CompTIA A+ is the preferred qualifying credential for technical support and IT operational roles. It is is a basic certification that demonstrates proficiency with computer hardware, software, networking, cloud, and operating systems (OS). A+ helps prove the recipient’s proficiency with the use of computers and related devices.
- Identifying the problem
- Establishing a theory of probable cause
- Testing the theory to determine caused
- Establishing a plan of action to resolve the problem and implementing the solution
- Document findings, actions and outcomes
- Create user documentation
- Explanation of the purpose and characteristics of CPU’s and their features
- Comparing and contrasting the different Windows operating systems and their features
- Demonstrating proper us of user interfaces
Covers CompTIA A+ Essentials exam areas 1.3 Classify power supplies, types and characteristics and 6.1 outlining the purpose of appropriate safety. Students learn that electricity is the source of energy that powers electronics and appliances. Voltage is the force of electricity. Current is a measure of the flow of electricity. Resistance is a force that opposes current. Students learn that power supplies convert wall voltage to the various DC voltages required by the computer’s components. To a small extent, the power supplies condition the power signal and bridge very short power outages. Students learn about power demands of various computer components, power supply ratings, and the power connect to standards used in modern computers.
Covers CPUs and the chips that process instructions, manipulate data, and control the interaction of other PC components. Students learn that processors are sold as part of chipsets, which together control the core functions of the computer. The unit covers slots and sockets and the enormous amount of heat and required active cooling mechanism to prevent overheating. Lastly, students learn that the motherboard is the primary circuit board in a personal computer. They learn sizes and shapes that describe their form factor.
Covers the BIOS (Basic input/Output System). They learn that BIOS is stored on a chip that isn’t erased when you turn off the power. Hardware configuration data used by the BIOS is stored in CMOS. CMOS data is retained when the power is off, thanks to a battersy installed on the motherboard.
Students learn that the BIOS tests the computer’s hardware at boot time by following the POST process. They learn about various beep and numeric error codes that might be reported during the POST if the BIOS detects a hardware failure. Students learn how to determine the order of boot devices I the computer.
Students learn that RAM is the hardware component that stores active data and applications. They learn about various units such as MB and GB, which ae used to describe the quantity of RAM installed in the PC. Students learn about the characteristics of memory such as synchronous or asynchronous.
Students learn that chips are bundled into packages called modules. The unit covers detecting memory errors. Students learn how to monitor memory usage through the task manager.
The unit covers the categories of buses: address, data, expansion and video. Students learn about adding adapters for hard drives, modems, and networks through the expansion bus. Interrupts, I/O addresses, IRQ and DMA channels are covered in detail. Students also learn about the PCI bus, a 32-bit or 64-bit expansion bus. VLB and AGP video standards are described.