• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

System Unit Components

Extracts from this document...

Introduction

FUNCTIONS OF SYSTEM UNIT COMPONENTS The case that contains electronic components of the computer used to process data is termed as System. The Processor, Memory, Adapter cards, Ports, Drive bays and Power supply are the common components inside the system unit. MOTHERBOARD It is the main circuit board of a computer. It contains connectors for attaching other hardware and boards. The motherboard contains the CPU, BIOS, memory, mass storage, serial and parallel ports, expansion slots and all controllers to control the peripheral devices like the monitor, mouse and disk drives. The motherboard connects to every part of the computer, directly or indirectly. All the chips in the motherboards are known as motherboard chips. The chipsets are an important motherboard component. It controls how the motherboard interacts with every other component in the system. PROCESSORS The processor is the main chip in the motherboard. It is known as the heart of the computer system. It process data and executes instructions stored in the memory. ...read more.

Middle

THE BIOS It is a collection of software on a ROM chip, it is also a part of the Operating System. It is the Basic Input Output System which determines what a computer can do without accessing programs from the disk. The Bios contains the codes to control the keyboard, the monitor, the disk drives, serial communication etc. As the BIOS is placed on the ROM it's not affected by power failure, making possible the computer to boot itself than from an external sources like a CD. The Bios checks the default hardware configuration with the configuration data hence stable the system. So Bios is considered as the most important diagnostic tool available. It handles the input output flow of the computer data. http://www.webopedia.com/TERM/B/BIOS.html Author: Jupitermedia Corporation, New York POWER SUPPLY The PSU or the Power Supply Unit is a box in the CPU with a fan and a lot of cables. Its main job is to supply power to various system components in the right type and needed voltage. It accepts the electricity from the mains and converts it from AC to DC. ...read more.

Conclusion

There are two kinds of ports- Parallel and Serial port. Peripherals are of 3 types- Input, Output & I/O device. * Input device are devices through which user inputs data to the processor. Key board is an input device used to input information, mouse is used to input commands. * Output device shows the results of the input data or the command. * Input/Output device are the storage devices like a Ram or ROM. SPECIALISED CARDS They are the devices placed on the slots of the motherboard and connected to the buses to carry data. These slots are of three colors- the black slots are ISA slots which is connected to the buses that carry data at slower rate, the white slots are known as PCI slots which connects to the buses and have faster data transfer rate. The grey ones are the AGP slots used for Video cards. This slots have data transfer speed as same as of the processor speed. Ref: BTEC National- Information Technology Practitioners Book 1 (2nd edition) Author: Heinemann Publications ?? ?? ?? ?? Unit 2 - Computer Systems Hardware Systems -1- ND Diploma IT Practitioners ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Information Systems and Communication section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Information Systems and Communication essays

  1. Marked by a teacher

    Database Coursework on a Vehicle Rental System: Analysis

    5 star(s)

    an overdue fine system that calculates the fine exponentially to the number of days overdue. I was permitted by the manager to observe the working environment of the business for a few hours on a typical day. I found the offices of the business to be fairly tidy, and all

  2. Implementing a new system for Mastercare.

    This is because each Service engineer will have a separate copy of the computer system that will relate personally to that engineer but a member of the office staff will also be able to access any individuals program. A password system will need to be created for the program to prevent unauthorised access to the system.

  1. Data Processing Task. Mr Peters, the man who runs this particular Samsung store ...

    An advantage of this system is that it requires minimal staff training and it is written to improve the businesses process. However, a major disadvantage on the other hand is that it is extremely costly and time consuming. Database System (Microsoft Access)

  2. Health Book

    These IPPs extend not only to personal information given to private and public agencies and governments, but also extends to both private and public health organisations. The Privacy Act 1988 is not the only act assisting in the privacy of health records, National Health Act of 1953 was specially designed for the privacy of personal information through all health organisations.

  1. ICT Spreadsheet System

    Why computerisation will benefit the business? As it is a busy grocery, the jobs are needed to be done quickly. The data needs to be better organized making is appropriate and efficient. Computerised invoices for goods or services provided better and quicker. A business needs to be computerised so it can be more successful in day to day trade.

  2. User Guide. This system is for Regs Second Hand Cars. This user guide will ...

    3. The next step is to extract the spreadsheet onto the computers hard drive. From the last screen you should right-click on the zipped file and select 'Extract All'. Once this has been selected the 'Extraction Wizard should appear. From here you should simply select 'Next'.

  1. Communication & Employability Skills for IT. OCR Cambridge Technicals Unit 1 LO1-P1

    This also means meeting deadlines on time and bringing work in when it is due. Not coming on time will get the employer annoyed and also affect the business this will make an employee unreliable and make the work harder for others.

  2. Explain the function of computer hardware components

    IDE IDE stands for integrated drive electronics. IDE is used between a computer motherboards data paths or bus and the computer's disk storage devices. Hard drives are IDE devices and are controlled by IDE controllers. IDE has two types of controllers; primary and secondary controllers.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work