The modules should be inserted into the sockets beginning with the socket next to the system board edge.

NOTE

Figure 2-24: Drive Bays and Letters

Figure 2-25: Floppy Drive Signal Cable

Figure 2-26: Typical 3.5-inch Floppy-Disk Drive

Figure 2-27: Typical 3.5-inch Floppy Disk

Figure 2-28: #1 Pin on the Floppy-Disk Drive BERG Connector

This BERG connector interfaces the floppy-disk drive with the computer’s system board.

NOTE

Modern floppy-disk drives rely on the floppy-disk signal cable to identify which drive is which. A floppy-disk drive attached to the twisted section of the ribbon signal cable is identified by the system as drive A, while a drive attached to the untwisted section is drive B. For a one-drive system, the floppy-disk drive is connected to the twisted section of ribbon cable.

NOTE

The #2 pin may be clearly labeled or marked on some drives, rather than the #1 pin. In any case, match the color stripe on the cable with the numbered designator on the disk drive, and connect the end of the cable with the twisted section to the floppy-disk drive connector.

NOTE

When properly installed, the floppy-disk drive LED will normally be on the left.

NOTE

Figure 2-29: Secure Disk Drive to the System Unit Case

Figure 2-30: Connecting Power Supply to the Floppy Drive

Regardless of which size connector the drive requires, both the small and large connectors from the power supply are keyed to fit in only one way. This connection supplies power to the disk drive.

NOTE

CAUTION

DAMAGE POSSIBLE. Make sure the color stripe is aligned with the #1 pin. If connected incorrectly, the File Allocation Table on System Disk #1 will be destroyed when the computer is turned on. If you are unsure about this connection, consult with your instructor.

Figure 2-31: Hard-Disk Drive Unit

Figure 2-32: Box-within-a-Box Packing

For these hazard reasons (with this course), it is intended that the hard-disk drive already be mounted inside the system unit case, and remain there even after you have completed the final activity. With the hard-disk drive already mounted in the system case, making the various connections correctly will be your primary concern.

NOTE

One end of the signal cable is made to attach to the PRIMARY IDE 40-pin connector (IDE1) on the system board. The other end fits onto the hard-disk drive.

NOTE

Figure 2-33: HDD and HDD Signal Cable

Because the hard-disk drive is already mounted in the system unit case, making this connection may require a bit of patience. The flat ribbon cable that connects the disk drive to the system board carries data and control signals between the disk drive and the basic system.

NOTE

The Disk Controller on the drive’s printed circuit board contains the circuitry required to transfer information back and forth between the system board and the disk drive units. It allows the system board to control the system’s disk drives. A separate printed circuit board located on the disk-drive unit handles the transfer of information between the disk drive and the disks, hard or floppy, which contain the data.

NOTE

Figure 2-34: HDD Signal Cable and System Board

When installed correctly, the color alignment stripe will face towards the #1 pin. It is also very important that the hard drive is assigned as a “cs” and not a “slave.” This can be verified by viewing the settings diagram either on the bottom of the drive or in its User’s Manual.

NOTE

Figure 2-35: Connecting Power to the Hard-Disk Drive

This will supply power to the hard-disk drive. The power supply connector can only fit one way.

NOTE

Figure 2-36: Writing Data to an Optical Drive (CD-ROM Drive)

Figure 2-37: CD Data Encoding

Figure 2-38: Installing the CD-ROM Drive

In older systems, the CD-ROM signal cable can be connected to the BERG connector on the sound card.

NOTE

Figure 2-39: Connection Points of CD-ROM Drive Signal Cable

Figure 2-40: Connection Points of CD-ROM Drive Signal Cable

If the existing HDD signal cable has two drive connectors and will reach the CD-ROM drive’s location, you can connect the CD-ROM drive to this cable, rather than using a second cable. When sharing a signal cable with the HDD, the CD-ROM drive must be configured as a Slave drive. Refer to the CD-ROM User’s Manual for Slave/Master configuration information.

NOTE

Figure 2-41: Openings in the System Unit’s Back Panel

Figure 2-42: Creating Images by Scanning the CRT Screen

Figure 2-43: Video Controller Card

Figure 2-44: Securing the Video Controller Card

A good rule of thumb is to insert the card in the slot furthest to the left for the type of slot required.

NOTE

It is a very bad idea to plug in the monitor’s video signal cable when the computer is on. Doing so can be dangerous and may damage the monitor.

NOTE

Figure 2-45: Connecting the Monitor’s Video Signal Cable

Some connectors require the use of a small, flat-blade screwdriver to tighten the screws. Regardless of which type of screws your signal cable has, do not over-tighten them.

NOTE

Figure 2-46: Inserting the Monitor’s Power Cable

If you have connected the monitor’s power cable into an AC wall outlet, the power LED on the front of the monitor will be lit if the monitor’s power switch is turned to ON.

NOTE

Figure 2-47: Keyboard Connector Port

Figure 2-48: Standard 101-key PC-compatible Keyboard

Figure 2-49: Numeric Keypad Section of Keyboard

Figure 2-50: Typical Mouse (PS2)

If the keyboard connector does not fit into the socket easily, do not try to force it. This could result in damage to the connector, socket, or both. Instead, change its orientation slightly and try again.

NOTE

Figure 2-51: Serial and PS2 Mouse Ports on the System Case Back

Figure 2-52: Typical Character Printer

Figure 2-53: Impact Printing Method

Figure 2-54: Dot Matrix Versus Fully-Formed Characters

Figure 2-55: Ink-jet Printing

Figure 2-56: Laser Printing

Figure 2-57: Flatbed Scanner

Figure 2-58: Typical Trackball

Figure 2-59: Typical Joystick

Figure 2-60: Modem Communications

Figure 2-61: Internal and External Modems

Figure 2-62: Typical Multimedia System

Figure 2-63: Connecting the Printer

Most printers have built-in self-tests to help users make sure the printer is working properly.

NOTE

Refer to the Owner’s Manual for the correct phone connections to the modem. There are connector ports on the modem’s backing plate and may be labeled something similar to LINE and PHONE. If the modem is to be used without an added phone instrument, only the incoming telephone (LINE) cable is needed.

NOTE

Figure 2-64: CMOS Setup Utility Screen

The adjustment controls on computer monitors vary tremendously. Some have knobs and rollers, some have up/down or left/right pushbuttons, while others utilize special on-screen menu-based controllers. You must determine what type of adjustment controls your monitor has to perform these steps.

NOTE

Figure 2-65: Installing the System Unit’s Outer Cover