM)

Flash memory, CMOS, ROM, Cache, Memory Access Time

ADAPTER CARD Device that connect to the system unit.

• Sound card & video card

• Removable flash memoryMemory card, USB F/Drive and cards slot.

• Expansion slot socket on motherboard that can hold on adapter

card.BUSESAllows to various device both inside & attached to SU to communicate with each other.

• Divided into 2 parts : Data bus and Address bus

•Expansion bus : PCI Bus, PCI e, AGP, USB, PC card bus

PORT & CONNECTORPORT : Point of peripheral attaches to communicate with SU, so that it can send/receive info from computer.CONNECTOR : Joint a cable to a port.JACK : Used to identify audio & video ports.

Fireware Port

Port replicator

& Docking stations

USB Port Others :- Bluetooth port- SCSI port- e SATA port- IrDA port- Serial port- MIDI port

TYPES OF PORTS

Drive bays

Opening inside the SU in which can install additional equipment.

Power supply

component of SU that converts the wall outlet AC power into DC power.

Data representati

on

2 types of signal: Analog & Digital

Binary system:- Bit : smallest unit- Bytes : 8 bits group together

Product to clean the computer

Compressed air

Lint-free antistatic wipes & swab

Small computer vacuum

Screen cleaning solution

Antistatic wristband

Small screwdriver

(MARCH 2012, PART B, QUESTION 2)

1. List THREE (3) basic types of buses.

a) System bus @ front side bus (FSB)

Part of the motherboard and connects the processor to main memory.

b) Backside bus (BSB)

Connects processor to cache.

c) Expansion bus

Allows the processor to communicate with peripherals.

(SEPTEMBER 2011, PART A, QUESTION 7)

1. Below are the basic operations of a processor in machine cycle EXCEPT 

A. Fetching

B. Storing

C. Decoding

D. Deleting

Because in Machine Cycle, it only have Fetching, Decoding, Executing and Storing

(APRIL 2010, PART B, QUESTION 2) 

1. RAM is used to temporarily store instructions and data. What makes RAM important to a computer system? State any TWO (2) reasons.

a. Consist of memory chips that can be read from and written to by the processor and other devices.

b. Can accommodate multiple programs simultaneously.

VIDEO