Identify the Names Purposes and Characteristics of Motherboards

The motherboard is the main printed circuit board. It contains the buses, or electrical pathways, found in a computer. These buses allow data to travel between the various components that comprise a computer. A motherboard is also known as the system board, backplane, or main board. Figure 1-4 shows a variety of motherboards. The motherboard accommodates the central processing unit (CPU), RAM, expansion slots, heat sink fan assembly, BIOS chip, chip set, and the embedded wires that interconnect...

Types of Drive Interfaces

Hard drives and optical drives are manufactured with different interfaces that are used to connect the drive to the computer. When you install a storage drive in a computer, the connection interface on the drive must be the same as the controller on the motherboard. Some common drive interfaces are as follows Integrated Drive Electronics (IDE), also called Advanced Technology Attachment (ATA), is an early drive controller interface that connects computers and hard-disk drives. An IDE interface...

Identify Common Problems and Solutions

Computer problems can be attributed to hardware, software, networks, or some combination of the three. You will resolve some types of computer problems more often than others. A stop error is a hardware or software malfunction that causes the system to lock up. This type of error is known as the blue screen of death (BSoD) and appears when the system is unable to recover from an error. The BSoD is usually caused by device driver errors. The Event Log and other diagnostic utilities are available...

Identify the Names Purposes and Characteristics of Input Devices

An input device is used to enter data or instructions into a computer. Here are some examples of input devices Digital camera and digital video camera Biometric authentication device The mouse and keyboard are the two most commonly used input devices. The mouse is used to navigate the graphical user interface (GUI). The keyboard is used to enter text commands that control the computer. Digital cameras and digital video cameras, shown in Figure 1-20, create images that can be stored on magnetic...

Identify Common Preventive Maintenance Techniques for Laptops and Portable Devices

Because laptops are mobile, they are used in different types of environments. Some environments can be hazardous to a laptop. Even eating or drinking around a laptop creates a potentially hazardous condition. Consider what would happen if a drink were spilled onto the keyboard of a laptop. Many components are placed in a very small area directly beneath the keyboard. Spilling liquid or dropping debris onto the keyboard can result in severe internal damage. It is important to keep a laptop clean...

Install a CPU and a Heat Sink Fan Assembly

Heat Sink Assembly Motherboard

The central processing unit (CPU) and the heat sink fan assembly may be installed on the motherboard before the motherboard is placed in the computer case. Figure 3-2 shows a close-up view of the CPU and the motherboard. The CPU and motherboard are sensitive to electrostatic discharge. When handling a CPU and motherboard, make sure that you place them on a grounded antistatic mat. You should wear an antistatic wrist strap while working with these components. When handling a CPU, do not touch...

Identify Common Network Problems and Solutions

Network problems can be attributed to hardware, software, connectivity issues, or some combination of the three. You will resolve some types of network problems more often than others. Table 8-9 is a chart of common network problems and solutions. Table 8-9 Common Problems and Solutions Table 8-9 Common Problems and Solutions The computer can't connect to a popular Check to make sure that the DHCP server The computer can't connect to the network. The computer can't print using the network Check...

Describe Preventive Maintenance Procedures for Networks

Preventive maintenance is just as important for the network as it is for the computers on a network. You must check the condition of cables, network devices, servers, and computers to make sure that they are kept clean and are in good working order. You should develop a plan to perform scheduled maintenance and cleaning at regular intervals. This helps you prevent network downtime and equipment failures. As part of a regularly scheduled maintenance program, inspect all cabling for breaks. Make...

Determine Protocols and Network Applications

When designing a network, you must determine which protocols will be used. Some protocols are proprietary and work on only specific equipment, and others are open standards and work on a variety of equipment. Here are the details of the various network protocols Transmission Control Protocol Internet Protocol (TCP IP) represents a set of public standards that specify how packets of information are exchanged between computers over one or more networks. The TCP IP suite of protocols has become...

Identify the Names Purposes and Characteristics of Cases and Power Supplies

The computer case provides protection and support for the computer's internal components. All computers need a power supply to convert alternating-current (AC) power from the wall socket into direct-current (DC) power. The size and shape of the computer case is usually determined by the motherboard and other internal components. You can select a large computer case to accommodate additional components that may be required in the future. Other users may select a smaller case that requires...

Identify the Names Purposes and Characteristics of Internal Cables

Drives require both a power cable and a data cable. A power supply has a SATA power connector for SATA drives, a Molex power connector for PATA drives, and a Berg four-pin connector for floppy drives. The buttons and the LED lights on the front of the case connect to the motherboard with the front panel cables. Figure 1-10 shows some examples of internal PC cables. Data cables connect drives to the drive controller, which is located on an adapter card or the motherboard. Some common types of...

Identify the Names Purposes and Characteristics of CPUs

The central processing unit (CPU) is considered the computer's brain. It is sometimes called the processor. Most calculations take place in the CPU. In terms of computing power, the CPU is the most important element of a computer system. CPUs come in different form factors, each style requiring a particular slot or socket on the motherboard. Common CPU manufacturers include Intel and AMD. The CPU socket or slot is the connector that is the interface between the motherboard and the processor....