BUSN - Bloomberg

Corporate bonds: are issued by corporations to raise capital for particular purposes. They are sold to investors who receive the full value (principal) of the bond at its maturity date as well as a fixed amount of interest for the duration that they hold the bond.

Government bonds: are issued by all levels of government to raise capital for government spending. Bond holders receive the full value (principal) of the bond at its maturity date as well as a fixed amount of interest (yield) for the duration that they hold the bond. Government bonds carry less risk than corporate bonds.

Treasury bills (T-bills): are short-term government bonds with a maturity of less than one year. Rather than receiving fixed interest payments, the purchaser purchases the bond at an auction price that is below par value. When the bond is redeemed at its maturity date, the bondholder receives full par value. Thus the  appreciation of these bonds provides the return to the bondholder.

Commonly used commands for bond information: (Remember to hit the green <GO> button after each command).

Yellow <Govt> key - access main menu for government bonds

WB - World Bond Markets 
GGR - Global generic government rates (includes t-bills, notes and bonds)
SRCH - Custom bond search
CTB <Govt> - Canadian Treasury Bills
RELS - Related securities for an equity e.g. TLM CN <Equity> RELS <GO>