(a)i) Define the term computer system.
(i) List the major components of the computer system and give one example of each.
(b)(i) List two activities involved in transferring data into information. (i) Write the following acronyms in full:
(1) EDSAC (11) EDVAC
Explanation
(a)) Computer system is defined as an electronic gadget (component / part/ device/ machine) which accepts/ accesses data, stores data, manipulates data and produces output using step-by-step instructions.
OR Computer system is a machine / device that has the hardware, software and user working together for data processing activities thereby producing the output
(ii)
|
COMPONENTS OF COMPUTER SYSTEM |
EXAMPLES |
|
System Unit |
CPU/Processor/system clock, Memory, Power Supply, Cooling fan Motherboard and its components (e.g ports, expansion slots) Connectors/Data cables, Add-on cards (VGA, Sound card, NIc), Hard drive, Floppy drive, CD drive and Zip drive |
|
Peripherals |
Keyboard/MDI/keyboard, Mouse, Monitor Hard drive disk Floppy drive |
|
Application Software |
General purpose applications: Word processing. Spreadsheet, Database, Desktop publishing, Graphics, Presentation, Web design Special purpose applications: (User application) Accounting. Payroll package, Educational software, Simulation software, Business information system software, Entertainment software, Multimedia software, Enterprise infrastructure software. Media development sot ware, Product Engineering software. |
|
System Software |
Operating system. Utility software Translator |
OR
|
COMPONENTS OF COMPUTER SYSTEM |
EXAMPLES |
|
HARDWARE |
CPU Processor / System clock Memory Power Supply Motherboards and its components (e g ports, expansion Connectors/Data cables slots) Add-on cards (VGA, Sound card, NIC), Keyboard/MDI/ keyboard/Mouse, Joystick. Scanner, Microphones Monitor, Speaker, Printer, Plotter Hard drive, Flash drive/ External hard drives/Media card reader. |
|
SOFTWARE |
General purpose applications : Word processing, Spreadsheet, Database, Desktop publish Graphics, Presentation. Web design. Special purpose applications: Accounting. Payroll package, Educational software Simulation software, Business information system software Entertainment software. Multimedia software, Enterprise infrastructure software, Media development software, Production Engineering software Operating system (e g. any o/s), Utility software (e.g. any utility software) Translators (e.g. Compiler) |
(b)(i) Activities involved in transferring data into information:
Data capturing / collection/ collection / gathering/ receiving.
Classification/Sorting. Coding.
Summarizing.
Input
Data processing / Calculating / editing manipulation.
Validation.
Translating.
(ii) (i) EDSAC: Electronic Delay Storage Automatic Calculator/ Computer.
(ii) EDVAC: Electronic Discrete variable Automatic Computer.