Adding hardware such as a disc drive (e.g. CD-ROM or DVD), modem, mouse, network card, printer, sound card, or speakers are not required, but give the computer additional functionality. 1  How to install computer hardware.
Retroactive Payments. The SSDI retroactive payments are payments made to disability applicants for the time passed between the onset of the disability to the date that the application was passed. Retroactive payments are paid for 12 months prior to the date of the application being passed.
Generally, a person who is beyond full retirement age when he or she first claims Social Security benefits may be entitled to up to six months of retroactive benefits paid in a lump sum. Lump sum payments can only be paid for months when the beneficiary was full retirement age or older.