Answer:
Electronic mail is a method of exchanging messages between people using electronic devices. Email entered limited use in the 1960s, but users could only send to users of the same computer, and some early email systems required the author and the recipient to both be online simultaneously, similar to instant messaging.
<span>When using the wait and signal operations, Wait sets the process's process control block to the blocked state and links it to the queue of processes waiting to enter this particular critical region.</span>
Answer:
Boot Sector Virus
Explanation:
A malicious software or malware is an executable line of code, programmed by a cybercriminal for ill intentions. There are many types of malware namely; viruses, rootkit, keylogger, trojan horse etc.
A boot sector virus is a kind of malware that runs before the operating system, affecting the boot sector of the hard disk, so even when a linux live cd is running as the operating system, the virus is still active.
A macro is a series of commands and instructions that you group together as a single command to accomplish a task automatically.
Answer:
online help and user forums iam not sure of this amswer maybe
