COMPUTER HARDWARE - CLASSIFICATION OF HARDWARE - SYSTEM UNIT - PERIPHERALS - INPUT- OUTPUT - STORAGE DEVICES (SS1 NOTES)

-

 COMPUTER HARDWARE - 

CLASSIFICATION OF HARDWARE 

SYSTEM UNIT - PERIPHERALS - INPUT- OUTPUT - STORAGE DEVICES

Meaning of Computer Hardware

These are the physical components of the computer system. They are the tangible parts that can be seen and touched. There are two major parts, namely:
a. The system unit 
b. The peripherals
     c.  Input Devices
     d. Output Devices
     e. Storage Devices
a. The System unit: The system unit is the rectangular casing that houses (contains) several important components that controls the operation of the computer system such as the motherboard, CPU (Microprocessor), RAM, Sound card, video card, CD drive, Floppy disk drive etc. It also provides interface for connection of the peripherals.

b. Peripherals: These are the devices connected to the system unit for the purpose of input, output and storage operations. Examples of peripheral devices are keyboard, Mouse, Monitor, Printer, Scanner, DVD, CD, USB flash drive etc.
c. Input Devices : These are used to provide data and control signals to an information processing system, such as a computer or information appliance. Examples of input devices include keyboards, mouse, scanners, cameras, joysticks, and microphones.
d. Output Devices :-  These are hardware devices which give out the result of the entered input, once it is processed (i.e. converts data from machine language to a human-understandable language), is called an output device. For example printer, monitor, etc.
e. Storage Devices: - These can be used to store digital data and applications which may be in the form of images, video, audio, etc. is called a storage device. Examples are: Hard Drive Disks, Floppy Disks, Tapes,Compact Discs (CDs), DVD and Blu-ray Discs, USB Flash Drives,Secure Digital Cards (SD Card)s, Solid-State Drives (SSDs), Cloud Storage, Punch Cards

Class Activities
1. Define Computer hardware,
2. Explain each of the following hardware classifications and list three (3) examples for each:
(a) Peripherals
(b) Input devices
(c) Output devices
(d) Storage device

Comments

Post a Comment

Popular posts from this blog

COMPUTER STUDIES JS2 _ SECOND TERM - MID TERM PROJECT

-
Image
  MID TERM PROJECT MARKS OBTAINABLE: 50 MARKS Use Basic 256 app to write/run BASIC programming language to : 1. Find the area of a triangle 2. Find the perimeter of a rhombus 3. Area of a trapezium 4. Volume of a cuboid Steps: (a) Download and Install BASIC 256 on your laptop. (b) Run your project and screenshot your result (c) Submit your project to : sunlitedigitalhub@gmail.com
Read more

COMPUTER STUDIES _ MID TERM PROJECT –JS3 (SECOND TERM)

-
Image
  MID TERM PROJECT –JS3    (40MARKS) 1. Create a spreadsheet document (i.e using Microsoft Excel) for company payroll as shown below: (a)   Find the   basic pay for each staff by using the formula: BASIC PAY = HOURS WORKED * PAY PER HOUR (b) Add five (5) names of your choice, hours worked, and pay per hour to make the records 10. (c) Find the total BASIC PAY on row 11   S/N NAMES OF STAFF HOURS WORKED PAY PER HOUR (N) BASIC PAY (N) 1 IJILUSI OPEYEMI 2 400   2 OMONIYI SOLA 3 200   3 AGATI FATGAN 4 100   4 UMAR ABDULAHI 3 100   5 IBEKWE EBUKA 2 200   6         7        
Read more

JS3 CLASS - ONLINE CLASS TASK_COMPUTER VIRUS (COMPUTER STUDIES)

-
Image
  ASSESSMENT TASK PART A 1. What is a computer virus? a) A program designed to protect your computer b) A program designed to improve computer performance c) A program designed to harm or disrupt computer operation d) A program designed to enhance internet speed 2. Which of the following is NOT a common way computer viruses spread? a) Email attachments b) Social media posts c) USB flash drives d) Voice commands 3. What is the primary purpose of a computer virus? a) To make your computer run faster b) To steal personal information c) To damage or corrupt data d) To improve internet security 4. Which of the following is an example of a preventive measure against computer viruses? a) Regularly updating antivirus software b) Sharing passwords with friends c) Downloading files from unknown sources d) Ignoring software updates 5. What is the term for a program that appears legitimate but performs malicious activities? a) Trojan horse b) Spyware c) Firewall d) Antivirus 6. Which of the follow
Read more