9 Memory modules ........................................................................................................................................ 117
10 Security ...................................................................................................................................................... 129
Protecting the computer ................................................................................................................... 129
Using passwords .............................................................................................................................. 130
Using antivirus software ................................................................................................................... 141
Using firewall software ..................................................................................................................... 142
Installing critical updates .................................................................................................................. 143
Installing a security cable ................................................................................................................. 145
11 Software updates ...................................................................................................................................... 146
Updating software ............................................................................................................................ 146
Updating the BIOS ........................................................................................................................... 148
x
Inserting an ExpressCard ................................................................................................ 114
Removing an ExpressCard .............................................................................................. 115
Securing system devices ................................................................................................. 139