Courses
Lesson 2 - The Components of a Computer
The components of a computer are:
The Keyboard, this is used to type (input) information.
The Monitor or Visual Display Unit (VDU) is used to view information entered into the computer. A monitor’s picture quality or resolution varies depending on the number of pixels (dots of light on the screen). The higher the resolution the better the picture. Size of screen also affects the apparent quality of the picture, but price increases steeply with larger screen sizes.
The Mouse controls a movable cursor on the screen, allowing data input by selecting options.
The Computer is normally housed in a metal or plastic casing, sometimes called the system unit, and contains the following items:
The Electronics such as the Central Processing Unit (CPU) and all the other components. The Hard Disk Drive (HDD) is used to store programs and data.
Any piece of external equipment that is attached to a PC, rather than built into it, is termed a peripheral device. This covers external storage devices, printers, scanners, in fact any device that enhances the capabilities of a PC system. (For information about common input and output devices refer to Lessons 6 & 7.)(For information about types of memory refer to Lesson 10.)
Lesson List
- Lesson 1 - Types of Computers Duration: 00:33:03
- Lesson 2 - The Components of a Computer Duration: 00:20:48
- Lesson 3 - Hardware and Software & Revision Duration: 00:29:09
- Lesson 5 - The Central Processing Unit Duration: 00:21:45
- Lesson 6 - Input Devices Duration: 00:12:30
- Lessons 7 & 8 - Output devices and Revision Duration: 00:17:55
- Lesson 9 - Storage Devices Duration: 00:21:58
- Lesson 10 - Types of Memory Duration: 00:15:26
- Lesson 11 - Measuring Memory Duration: 00:16:31
- Lesson 12 - Computer Performance Duration: 00:17:31
- Lesson 13 - Revision Duration: 00:08:37
- Lesson 14 - Operating System Duration: 00:15:15
- Lesson 15 - Application Software Duration: 00:18:52
Teachers Info
Richard Murphy
- Website: http://www.rtsolutions.co.za
-
Pastor at Word of Faith Christian Centre and Owner at RT Solutions. RT Solutions was established in 2003 as total business solutions company in the Garden Route area. Situated at 67 York Street we have been offering specialized solutions to home and business clients for more than 17 years.
Contact Us
126 Merriman Street
George, 6529
Western Cape
South Africa
Email: richard@hisheart.co.za
Tell: 044 874 1993
Cell: 083 275 6546