CAT REVISION - GRADE 10
1 Extended Software Concepts
Software is just a collection of instructions that tell a computer what to do.
A collection of programs known as application software helps users with particular tasks.
Software designed for computer operation, support, or control is known as system software.
comprises software for utilities, like antivirus programs.
The operating system is the system software that manages all of a computer's operations.
Examples are macOS Sierra Linux, Windows 8 and Windows 10.
Features of the operating system
Controls the computer's hardware and software.
Upholds security and offers an interface
Because an operating system is necessary for every computer to work, it is an essential
component.
Information Processing Cycle
1. Input = the computer receives instructions
2. Processing of data
3. Output = computer gives feedback on a result of its processing
4. Storage = lets us keep a permanent record of our work
Booting up : the procedure via which an operating system is loaded into a computer
Examples of Output Devices
Monitor
Printer
Printers = produce a hard copy which means they produce output on paper
LASER PRINTERS INKJET PRINTERS
★ Use toner rather than ink ★ Ink sprays dots on paper
★ Typically more costly to purchase ★ Reasonably priced
than inkjet
★ Prints quicker than with inkjet ★ Not as quick as laser printers
printers
, ★ Replacement toner costs more ★ Although less expensive, ink
money cartridges require frequent
replacements.
What are Shortcuts?
Links to any file, folder, or other resource can be made as shortcuts.
Example : f1 = help esc = escape
What is Touch Typing?
The capacity to touch type without having to glance at the keyboard and type at rates of
more than 120 words per minute; Typing Tutor software teaches you this technique.
Integrated Software
Software that comes in a package that includes word processors, spreadsheets,
presentations, and communication tools, such as Microsoft Office.
Licence Contracts
A licence is an agreement that binds the user and the software provider.
EULA = End User Licence Agreements = Describes what a user may or may not do with the
software.
Software piracy is the term used to describe the unauthorised installation, duplication, and
distribution of proprietary software (one backup copy is permitted).
Software that is licensed and that the user can only use under specific circumstances is
known as proprietary software.
Single User Licence: Individuals are only permitted to install a single copy of software they
have purchased. You can usually create one backup copy of software that you buy on CD or
DVD.
Site Licence = Allow an organisation or company to install software on its computers an
unlimited number of times.
Free Software
Freeware is fully functional software that is unrestricted in its usage and copying.
Shareware is software that is available for a 30-day trial period. Shareware can be
downloaded and tested for free.
Software that is freely utilised, distributable, and modifiable (as long as you have the source
code) is known as open source software.
1 Extended Software Concepts
Software is just a collection of instructions that tell a computer what to do.
A collection of programs known as application software helps users with particular tasks.
Software designed for computer operation, support, or control is known as system software.
comprises software for utilities, like antivirus programs.
The operating system is the system software that manages all of a computer's operations.
Examples are macOS Sierra Linux, Windows 8 and Windows 10.
Features of the operating system
Controls the computer's hardware and software.
Upholds security and offers an interface
Because an operating system is necessary for every computer to work, it is an essential
component.
Information Processing Cycle
1. Input = the computer receives instructions
2. Processing of data
3. Output = computer gives feedback on a result of its processing
4. Storage = lets us keep a permanent record of our work
Booting up : the procedure via which an operating system is loaded into a computer
Examples of Output Devices
Monitor
Printer
Printers = produce a hard copy which means they produce output on paper
LASER PRINTERS INKJET PRINTERS
★ Use toner rather than ink ★ Ink sprays dots on paper
★ Typically more costly to purchase ★ Reasonably priced
than inkjet
★ Prints quicker than with inkjet ★ Not as quick as laser printers
printers
, ★ Replacement toner costs more ★ Although less expensive, ink
money cartridges require frequent
replacements.
What are Shortcuts?
Links to any file, folder, or other resource can be made as shortcuts.
Example : f1 = help esc = escape
What is Touch Typing?
The capacity to touch type without having to glance at the keyboard and type at rates of
more than 120 words per minute; Typing Tutor software teaches you this technique.
Integrated Software
Software that comes in a package that includes word processors, spreadsheets,
presentations, and communication tools, such as Microsoft Office.
Licence Contracts
A licence is an agreement that binds the user and the software provider.
EULA = End User Licence Agreements = Describes what a user may or may not do with the
software.
Software piracy is the term used to describe the unauthorised installation, duplication, and
distribution of proprietary software (one backup copy is permitted).
Software that is licensed and that the user can only use under specific circumstances is
known as proprietary software.
Single User Licence: Individuals are only permitted to install a single copy of software they
have purchased. You can usually create one backup copy of software that you buy on CD or
DVD.
Site Licence = Allow an organisation or company to install software on its computers an
unlimited number of times.
Free Software
Freeware is fully functional software that is unrestricted in its usage and copying.
Shareware is software that is available for a 30-day trial period. Shareware can be
downloaded and tested for free.
Software that is freely utilised, distributable, and modifiable (as long as you have the source
code) is known as open source software.
