Computer Hardware

Computer Hardware  

       

Definition of Computer Hardware

Computer Hardware can be defined as all the parts of the computer that are tangible.      
It can also be defined as the parts of the computer you can see, touch, or handle.      
Computer Hardware refers to the physical components of a computer system that perform the tasks of input, output, processing, and storage

Examples of Computer Hardware

       The following list represents a basic set of hardware found in most computers
  1. Printer
    2.        
  2. Motherboard
    3.          
  3. Hard Disck Drive
    4.          
  4. Floppy Dick Drive
    5.          
  5. Compact Disk Drive
    6.          
  6. Digital Vidoe Disk
    7.          
  7. Monitor
    8.          
  8. Keyboard
    9.          
  9. Power Supply Circuit
  10. Mouse, etc

Classification of Hardware

Hardware can be classified into:
  1. Input Unit
    2.        
  2. Output Unit
    3.        
  3. Storage or Memory Unit
    4.        
  4. Processing Unit

Input Unit

The input unit helps the users to enter data and instructions into the computer. This unit receives data and instructions from the user and transfers them to the computer for processing.

Examples of Input Devices

  1. Keyboard
    2.      
  2. lightpen
    3.      
  3. Joystic
    4.      
  4. mouse
    5.      
  5. Microphone
    6.      
  6. Web camera
    7.      
  7. Stylus
    8.      
  8. Gamepad
    9.      
  9. Touch pad
  10. Barcode reader

Output Unit

The output unit communicates the results of the computer's data processing to the user. It converts the digital data processed by the computer into a human-understandable format.

Examples of Output Devices

  1. Monitor
  2. Printer
  3. Speakers
  4. Projector
  5. Plotter
  6. Haptic Feedback Devices
  7. Digital Photo Frame: Displays digital photos

Memory or Storage Unit

The memory unit holds data and instructions for the computer.

Examples of Storage Devices

  1. Random Access Memory (RAM)
    2.      
  2. Read Only Memory (ROM)
    3.      
  3. Flash Drive
    4.      
  4. Hard Disk Drive
    5.      
  5. Compact Disk
    6.      
  6. Digital Versatile Disk (DVD)
    7.      
  7. Solid-State Drive (SSD)
    8.      
  8. Secure Digital card or SD card
  9. Magnetic Tape

Processing Unit

The processing unit is responsible for carrying out or executing instructions for computer programs.    

Examples of Processing Devices

  1. Central Processing Unit (CPU)
  2. Graphics Processing Unit (GPU)

Network Unit

This unit provides the infrastructure for multiple computer systems to communicate and share resources such as files, printers, and Internet access.    

Examples of Network Devices

  1. Modem
    2.      
  2. Routers
    3.      
  3. Hubs
    4.      
  4. Switches
    5.      
  5. Network Interface Card (NIC)
    6.      
  6. Load Balancers
    7.      
  7. Network Attached Storage (NAS)

Comments

Post a Comment

Popular posts from this blog

90 Objective Examination Questions in Major Subjects

An examination is a formal test that you take to show your knowledge or ability in a particular subject, or to obtain a qualification. This section of my blog is designed to provide 90 objective examination questions covering first, second and third term work in major subjects. I have also attached link the to essay/theory questions HERE Basic Science Computer Studies/Information Technology Biology Financial Accounting Basic Technology Business Studies Physical and Health Education Civic Education Christian and Religious Studies Physics Economics Geography Cultural and Creative Arts (CCA) Prevocational Studies Chemistry Mathematics Further Mathematics Government You can support CMPNOTE BLOG through the details below Account number: 0229727053 Account name: Joseph O...
Read more

Complete Computer Studies/ICT Curriculum for JSS 1 to SSS 3

Curriculum refers to the lessons and academic content taught in a nation, state, school or a specific course or program. This post contains a complete curriculum in Computer Studies as compiled by the Nigeria Ministry of Education. First, second and third terms scheme of work can be extracted from it. To access the simply click on the links below. JSS ONE CURRICULUM IN COMPUTER STUDIES TOPIC Historical Development of Computer CONTENT . Early counting devices · Fingers · Fingers · Stones · Sticks · Pebbles · Cowries 2. Mechanical Counting Devices · Abacus · Slide rule, ETC OPERATIONAL OBJECTIVES Students should be able to: 1. List early counting devices 2. State the problems in counting large numbers with those devices 3. Name mechanical counting devices 4. Name electro-mechanical counting devices TEACHING AIDS Fingers, Toes, Sticks, stone, Charts, etc JSS ONE COMPLETE CURRICULU...
Read more

JSS One Objective Questions in Computer Studies/Information Technology

1. One major Problem with early counting devices is that A. they are always accurate B. they waste time C. they can be used to count large numbers D. they were fast 2. UNIVAC is an acronym that stands for A. Universal Automatic Computer B. Universal Array Computer C. Unique Automatic Computer D. Unvalued Automatic Computer Click Here to view all Questions
Read more