COMPUTER APPRECIATION
A computer is an electronic device that accesses data, processes data and stores
information.
Computer is an electronic device that accesses data, edits, process, store and bring
out information through the output devices.
Data is an unprocessed or raw fact. E.g:
Examples of Data: 98, "Ada", "Blue.
Datum is the singular of data.
Information is processed data. E.g: Ada scored 98 in Math, Chika is 14 years old and
her favorite color is blue.
Data = raw facts
Information = processed and meaningful data
TYPES OF COMPUTERS
- Desktop Computers: Stationary systems used in offices and homes.
- Laptops: Portable computers with integrated components.
- Tablets: Touchscreen devices without physical keyboards.
- Smartphones: Handheld devices with computing capabilities.
COMPONENTS OF A COMPUTER SYSTEM
HARDWARE are the physical parts of a computer system that are required to carry
out functions. E.g: keyboard, monitor, mouse.
- Input Devices: are those devices that are used to send or input commands in the
computer. E.g keyboard, mouse, light pen, joystick, Scanner etc.
- Output Devices: are those devices that displays or send out information in the
computer. They can also be seen as equipments which converts information to
human-readable form. It could be audio, video, text and graphics. E.g: printer, speaker,
monitor, headphone.
- Storage Devices: These are devices used for storing information or documents,
such as hard drives and USB flash drives.
SOFTWARE are sets of instructions or programs that tell a computer what to do. It's
the part you cannot touch or see. There are two types of software:
A computer is an electronic device that accesses data, processes data and stores
information.
Computer is an electronic device that accesses data, edits, process, store and bring
out information through the output devices.
Data is an unprocessed or raw fact. E.g:
Examples of Data: 98, "Ada", "Blue.
Datum is the singular of data.
Information is processed data. E.g: Ada scored 98 in Math, Chika is 14 years old and
her favorite color is blue.
Data = raw facts
Information = processed and meaningful data
TYPES OF COMPUTERS
- Desktop Computers: Stationary systems used in offices and homes.
- Laptops: Portable computers with integrated components.
- Tablets: Touchscreen devices without physical keyboards.
- Smartphones: Handheld devices with computing capabilities.
COMPONENTS OF A COMPUTER SYSTEM
HARDWARE are the physical parts of a computer system that are required to carry
out functions. E.g: keyboard, monitor, mouse.
- Input Devices: are those devices that are used to send or input commands in the
computer. E.g keyboard, mouse, light pen, joystick, Scanner etc.
- Output Devices: are those devices that displays or send out information in the
computer. They can also be seen as equipments which converts information to
human-readable form. It could be audio, video, text and graphics. E.g: printer, speaker,
monitor, headphone.
- Storage Devices: These are devices used for storing information or documents,
such as hard drives and USB flash drives.
SOFTWARE are sets of instructions or programs that tell a computer what to do. It's
the part you cannot touch or see. There are two types of software:
