by admin | Jan 22, 2024 | Operating System
It is a program on which application programs are executed It acts as an interface between the user & the computer Functions Security: OS uses password protection & other such techniques to protect user data Control over system performance: Monitors &...
by admin | Jan 22, 2024 | Computer Basics
Impact Printers: Dot Matrix Printer (DMP)- Advantages1. Inexpensive2. Widely Used3. Other language characters can be printed Disadvantages1. Slow Speed2. Poor Quality Daisy Wheel- Advantages1. More reliable than DMP2. Better quality3. Fonts of character can be easily...
by admin | Jan 22, 2024 | Computer Basics
Monitors: There are 2 kinds of screen used in monitor:1. Cathode Ray Tube (CRT): Disadvantages:a. High power consumptionb. Large in size2. Flat Panel Display: 2 kinds: 1. Emissive Display: Converts electrical energy into light. Example: LED...
by admin | Jan 22, 2024 | Statistics
Example: Suppose, Suzane scored 65 out of 100 in previous exam. And this time, she scored 82 out of 100. Therefore: New Value = 82Old Value = 65 Improvement = New Value – Old Value = 82 – 65 = 17 Improvement % = (Improvement / Old Value) x 100 = (17 /...
by admin | Jan 22, 2024 | Computer Basics
Keyboard Mouse Joy Stick Light pen: It is used to select a displayed menu item or draw pictures on monitor. Track Ball: It is used in laptop or notebook in place of a mouse. Scanner Digitizer: It is also known as tablet or graphics tablet, which can convert graphics...