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...

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...

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 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...

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...

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...

Compare and Contrast Desktop and Laptop Components

Most of the functions that a desktop can perform can also be performed by a laptop. However, these two kinds of computers are built very differently and the parts are not interchangeable. As an example, a airplane and a helicopter can each travel to the same destination, but they cannot be repaired with the same spare parts. This is also true for laptops and desktops. Few components can be shared between desktops and laptops. Desktop components tend to be standardized. They usually meet...

Describe the Safe Installation and Removal of Laptop Components

There are a number of components on a laptop that might need to be replaced. Remember always to make sure that you have the correct replacement component and tools as recommended by the manufacturer. Some components are hot-swappable, which means that you can remove and replace them while the computer is on. Some components that you might need to replace include the following Each laptop manufacturer uses unique hardware installation and removal procedures. Check the laptop manual for specific...

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 Components

This section discusses the names, purposes, and characteristics of a computer's internal components, as shown in Figure 1-3. After completing this section, you will meet these objectives Identify the names, purposes, and characteristics of motherboards. Identify the names, purposes, and characteristics of CPUs. Identify the names, purposes, and characteristics of cooling systems. Identify the names, purposes, and characteristics of ROM and RAM. Identify the names, purposes, and characteristics...

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....